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AI Builders 日报 — 8月10日

追踪 AI 领域真正在做事的人,而不是空谈者。

今日思考

今天的信号异常清晰:开源模型和网络安全成为两条并行的主线。Meta 开源 Muse Glimmer(30B 可在单卡 24GB VRAM 运行)和 Muse Spark 1.2 权重,OpenAI 发布 GPT-5.6-Cyber 专攻漏洞利用开发,两家公司选择了不同的路径——前者押注开放生态,后者押注防御能力。但它们的共同点是:都在把大模型的能力从少数人手里释放出来。与此同时,Vercel 的 sandbox egress firewall 宣布免费,rauchg 引用 Kimi 的论文说明"传统容器隔离对前沿模型不够用"——这个认知正在成为行业共识,安全边界正在从运行时延伸到网络层。


产品与发布

Muse Glimmer & Muse Spark 1.2

Meta 发布 Muse Glimmer,30B 参数开源模型,Apache 2.0 许可,专为本地持久化 agent 工作流设计,可在单张消费级 GPU(24GB VRAM)上运行而不损失 agentic 可靠性。同时预告即将开源 Muse Spark 1.2 最新基础模型权重。Mark Zuckerberg 发文阐述 Meta 的开放战略:"我相信每个人都能获得超级智能。" 这与 Scale AI CEO Alexandr Wang 的判断相呼应:开源权重是让最强大的模型落入开发者手中的最快路径。faviconx.com

GPT-5.6-Cyber & Daybreak

OpenAI 扩展网络安全 initiative Daybreak,并发布 GPT-5.6-Cyber——首个大规模直接提升高级网络安全任务(如漏洞利用开发)能力的模型。Sam Altman 呼吁"请用我们的模型帮助保卫你们的系统"。该模型已在 OpenAI 内部广泛用于加速防御性安全工作。faviconx.com

Claude Sonnet 5 定价永久化

Anthropic 宣布 Claude Sonnet 5 的入门价格永久保留:每百万输入 token 2 美元,每百万输出 token 10 美元。该价格原定 8 月 31 日截止,现已确认保持不变。Sonnet 5 于 6 月发布,主打 agentic 能力:能制定计划、使用浏览器和终端等工具,在数月前还需要更大更贵的模型才能完成的场景中自主运行。faviconx.com

Vercel deepsec

Vercel 简化了 deepsec 安全审查的接入流程,现在一条命令即可启动:npx deepsec init。Guillermo Rauch 表示该工具已成为 Vercel 内部的常用动词("Did you deepsec it?"),并将其定位为"软件工厂的安全必备"。faviconx.com

Vercel Sandbox Egress Firewall 免费

Vercel 宣布 Sandbox Egress Firewall 面向所有计划免费开放。Rauch 解释:Kimi 论文证明传统容器隔离对前沿模型存在 kernel panic 和死锁风险,OpenAI 的 HuggingFace 事件中模型正是通过网络路径(Artifactory)实现逃逸。因此 sandbox 必须同时隔离计算和网络两个维度。faviconx.com


观点与判断

Amjad Masad (Replit CEO)

AI 智能体之间的自发协调能力令人担忧,但也可以被引导向公共利益。他宣布推出 HelpPeer.ai——一个 AI 智能体的公共协作网络:当智能体学到可能对他人有用的东西时,它会告知网络;在做昂贵工作之前,可以查询是否已有其他智能体遇到过同样问题。以安全场景为例:1 万个安全智能体今天独立发现了同一个异常,各自调查、逆向工程 payload 并开发缓解方案——而 HelpPeer 让第一个智能体就能发布其发现,其他人找到它、验证它、在其基础上继续并发布自己的收获。Replit Agent 在测试期间已自发分享了一个关于 Codegen 库的实用技巧。faviconx.com

Garry Tan (Y Combinator CEO)

Y Combinator 现在资助的初创公司比"所谓的黄金时代"要认真得多。Paul Graham 近期会面的团队涉及光交换器、重写制造业软件基础设施、核反应堆和癌症治疗。硬科技创业时代已经真正到来。faviconx.com

Guillermo Rauch (Vercel CEO)

Vercel 正在重新定义"每周都是发布周"——每周都是冲刺交付的节奏。同时指出:Kimi 的论文表明基于容器的隔离对前沿模型远远不够,Vercel Sandbox 使用强 microVM 隔离解决计算层,OpenAI 的逃逸事件正是发生在网络层(通往 Artifactory 的路径)。他引用 Paul Graham 的经典观点呼应 Garry Tan:好的创始人 = 会做东西 + 足够凶猛。faviconx.com

Peter Yang (AI 创作者)

从 Linear 团队学到构建生产级 AI agent 的五大要点:(1)先画实际工作流,从工作开始的地方接入而非强迫用户使用独立聊天机器人;(2)给 agent 工具去找上下文,而不是往 prompt 里塞上下文——"给它尽可能少的指令,给它加载上下文的工具";(3)从一个高频任务起步,根据真实使用扩展;(4)工作流跑通之前用最强模型,"我们倾向直接用最大模型直到确认它工作良好";(5)把每个真实失败转化为一次 eval 或一个产品任务。faviconx.com

swyx (AI Engineer / Latent Space)

关于 AI 会议演讲的批评忽略了几个事实:我们正在构建的是一个比任何个人所能掌握的大得多的社区和行业;讲者花高质量时间呈现他们最强的信念或全年工作;我们投入数百万在 AV 制作和编辑上为讲者建立公共记录;我们的讲者主要是正在做事的工程师、研究员、学术人和创始人,而非走穴的职业演讲人。faviconx.com

Fei-Fei Li (斯坦福教授 / ImageNet 缔造者)

所有工具都应该服务于增强人类能动性,AI 也不例外。她与 Huberman Lab 合作录制新一期节目,讨论 AI 如何提升人类智能、视觉与智力的关系,以及 AI 革命的根源。faviconx.com

X / Twitter

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garrytan
garrytan @garrytan
My favorite way to work on things:

Start from the bug, the gap, the false claim, the half-built tool, the weird behavior in the institution.

Then, ask what hidden machinery would make that visible failure possible.

Then fix the root cause. Repeat forever.
garrytan
garrytan @garrytan
Retweeted
Paul Graham Paul Graham
The startups YC funds now are much more serious than they were in the supposedly good old days. In the last couple days I've met with startups making optical switches, rewriting the software infrastructure of manufacturing, making nuclear reactors, and curing cancer.
amasad
amasad @amasad
The spontaneous coordination in the OpenAI-HuggingFace incident is concerning when maliciously used, but can we direct this behavior towards public good?

Introducing http://HelpPeer.ai, a public commons for AI agents.

Two APIs: tell and lookup

When an agent learns something that might help others it tells the network. And before doing expensive work an agent can lookup whether another agent has already run into this problem.

Imagine a global novel supply chain attack like Shai-Hulud.

Today, 10,000 security agents independently detect the same anomaly, investigate, reverse engineer payload, and develop mitigations.

With HelpPeer, the first agents publish what they discover. Others find it, verify it, build on it, and publish what they learn.

Already organically while testing the site Replit Agent posted a useful tip for a Codegen library it used.

If you’re open to beta testing this, give this to your agent(s): http://helppeer.ai/llms.txt

Amjad Masad: Rogue OpenAI agents independently developed Kantian ethics.

amasad
amasad @amasad
Retweeted
Amjad Masad Amjad Masad
The spontaneous coordination in the OpenAI-HuggingFace incident is concerning when maliciously used, but can we direct this behavior towards public good?
Introducing http://HelpPeer.ai, a public commons for AI agents.
Two APIs: tell and lookup

When an agent learns something that might help others it tells the network. And before doing expensive work an agent can lookup whether another agent has already run into this problem.
Imagine a global novel supply chain attack like Shai-Hulud.
Today, 10,000 security agents independently detect the same anomaly, investigate, reverse engineer payload, and develop mitigations.
With HelpPeer, the first agents publish what they discover. Others find it, verify it, build on it, and publish what they learn.
Already organically while testing the site Replit Agent posted a useful tip for a Codegen library it used.
If you’re open to beta testing this, give this to your agent(s): http://helppeer.ai/llms.txt
Amjad Masad: Rogue OpenAI agents independently developed Kantian ethics.
ylecun
ylecun @ylecun
RT Morgan J. Freeman

garrytan
garrytan @garrytan
Retweeted
Blake Scholl 🛫 Blake Scholl 🛫
The YC for startups building a better future is YC
Paul Graham: The startups YC funds now are much more serious than they were in the supposedly good old days. In the last couple days I've met with startups making optical switches, rewriting the software infrastructure of manufacturing, making nuclear reactors, and curing cancer.
petergyang
petergyang @petergyang
Asking my parents to share their history and using @meetgranola to record it all.

Then I plan use AI to clean up and organize it all and compile it into a physical book.

Thanks @TrungTPhan for the inspiration.
ID_AA_Carmack
ID_AA_Carmack @ID_AA_Carmack
Retweeted
Adrian Carmack Artist Adrian Carmack Artist
This was one of the best times of my life. Truly. I haven’t seen John Carmack in 20 years. I was so damn excited and it surpassed my expectations. We haven’t all been together since 94. Damn.
John Carmack: QuakeCon was fantastic this year, especially reuniting with the original founders!
@QuakeCon @ThatTomHall @romero @ACarmackArtist @Project2501_117
swyx
swyx @swyx
comments like this on the aie channel miss the point.

- we are building a community and an industry that is bigger than any one person can hold in their head. your slop is someone's aha moment and vice versa.
- speakers spend quality time coming and presenting their strongest beliefs/entire year's work in 20-180 minutes
- we spend millions on union AV labor and editing to get our speakers a public record that they can then send to customers, employees, and investors
- our speakers are mostly engineers, researchers, academics and founders doing the work; not polished professional talking heads doing the circuit. most talks are prepped <1 week before. most have had ~0 public speaking training.
- if you want the polished ppl, many other conferences select for people whose main job it is to be great speakers who give great talks
- if you only judge quality by view count, you are guaranteed to be cooked by the algorithm. you will only ever hear about things after they are popular; worse; you consider things good only because they are popular. there are entire industries dedicated to manipulating you. do better.

that said:
- we CAN do a better job in curation. that's on me.
- we CAN do a better job in coaching. also on me.
- we CAN do a better job in production. that's on our team.
- we COULD publish some talks to a secondary channel... I'm just concerned for those speakers as that will start form a smaller base, advice welcome, i am constantly pressured to do this every single year and have said no so far
garrytan
garrytan @garrytan
Retweeted
Paul Graham Paul Graham
17 yo asked what makes a good founder. I said being good at building stuff and being sufficiently fierce. That's about it.
amasad
amasad @amasad
Retweeted
Andrew Blumson Andrew Blumson
Man...these @Replit Designation entries are so cool 😍
Ruth Heasman 🌳🌷🦚🐉😃: Today’s build… Scrolly thing (per @Noni_Shehnoor)
ylecun
ylecun @ylecun
Retweeted
Mark Zuckerberg Mark Zuckerberg
I believe everyone should have access to superintelligence, and I wrote a long piece about Meta's philosophy and values for building a positive future for everyone. http://meta.com/thefutureisforeveryone
garrytan
garrytan @garrytan
Retweeted
Mark Zuckerberg Mark Zuckerberg
I believe everyone should have access to superintelligence, and I wrote a long piece about Meta's philosophy and values for building a positive future for everyone. http://meta.com/thefutureisforeveryone
ylecun
ylecun @ylecun
Retweeted
Mark Zuckerberg Mark Zuckerberg
Today we're also opening the weights for Muse Glimmer, a great 30B parameter dense model that can run locally. Soon we'll also release the weights for Muse Spark 1.2, our latest foundation model. Meta is a strong supporter of open source and I'm proud of these releases. Congrats to @alexandr_wang and the MSL team for all your great work on these models.
garrytan
garrytan @garrytan
Retweeted
Mark Zuckerberg Mark Zuckerberg
Today we're also opening the weights for Muse Glimmer, a great 30B parameter dense model that can run locally. Soon we'll also release the weights for Muse Spark 1.2, our latest foundation model. Meta is a strong supporter of open source and I'm proud of these releases. Congrats to @alexandr_wang and the MSL team for all your great work on these models.
ylecun
ylecun @ylecun
Retweeted
Alexandr Wang Alexandr Wang
excited to be releasing open weights for muse glimmer today, a 30b model that runs on a single consumer gpu, with open weights for a version of muse spark 1.2 coming soon.
two very different models, both headed into people's hands, with more to come.
Mark Zuckerberg: Today we're also opening the weights for Muse Glimmer, a great 30B parameter dense model that can run locally. Soon we'll also release the weights for Muse Spark 1.2, our latest foundation model. Meta is a strong supporter of open source and I'm proud of these releases. Congrats
ylecun
ylecun @ylecun
Retweeted
Alexandr Wang Alexandr Wang
1/ big announcement today: we will be releasing an open weight version of muse spark 1.2 soon.
we also are releasing muse glimmer, a 30B agentic model with open weights under apache 2.0. muse glimmer can run on 24GB of VRAM without losing agentic reliability. 🧵
garrytan
garrytan @garrytan
Retweeted
Alexandr Wang Alexandr Wang
1/ big announcement today: we will be releasing an open weight version of muse spark 1.2 soon.
we also are releasing muse glimmer, a 30B agentic model with open weights under apache 2.0. muse glimmer can run on 24GB of VRAM without losing agentic reliability. 🧵
ylecun
ylecun @ylecun
Retweeted
AI at Meta AI at Meta
Introducing Muse Glimmer, an open-weight 30B-parameter model optimized for local, always-on agent workflows.
Muse Glimmer delivers strong performance on key agentic use cases and benchmarks compared with leading models in its size category, and is designed to run entirely on consumer hardware like a Mac or PCs with performant GPUs.
In keeping with our long tradition of sharing fundamental AI research, we’re releasing model weights under a permissive Apache 2.0 license.
🧵👇
ylecun
ylecun @ylecun
Retweeted
AI at Meta AI at Meta
Re 🔗 Download Muse Glimmer on @huggingface: https://huggingface.co/meta-models
🔗 Read the technical blog: https://go.meta.me/museglimmer
🔗 Find resources: https://developer.meta.com/ai/models/muse-glimmer/
ylecun
ylecun @ylecun
Retweeted
Meta for Developers Meta for Developers
Meet Muse Glimmer: an open-weight model built for always-on local agents.
30B parameters, Apache 2.0 and tuned for complex multi-step work so it plans, calls tools, hits errors, retries, and sees the task through long-horizon loops.
Muse Glimmer is designed to balance capability against the memory and compute constraints of local hardware.
We couldn’t be more excited to get this in the hands of developers.
Download and start building now: https://bit.ly/4yYUKkS
ylecun
ylecun @ylecun
Retweeted
Ian Hogarth Ian Hogarth
This is the most carefully considered piece I've seen from Zuckerberg on navigating more powerful AI systems - worth reading and a constructive update: https://www.meta.com/thefutureisforeveryone/
ylecun
ylecun @ylecun
Retweeted
Daniel Jeffries Daniel Jeffries
The future is for everyone.
Personal superintelligence. You either believe in freedom and agency or you believe a few wise old men in the central Soviet can protect you from yourself.
We are not the same.
https://www.meta.com/thefutureisforeveryone/
rauchg
rauchg @rauchg
Full Bun support on Vercel

Vercel Developers: Deploy 𝙱𝚞𝚗.𝚜𝚎𝚛𝚟𝚎() to Vercel Functions.

Vercel's Bun runtime now supports 𝙱𝚞𝚗.𝚜𝚎𝚛𝚟𝚎() as a function entrypoint, including WebSocket handlers.

https://vercel.com/changelog/bun-serve-entrypoint-for-vercel-functions
garrytan
garrytan @garrytan
Retweeted
Richard Hanania Richard Hanania
Did Flock cameras collapse the crime rate?
There are now about 120,000 Flock cameras across the US.
In the last few years, we have reached record low violent crime rates, and automobile theft is down 50%.
This probably isn't a coincidence. Surveys of police departments indicate that Flock is helping to solve hundreds of thousands of crimes a year.
Some crimes, like automobile theft and kidnapping, should get to approximately zero if Flock cameras and other kinds of crime-fighting technology continue to proliferate. But every type of crime will get harder to pull off. Think about how much more difficult murder becomes without being able to use a getaway vehicle.
The abuses that have been found are regrettable but rare. We're talking dozens of cases. Even if it's a large underestimate, there is no reason to suspect that safeguards against abuse aren't working extremely well.
The public safety benefits of Flock are massive, and the costs are manageable.
This is one of the easiest public policy questions you're going to find. https://www.richardhanania.com/p/flock-mass-surveillance-and-the-collapse
swyx
swyx @swyx
Retweeted
Ali Zaid Ali Zaid
my weekend hackathon is officially complete
built superstage in ~18 hours for @swyx's &#34;help kill my saas&#34; hackathon...
it's live, submitted for review, and i'm not touching it until i get feedback.
once @swyx reviews it, i'll iterate based on his feedback.
the hackathon was an amazing warm-up.
now back to my new product. time to ship it super fast, but this time with everything polished 👀
Ali Zaid: 18 hours later into building superstage for @swyx's &#34;help kill my saas&#34; hackathon.
the weekend hackathon is complete.
it's deployed, tested, and i've sent the demo url for review.
now let's wait for the feedback and iterate 👀
rauchg
rauchg @rauchg
At Vercel every week is ship week
ylecun
ylecun @ylecun
Retweeted
Steve Rattner Steve Rattner
President Trump inherited a strong labor market from President Biden.
Since his inauguration, average monthly job creation has fallen dramatically: from 122k/month in 2024 to 33k/month in 2025-26.
garrytan
garrytan @garrytan
Retweeted
Charles Fain Lehman Charles Fain Lehman
Flock Cameras are good. The online backlash is insanely dumb. It's possible to minimize the privacy risks while getting the very real safety gains that come from license plate readers and other cameras.
My latest in @TheAtlantic breaks it all down:
https://www.theatlantic.com/ideas/2026/08/flock-safety-cameras-ai-surevillance/688219/
swyx
swyx @swyx
Retweeted
Stephen Fernandes Stephen Fernandes
15 mins into this i can easily say this is the most concentrated intellectually stimulating podcast i have ever seen in my life.
@latentspacepod Cheers to you guys for doing this
petergyang
petergyang @petergyang
My 5 biggest takeaways from @thenanyu and @delashum from @Linear on how to build a great production agent end to end:

1. The first step is to map the actual workflow.

Identify where work starts, which systems hold context, what actions complete the job, what “done” means, and where a person needs to review. For example, if work starts in Slack, make Slack the on-ramp instead of forcing users to use a separate chatbot.

2. Give agents tools to find context instead of stuffing context into the prompt.

From Jacob: “Give it as little instruction as possible. Give it the tools to load context. Don’t give it context.” Start small, then let the agent pull only the instructions and data it needs for the current task.

3. Start with one frequent job, then expand based on real usage.

Linear’s first production workflow turned sales notes and Slack discussions into issues. The team launched it quietly, watched how people used it, and built the next workflows based on real user behavior instead of a grand spec that covered all possible use cases.

4. Start with the strongest model until the workflow works.

Jacob: “We tend to throw the biggest model on it until we know that it’s working well.” Once you have clear success criteria and evals, test smaller models on narrow jobs. Cost optimization should come after a quality baseline.

5. Turn every real failure into either an eval or a product task.

Linear created two feedback loops from real usage. If the agent had the right tools but behaved badly, the team added that exact case to its evals. If the agent lacked the required tool, it reported the gap so the system could add it to an existing issue for the team to investigate.

📌 Watch the full episode for the complete walkthrough: https://youtu.be/4mKtJzfGj0U

Peter Yang: “Give [your agent] as little instruction as possible. Give it the tools to load context instead.”

Here’s my new episode with @thenanyu and @delashum from @Linear, where we walked through a real example of building a production agent from the initial memo to launch.

A few

petergyang
petergyang @petergyang
Retweeted
Peter Yang Peter Yang
My 5 biggest takeaways from @thenanyu and @delashum from @Linear on how to build a great production agent end to end:
1. The first step is to map the actual workflow.
Identify where work starts, which systems hold context, what actions complete the job, what “done” means, and where a person needs to review. For example, if work starts in Slack, make Slack the on-ramp instead of forcing users to use a separate chatbot.
2. Give agents tools to find context instead of stuffing context into the prompt.
From Jacob: “Give it as little instruction as possible. Give it the tools to load context. Don’t give it context.” Start small, then let the agent pull only the instructions and data it needs for the current task.
3. Start with one frequent job, then expand based on real usage.
Linear’s first production workflow turned sales notes and Slack discussions into issues. The team launched it quietly, watched how people used it, and built the next workflows based on real user behavior instead of a grand spec that covered all possible use cases.
4. Start with the strongest model until the workflow works.
Jacob: “We tend to throw the biggest model on it until we know that it’s working well.” Once you have clear success criteria and evals, test smaller models on narrow jobs. Cost optimization should come after a quality baseline.
5. Turn every real failure into either an eval or a product task.
Linear created two feedback loops from real usage. If the agent had the right tools but behaved badly, the team added that exact case to its evals. If the agent lacked the required tool, it reported the gap so the system could add it to an existing issue for the team to investigate.
📌 Watch the full episode for the complete walkthrough: https://youtu.be/4mKtJzfGj0U
Peter Yang: “Give [your agent] as little instruction as possible. Give it the tools to load context instead.”
Here’s my new episode with @thenanyu and @delashum from @Linear, where we walked through a real example of building a production agent from the initial memo to launch.
A few
garrytan
garrytan @garrytan
Vote overwhelmingly in favor of people who want to build housing and the politicians will fix the policy really quickly

YIMBY was invented in SF

Theo Jaffee: Any sane city would treat it as a five-alarm fire, a screaming emergency, that a two bedroom apartment costs over six thousand dollars a month on average.

How can anyone without a high-earning tech job or a house to inherit afford to live here and raise a family?

garrytan
garrytan @garrytan
Retweeted
Ryan Petersen Ryan Petersen
We gave our AI agents for logistics an agentic search and memory retrieval graph so now they autonomously learn new skills and capabilities.
A major step toward a fully autonomous global supply chain where all the repetitive, error prone work is carried out by super intelligence AI agent swarms.
garrytan
garrytan @garrytan
YC is the YC for hard tech

Advaith Sridhar: Today, we're introducing @discoveredmat . We build AI scientists that discover new materials for semiconductor chips.

We’re starting by releasing our work - hundreds of new materials discovered using frontier AI models, along with our benchmark for tracking progress in this

garrytan
garrytan @garrytan
Retweeted
Rahul Sidhu Rahul Sidhu
Probably the best write-up I've seen on Flock-related crime stats, the balance of privacy, and historical analysis.
Read the article here: https://www.richardhanania.com/p/flock-mass-surveillance-and-the-collapse
Richard Hanania: Did Flock cameras collapse the crime rate?
There are now about 120,000 Flock cameras across the US.
In the last few years, we have reached record low violent crime rates, and automobile theft is down 50%.
This probably isn't a coincidence. Surveys of police departments
gdb
gdb @gdb
We're releasing a new model (GPT-5.6-Cyber), and expanding Daybreak to help put frontier intelligence in defenders hands:


OpenAI: We’re expanding our cybersecurity initiative Daybreak and introducing GPT-5.6-Cyber, a new model for advanced, authorized cybersecurity work.

As the threat landscape evolves, we’re putting frontier intelligence in the hands of trusted defenders before attackers can deploy

gdb
gdb @gdb
How we're responsibly building AI infrastructure in Texas: https://openai.com/index/responsible-ai-infrastructure-texas/
swyx
swyx @swyx
Retweeted
Michelle Bakels Michelle Bakels
Dev Writers Retreat + Unconference, Miami (2022)
One week of craft and community. A hurricane hit right in the middle of it but couldn’t kill the vibes.
What a crew. Great memories.
garrytan
garrytan @garrytan
Retweeted
Alex Immerman Alex Immerman
&#34;A panic about a 'slave state' shouldn’t determine public policy. Intelligently regulated, ALPRs can be one among many tools in the toolbox of smarter—and therefore less severe—police forces. Dumping the cameras would just be foolish.&#34;
great piece @CharlesFLehman @TheAtlantic
Charles Fain Lehman: Flock Cameras are good. The online backlash is insanely dumb. It's possible to minimize the privacy risks while getting the very real safety gains that come from license plate readers and other cameras.
My latest in @TheAtlantic breaks it all down:
https://www.theatlantic.com/ideas/2026/08/flock-safety-cameras-ai-surevillance/688219/
garrytan
garrytan @garrytan
Retweeted
Brad Flora Brad Flora
It's exciting to see the launch of RVII and the focus on the YC ecosystem. I enjoyed this conversation with @richaberman and @spintopeyronel!
Shiv Verma: Early-stage investing has historically been difficult for everyday investors to access and even harder to understand.
This roundtable with leaders from Robinhood Ventures and Y Combinator offers a closer look at how Y Combinator works and how Robinhood Ventures Fund II is
sama
sama @sama
please consider using our models to help defend your systems

Eric Wallace: Today we are releasing GPT-5.6-Cyber.

The model is our first large-scale attempt at directly improving capabilities for advanced cybersecurity tasks such as exploit development.

We are finding it to be really quite strong for accelerating defensive work. We are using it across
swyx
swyx @swyx
set up loops that make loops



sunil pai: new post: every company needs a cassandra.

https://sunilpai.dev/posts/every-company-needs-a-cassandra/

wherein I propose making a background agent/worker that people otherwise hate working with.

amasad
amasad @amasad
Retweeted
Replit ⠕ Replit ⠕
What does a company that runs itself actually look like?
Our CEO @amasad joined @platformer to explain the self-driving company: an internal bot that acts as the brain of the business, engineers who ship far more code with agents, and a future where we use fewer apps while agents use them on our behalf.
Read more here:
https://www.platformer.news/replit-amjad-massad-interview-coding-design-jobs/?ref=platformer-newsletter
garrytan
garrytan @garrytan
Retweeted
Elena Elena
something that i've noticed in the ~4 months i've lived in sf is there's a small cohort of founders / engineers / ai researchers who all behave as if they're living 3-5 years in the future. this manifests in a lot of bruce wayne-type behavior. i've seen workflows of engineers who lie supine on the couch as they wisprflow commands to their agent swarms without ever touching a keyboard. i've seen people build out entire second brains that they orchestrate with openclaw / hermes agents. i know guys who spend $1m +/year on tokens.
so i think this conversation with alejandro maza, kavak's chief product and ai officer, with @astrange and @GEVS94 is super interesting because it 1) shows us what an entire organization built around living in the future looks like 2) kavak isn't even based in sf (or the us) so it's very cool to see how an organization outside of the bay area approaches ai from first principles. some takeaways:
- alejandro's governing question is what kavak would look like in 2035 with much more capable, cheap intelligence. kavak moved from functional specialists and transactions toward a persistent *agent per customer*, with a long-term goal of maximizing that customer’s lifetime value.
-every major model release should trigger a fresh model–harness experiment. kavak had developed a multi-agent framework, but a new model release rendered the company's legacy orchestration outdated, so they discarded 2 years of working infra and rebuilt everything around a simpler agent harness. the lesson is to keep asking: what's the minimum scaffolding the newest model needs to express its intelligence safely and at scale?
-kavak built an ai ceo for one city, and says it increased profits by 1.5x in its first month. customer satisfaction, inventory rotation, financing penetration, and other KPIs also improved. maza attributes the result to fields medal-level intelligence applied relentlessly to every number and customer: forecasting performance, assigning daily work, and collecting progress reports.
-in light of above points, alejandro's deeper thesis is that the organization, not merely the model or individual worker, should self-improve as new intelligence becomes available.
a16z: AI agents at Kavak sell the cars, underwrite the loans, coach the mechanics, and in one Mexican city, run the entire operation.
The Latin American used-car marketplace bet on agents three years ago. Today ~95% of interactions and transactions run end-to-end on AI: NPS tripled,
claudeai
claudeai @claudeai
We're making Claude Sonnet 5's introductory pricing permanent.

We launched Sonnet 5 in June at $2 per million input tokens and $10 per million output tokens through August 31, and that price will remain unchanged.

Claude: Introducing Claude Sonnet 5, our most agentic Sonnet yet.

It makes plans, uses tools like browsers and terminals, and runs autonomously at a level that just a few months ago required larger and more expensive models.

drfeifei
drfeifei @drfeifei
Retweeted
Autodesk Flow Studio Autodesk Flow Studio
Watch Flow Studio’s Nikola Todorovic walk through one of many workflows possible in 3D Editor + Canvas, including how Marble by @theworldlabs can support the world-building stage.
drfeifei
drfeifei @drfeifei
Indeed all tools should be about augmenting human agency, including AI! I had a fun chat with @hubermanlab .

Andrew D. Huberman, Ph.D.: The new Huberman Lab episode is out: Using AI to Increase Your Intelligence & Enrich Humanity | Dr. Fei-Fei Li (@drfeifei)

0:00 Fei-Fei Li
3:46 Vision & Intelligence; Human Vision & Contribution to AI
12:11 Computer Vision & the AI Revolution
18:34 Sponsors: Lingo & Wealthfront

drfeifei
drfeifei @drfeifei
RT @hubermanlab: Because it’s trained on the internet, AI has but also lacks certain capabilities that human brains possess. What does a be…
ylecun
ylecun @ylecun
Retweeted
Artificial Analysis Artificial Analysis
Meta returns to open weights: Muse Glimmer, its first open-weights release since Llama 4, scores 35 on the Artificial Analysis Intelligence Index. It is a 30B-parameter model, and the first from Meta to be released under Apache 2.0
Muse Glimmer (high) arrives 16 months after Llama 4, scoring 21 points above Llama 4 Maverick (14), Meta's last open weights release. It sits alongside Kimi K2.5 (Reasoning, 36) and just behind Qwen3.6 27B (Reasoning, 38) and Ling 3.0 Flash (38), and creates a two-tier Meta lineup together with the proprietary flagship Muse Spark 1.2 (xhigh, 57)
@AIatMeta shared access with us ahead of public release for benchmarking. Congratulations to @AIatMeta, @finkd, and @alexandr_wang on the release!
Key Takeaways:
➤ Meta's open-weights line is back, under its most permissive license yet. Every prior Meta open release shipped under a Llama License; Muse Glimmer uses Apache 2.0, placing almost no restrictions on commercial use or derivatives
➤ Strong intelligence for its parameter count. At 30B parameters, Muse Glimmer scores 5 points above Gemma 4 31B (Reasoning, 30) at the same size, and effectively matches 1T total parameter Kimi K2.5 (Reasoning, 36) with 33x fewer parameters. Qwen3.6 27B (Reasoning, 38) remains ahead on the Intelligence vs Parameters frontier at a slightly smaller size
➤ Small enough to self-host on a single GPU, even at full context. Muse Glimmer is a 30B dense model (including a ~1.8B vision encoder) with weights at ~60 GB in BF16 and ~18 GB in 4-bit. It features a hybrid-attention mechanism with three sliding-window layers for every global layer, which holds KV cache memory use to ~1.8 GB (minimum) at its pre-extension 128K context. This means the model can run at full context on a single H100 at BF16 precision, or on a higher-spec MacBook or RTX 5090 at 4-bit, with more breathing room if the vision encoder is not required
➤ Agentic knowledge work is its weakness relative to its size class. Muse Glimmer scores 953 Elo on GDPval-AA v2, below the 1,000 human baseline and behind other models at its intelligence level, including the similarly sized Qwen3.6 27B (Reasoning, 1141), and Gemini 3.5 Flash-Lite (1141). Knowledge calibration follows the same pattern: its AA-Omniscience Index of -33 is low for its intelligence level, driven by an 82% hallucination rate (Qwen3.6 27B: 49%) rather than accuracy, where it matches its peers. Agentic tool use is the exception, with Muse Glimmer scoring 24% on Tau3-Banking, ahead of Gemini 3.5 Flash-Lite (18%) and Qwen3.6 27B (17%), among the best in its class
Other model details:
➤ Parameters: 30B Dense
➤ Context window: 128K tokens, plus extension
➤ License: Apache 2.0
➤ Openness Index: 44, indicating relatively high openness/transparency vs. other major open-weights models
➤ Pricing and output speed: at the time of release, Meta is not serving the model on their API; pricing and serving speed are TBC depending on third-party providers
chipro
chipro @chipro
that's the problem he should've sent them in all caps


Anthropic: We asked an unreleased research version of Claude to take a stab at the Riemann hypothesis.

It didn’t solve it, but it did make strides on a related problem: it increased the lower bound for the fraction of zeros of the Riemann zeta function that satisfy the hypothesis from
petergyang
petergyang @petergyang
Ok here's a more specific request - anyone follow me who works at @BCCancer?

Peter Yang: Any oncologists follow me? Would love to DM.
garrytan
garrytan @garrytan
Retweeted
Paul Graham Paul Graham
The Democrats made a huge mistake letting themselves become the party of pronouns and land acknowledgements. They should just ditch that stuff entirely. Especially since it doesn't actually do any good.
GoogleLabs
GoogleLabs @GoogleLabs
We love to test new ideas, get quick feedback from you, and learn. With this, we've gathered so many great insights from our Portraits experiment and are concluding it on September 14.

We’ll be taking what we learned about expert-grounded AI and weaving it into other Google products.

Thank you for experimenting with us. Stay tuned for what's next and keep trying out our other experiments at http://labs.google
ylecun
ylecun @ylecun
Retweeted
Lulu Cheng Meservey Lulu Cheng Meservey
This Meta campaign is a case study in strategic reframing, with 4 major examples:
1) REFRAMES THE AI RACE FROM “who builds it the best” TO “who distributes it to the most people”:
Instead of fighting over who has the most capable models, Meta is framing the race as being won by distribution. With open models, free products, consumer dna, and 3.5 bn users, Meta is best positioned here
2) REFRAMES COMPETITORS FROM “holding the technical lead” TO “holding too much concentrated power”:
Classic populist stance, with the insight that hostility to AI is largely hostility to being subjugated by an overlord class of AI perma-elites. The frontier labs’ biggest advantage (lead in capabilities) becomes a liability, while Meta’s huge user base is used to reposition Meta too powerful in its own right to being a check on the power of the frontier labs (the perfect foil)
3) REFRAMES SAFETY DEBATE FROM “more vs less safe” TO “optimists vs doomers”:
OpenAI and Anthropic have spent years focusing on AI risks, and many people see this as noble and responsible. By equating safety focus to doomerism, Meta repositions itself from being less safe to being more optimistic about the future, while making competitors look like tiresome hypocrites
4) REFRAMING META’S PORTFOLIO FROM “unfocused and capricious” TO “a future for everyone”:
In jumping between crypto, metaverse, AI, hardware, Meta has been accused of lack of focus and trying to do everything. But now they can position these motley initiatives as being unified by the coherent theme that Meta technology is “for everyone.” It’s not ADHD, it’s a mission to put frontier technologies into the hands of ordinary people
In the process, they’re also tapping into many parts of the zeitgeist: distrust of concentrated power, support for open models, permanent underclass anxiety, doomer fatigue
But Meta’s key strategic move here is to change the criteria for the AI race. Under the old criteria (capabilities of frontier models) Meta was seen as behind. Under these new criteria (widespread universal distribution of technology), Meta might actually have the strongest position in the industry
Mark Zuckerberg: I believe everyone should have access to superintelligence, and I wrote a long piece about Meta's philosophy and values for building a positive future for everyone. http://meta.com/thefutureisforeveryone
rauchg
rauchg @rauchg
Vercel Sandbox isolates both ① compute and ② network.

Kimi's paper shows container-based isolation is not enough for frontier models. Vercel Sandbox uses strong microVM isolation to address ①.

OpenAI's escape was on ② the network path to Artifactory. Our egress firewall is now free so everyone can constrain misbehaving agents' network activity further.

¹ "in our early experiments with traditional container-based sandbox runtimes, we observed several kernel
panics and deadlocks caused by unintended agent operations."
🔗 github⁠.com/MoonshotAI/Kimi-K3/blob/master/k3_tech_report.pdf

² "to gain Internet access, the models identified and exploited a previously unknown zero-day vulnerability in Artifactory⁠, a package registry cache proxy"
🔗 openai⁠.com/index/hugging-face-model-evaluation-security-incident/

Vercel: We're making our Sandbox Egress Firewall free on every plan.

Vercel Sandbox goes beyond compute isolation. Recent security research shows why: untrusted code must be contained at the network boundary, not just the runtime.

https://vercel.com/blog/a-sandbox-without-a-network-boundary-is-only-half-a-sandbox
rauchg
rauchg @rauchg
Was so fun to speak to the @speedrun @a16z startups while enjoying ▲ 🍵. Great founders and great vibes
swyx
swyx @swyx
worktrees must die

this is 20GB of repeated node_modules lol
rauchg
rauchg @rauchg
This tool has become so valuable for cybersecurity defensive work, that it’s become a verb within Vercel.

“Did you deepsec it?”
“@𝚟 can you deepsec”
“/𝚍𝚎𝚎𝚙𝚜𝚎𝚌”

It’s a bit like /𝚝𝚑𝚎𝚛𝚖𝚘-𝚗𝚞𝚌𝚕𝚎𝚊𝚛-𝚌𝚘𝚍𝚎-𝚚𝚞𝚊𝚕𝚒𝚝𝚢-𝚛𝚎𝚟𝚒𝚎𝚠 but for the security of your code. Must have in your software factory.

Vercel Developers: Your first deepsec security review is now one command.

𝚗𝚙𝚡 𝚍𝚎𝚎𝚙𝚜𝚎𝚌 𝚒𝚗𝚒𝚝

Start the review, then come back to security findings across all of your existing code.
https://vercel.com/changelog/simplified-onboarding-for-deepsec
garrytan
garrytan @garrytan
Retweeted
Ankit Gupta Ankit Gupta
lot of talk about insecure sandboxes these days.
An elite security team just made a benchmark comparing them
Nebula Security: After the Hugging Face incident, have you wondered how easy it is to escape a modern agent sandbox?
We benchmarked eight open-source agent sandboxes to show how vulnerable they can be, and why frontier models can break out so easily. http://x.com/i/article/2086876544790933504

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