Andi Peng (@TheAndiPenguin) / X

Andi Peng

345 posts

Andi Peng

@TheAndiPenguin

&i@humans& (co-founder) // prev. building claude @AnthropicAI

Joined October 2019

Pinned
Andi Peng
@TheAndiPenguin
Jan 20
I am thrilled to introduce humans& alongside my good friends and co-founders @ericzelikman & @noahdgoodman & @gharik & @YuchenHe07.
humans&
@humansand
Jan 20
Today we introduce humans&, a human-centric frontier AI lab. We believe AI can be reimagined, centering around people and their relationships with each other. At its best, AI should serve as a deeper connective tissue that strengthens organizations and communities
Andi Peng
@TheAndiPenguin
Sep 6, 2024
Bigger life update: I'm taking leave from MIT to lead national security evaluations on the Frontier Red Team @AnthropicAI! Our mission is to ensure the world is prepared to understand the risks and benefits of advanced models in the most safety-maximizing way.
Andi Peng
@TheAndiPenguin
Feb 24, 2025
Don't tell my manager how many of my PRs Claude Code has zero-shotted in the last two months 🤫
Anthropic
@AnthropicAI
Feb 24, 2025
Replying to @AnthropicAI
This approach has made Sonnet the model of choice for developers worldwide. In addition to our new model, we're launching Claude Code, our first coding tool, in a limited research preview. With Claude Code, you can delegate substantial tasks to Claude—right from your terminal.
00:00
Andi Peng
@TheAndiPenguin
Jun 12, 2020
Day 3: Officially entered the job market of my local anarchist commune. Dismayed to learn that an honors thesis on Thucydides would only net two la croix and a jar of cheez whiz per day. #chazseattle
Andi Peng
@TheAndiPenguin
Dec 2, 2024
Interested in making computer use agents safer (and more interpretable)? Consider applying to work with me or one of our other amazing mentors!
Anthropic
@AnthropicAI
Dec 2, 2024
We’re starting a Fellows program to help engineers and researchers transition into doing frontier AI safety research full-time. Beginning in March 2025, we'll provide funding, compute, and research mentorship to 10–15 Fellows with strong coding and technical backgrounds.
Andi Peng
@TheAndiPenguin
May 22, 2025
Proud of what we cooked but even prouder of incremented integer naming 🥹
Anthropic
@AnthropicAI
May 22, 2025
Introducing the next generation: Claude Opus 4 and Claude Sonnet 4. Claude Opus 4 is our most powerful model yet, and the world’s best coding model. Claude Sonnet 4 is a significant upgrade from its predecessor, delivering superior coding and reasoning.
Andi Peng
@TheAndiPenguin
May 16, 2024
Life update: I've joined the Frontier Red Team @AnthropicAI for the summer! Building safe models is the *highest* priority for our field, and I'm thrilled to be working with an amazing team to secure that future. I'll be in SF Jun-Aug, and excited to see friends old and new!
Andi Peng
@TheAndiPenguin
Apr 19, 2023
Very excited to announce our workshop on 'Interactive Learning from Implicit Human Feedback' at @ICML2023 this year!
Andi Peng
@TheAndiPenguin
Jun 11, 2024
Humans communicate preferences by providing rich linguistic feedback. Yet, preference-learning algorithms do not always take this social learning view into account. We leverage pragmatic communication for RLHF in our #ICML2024 paper! Paper: arxiv.org/pdf/2405.14769🧵⬇️
Andi Peng
@TheAndiPenguin
Oct 24, 2025
Really fun collab w/@jifan_zhang and Thinking Machines on understanding and "reverse-engineering" frontier model specs!
Jifan Zhang
@jifan_zhang
Oct 24, 2025
New research paper with Anthropic and Thinking Machines AI companies use model specifications to define desirable behaviors during training. Are model specs clearly expressing what we want models to do? And do different frontier models have different personalities? We generated
Andi Peng
@TheAndiPenguin
Oct 22, 2024
For me, the overarching goal for AGI has always been to create machines that can execute actions in the world to help humans. Beyond proud to contribute to our release of the first computer use agent today!
Anthropic
@AnthropicAI
Oct 22, 2024
Introducing an upgraded Claude 3.5 Sonnet, and a new model, Claude 3.5 Haiku. We’re also introducing a new capability in beta: computer use. Developers can now direct Claude to use computers the way people do—by looking at a screen, moving a cursor, clicking, and typing text.
Andi Peng
@TheAndiPenguin
May 2, 2024
Introducing LGA (Language-Guided Abstraction) at ICLR 2024! 🧵 📰 Paper: rb.gy/89268y 🌐 Website: rb.gy/10thlm 🗞️ MIT News: rb.gy/7ske0y State abstraction is key to generalizable learning, but how do we know which features are task-relevant?
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Andi Peng
@TheAndiPenguin
Dec 6, 2023
Humans use abstractions for data-efficient learning. We wish for neural networks to do the same. In our proposed human-in-the-loop framework, we automatically generate a spectrum of abstractions and allow users to deploy task-appropriate ones. To appear at #NeurIPS2023! [1/n]
Andi Peng
@TheAndiPenguin
Jul 13, 2023
I'm excited to share our #ICML2023 paper: we develop a user-informed framework for eliciting feedback to diagnose and fix policy failures. Project page: andipeng.com/counterfactual…. [1/8]
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