The Brief

New briefs daily around 7 AM Eastern

Route agent choices through OpenAI's Decisions API, not chat calls

OpenAI opened the Decisions API in public beta. Backed by GPT-6 Luna, it answers yes/no, multiple choice and score questions over text or images, and OpenAI claims up to 10x faster responses than the Responses API.

• 01Read

  Mistral releases Large 4, a 1T-parameter MoE with weights due in October

  Mistral opened API preview access to Large 4, a multimodal mixture-of-experts model with 1T total and 49B active parameters. Open weights are due at the end of October; Artificial Analysis scores it 38 on its Intelligence Index.

  mistral.ai→Mistral Large 4 ships via API, open weights due end of October→ArtificialAnlys→Mistral Large 4 pitched as a top model for cybersecurity work→
• 02Read

  GitHub rebuilds Git storage for agent load after 7.38B September commits

  GitHub says agent-driven development is straining Spokes, where every replica joins each write. It reported 7.38 billion commits in September and plans to separate durability from read scale.

  Brian Celenza→GitHub→
• 03Read

  Google DeepMind releases EmbeddingGemma 2, a 740M multimodal embedder

  EmbeddingGemma 2 is a 740M-parameter Apache 2.0 embedding model on the Gemma 4 architecture. It maps text, code, images, audio and video into one shared space for on-device search and RAG.

  deepmind.google→blog.google→
• 04Try

  Placebo test finds 2 of 9 popular Claude Code skills help

  A placebo-controlled test ran nine top-starred Claude Code skills on SWE-bench Verified, Terminal-Bench and TBLite. Only two beat neutral text of the same length, one did worse, and none lowered cost.

  simonether→
• 05Read

  Anthropic opens three verified tiers for reduced cyber safeguards

  Anthropic merged Project Glasswing and its Cyber Verification Program into three tiers for verified security professionals. Defense and Red Team tiers unlock authorized pentesting on its top models; physical-harm actions stay blocked.

  Anthropic editorial sitemap→
• 06Read

  Claude adds in-place editing inside Google Docs, Sheets and Slides

  Claude for Google Workspace is in beta on all paid plans. A sidebar in Docs, Sheets and Slides reads the open file and proposes edits for approval, using the user's connectors and skills.

  claudeai→Claude→