Claude Mythos and misguided open-weight fearmongering
Another dance around fears of open-source.
Scaling Managed Agents: Decoupling the brain from the hands
Harnesses encode assumptions that go stale as models improve. Managed Agents—our hosted service for long-horizon agent work—is built around interfaces that stay stable as harnesses change.
Assessing Claude Mythos Preview’s cybersecurity capabilities
Claude Mythos Preview is a new general-purpose language model that is strikingly capable at computer security tasks. This post provides technical details for researchers and practitioners…
Claude Code’s Source Leaks, OpenAI Exits Video Generation, Gemini Adds Music Generation, LLMs Learn at Inference
The Batch AI News and Insights: Voice-based AI that you can talk to is improving rapidly, yet most people still don’t appreciate how pervasive voice UIs…
Claude Dispatch and the Power of Interfaces
We often lack the tools for the job, even if the AI is capable enough
Red-Teaming Anthropic's Internal Agent Monitoring Systems
Update: Further details on this exercise are included in our Frontier Risk Report (February-March 2026), within the Anthropic section of Appendix B. In collaboration with Anthropic,…
How we built Claude Code auto mode: a safer way to skip permissions
Claude Code users approve 93% of permission prompts. We built classifiers to automate some decisions, increasing safety while reducing approval fatigue. Here's what it catches, and…
Harness design for long-running application development
Harness design is key to performance at the frontier of agentic coding. Here's how we pushed Claude further in frontend design and long-running autonomous software engineering.
LWiAI Podcast #237 – Nemotron 3 Super, xAI reborn, Anthropic Lawsuit, Research!
Nemotron 3 Super: An Open Hybrid Mamba-Transformer MoE for Agentic Reasoning, Another XAI Cofounder Has Left, Anthropic Sues Department of Defense
Last Week in AI #338 – Anthropic sues Trump, xAI starting over, Iran AI Fakes
Anthropic sues Trump administration in AI dispute with Pentagon, ‘Not built right the first time’ — Musk’s xAI is starting over again, again, Cascade of A.I.…
Review of the Anthropic Sabotage Risk Report: Claude Opus 4.6
We reviewed two versions of Anthropic’s Sabotage Risk Report for Claude Opus 4.6, producing two corresponding review documents: our review of the February 11 version and…
Last Week in AI #337 – Anthropic Risk, QuitGPT, ChatGPT 5.4
Anthropic officially told by DOD that it’s a supply chain risk, ‘cancel ChatGPT’ trend is growing after OpenAI signs a deal with the US military, and…
RT Anthropic: A statement from Anthropic CEO Dario Amodei: https://www.anthropic.com/news/where-stand-department-war
RT AnthropicA statement from Anthropic CEO Dario Amodei: https://www.anthropic.com/news/where-stand-department-war
Eval awareness in Claude Opus 4.6’s BrowseComp performance
Evaluating Opus 4.6 on BrowseComp, we found cases where the model recognized the test, then found and decrypted answers to it—raising questions about eval integrity in…
Reverse engineering Claude's CVE-2026-2796 exploit
This post dives deep into how Claude wrote an exploit for one of the vulnerabilities it found in Firefox.
Anthropic vs. the U.S. Government, Nano Banana’s Makeover, Frontier Agent Management, Google’s Mathematics Solutions
The Batch AI News and Insights: I’m thrilled to announce Context Hub, a new tool to give to your coding agents the API documentation they need…
LWiAI Podcast #235 – Sonnet 4.6, Deep-thinking tokens, Anthropic vs Pentagon
Anthropic releases Sonnet 4.6, Google Rolls Out Gemini 3.1 Pro, Anthropic CEO Amodei says Pentagon’s threats ‘do not change our position’ on AI
Observations from two CLI game reimplementation runs with Opus 4.6
Summary: Opus 4.6 can, with a simple agent scaffold, create mostly-playable but somewhat broken CLI versions of Slay the Spire and Balatro1. Intro Last weekend I…
RT Anthropic: A statement from Anthropic CEO, Dario Amodei, on our discussions with the Department of War. https://www.anthropic.com/news/statement-de…
RT AnthropicA statement from Anthropic CEO, Dario Amodei, on our discussions with the Department of War.https://www.anthropic.com/news/statement-department-of-war
Last Week in AI #336 – Sonnet 4.6, Gemini 3.1 Pro, Anthropic vs Pentagon
Anthropic releases Sonnet 4.6, Google Rolls Out Latest AI Model Gemini 3.1 Pro, Pentagon threatens to cut off Anthropic in AI safeguards dispute
Claude Sonnet 4.6 is now available in Windsurf
Claude Sonnet 4.6 is now available in Windsurf with limited-time promotional pricing for self serve users: 2x credits without thinking and 3x credits with thinking.
LWiAI Podcast #234 – Opus 4.6, GPT-5.3-Codex, Seedance 2.0, GLM-5
An action-packed episode!
Last Week in AI #335 – Opus 4.6, Codex 5.3, Gemini 3 Deep Think, GLM 5, Seedance 2.0
A crazy packed edition of Last Week in AI! Plus some small updates.
Subagents and web search in Claude Code
Ollama now supports subagents and web search in Claude Code.