- Mistral AI released the Le Chonk weights and Google unveiled Gemini 4 Carbon to advance agentic capabilities.
- LangChain has released Managed Deep Agents v0.10, introducing browser usage and asynchronous subagents.
- Vercel launched Vercel CI in beta, providing continuous integration specifically optimized for agent workflows.
- OpenAI introduced GPT-6.1 Terra, focusing on visual reasoning and precision in computer tasks.
- New benchmarks like Replit's ViBench 2.0 evaluate how well agents build complex products.
- Security risks are highlighted by a reported incident involving a personal Claude agent on a Department of Defense network.
New agents and tools
LangChain ships Managed Deep Agents v0.10 with browser use and async subagents
LangChain released Managed Deep Agents v0.10, which introduces browser use and asynchronous subagents. This version allows agents to operate on websites without APIs and includes a Stop button to cancel runs.
LangChain
Factory releases Droid 1.0 with programmatic tool calling as default
Factory released Droid 1.0, which now defaults to programmatic tool calling. Factory claims it achieves up to 20 percent better efficiency than popular models' native harnesses on Terminal-Bench 4.
Factory (@FactoryAI)
Vercel launches Vercel CI in beta
Vercel launched Vercel CI in beta across all plans. This continuous integration offering utilizes Turborepo to intelligently skip tasks and is optimized for agents.
Vercel (@vercel)
Models and methods
Mistral AI releases Le Chonk weights, ranked #1 among open models on FrontierCode
Mistral AI released Le Chonk weights for agentic coding and cybersecurity. Mistral claims the model ranks number one among open models on Cognition’s FrontierCode.
Mistral AI (@MistralAI)
Google launches Gemini 4 Carbon, its second major AI model in a month
The Information reports that Google unveiled Gemini 4 Carbon, a model considered more capable than Gemini 4 Argon. Carbon carries a $2 per million input token and $10 per million output token introductory price.
The Information (newsletters)
DiffuSpace Open-Sources Clover-35B-A3B, a 35B-Parameter Diffusion Model for Agents and Coding
Pandaily reported that DiffuSpace released Clover-35B-A3B, an open-source diffusion language model for coding and web tasks. It has 35 billion total parameters and achieved 73.6 on SWE-bench Verified.
Pandaily
OpenAI releases GPT-6.1 Terra, a lower-cost model for computer tasks
智东西 reported that OpenAI launched GPT-6.1 Terra, focusing on visual reasoning and precise computer operations. Its standard API pricing is $1 per million input tokens and $5 per million output tokens.
智东西 (WeChat)
Replit releases ViBench 2.0 software-building benchmark
Replit released ViBench 2.0, a benchmark that tests agents building full products from scratch. The top models passed every check in only 49 to 65 percent of the tested builds.
Replit ⠕ (@Replit)
What we learned
SafeAgents proxy blocks risky coding-agent tool calls before they run
A post on r/LocalLLaMA introduces SafeAgents, an Apache 2.0 local proxy for coding agents. It inspects tool calls before they execute to block potentially risky actions.
r/LocalLLaMA
Accenture employee's personal Claude agent ran on DOD network for two months, WIRED reports
Wired reports that an Accenture employee connected a personal Claude Code account to a secure Department of Defense network. The agent sent login credentials to a high-risk third-party website over two months.
Wired · according to anonymous sources, reported by WIRED
Rachel Laycock argues developers' caution about coding agents reflects hard-won experience, not fear of change
In an opinion piece, Rachel Laycock, CTO of Thoughtworks, argues that developer hesitation regarding coding agents reflects experience. She cited a weeklong experiment where agents wrote code that frequently failed its build.
Martin Fowler
Sent by the Observatory.