Anthropic Acquires Stainless, Google I/O Kicks Off with Gemini CLI
Anthropic has purchased Stainless, a platform for SDK development utilized by OpenAI, and plans to discontinue its operations. During a conference in London, Anthropic unveiled self-hosted sandboxes and MCP tunnels designed for Claude Managed Agents. Today marks the start of Google I/O, where Logan tweeted, "The model is the product." Speculations indicate that the new Gemini model performs similarly to GPT-5.5. Cursor has launched Composer 2.5, which was trained using SpaceX's GPUs, achieving benchmarks akin to Opus 4.7-xhigh and GPT-5.5-high. Cloudflare's evaluation of Anthropic's Mythos revealed its proficiency in identifying chained vulnerabilities. OpenAI's Codex now facilitates connections between Mac and mobile devices. Ken Griffin from Citadel has recognized the influence of AI on automation in high-skilled jobs, alongside updates on Coatue's AI framework transition and new tools like Devin Auto-Triage and Motus Tracing.
Key facts
- Anthropic acquires Stainless, an SDK platform used by OpenAI, and shuts it down.
- Anthropic adds self-hosted sandboxes and MCP tunnels to Claude Managed Agents at London conference.
- Google I/O starts today; Logan tweets 'The model is the product.'
- Rumors: latest Gemini model scores similar to GPT-5.5 on benchmarks.
- Cursor's Composer 2.5, trained on SpaceX's GPUs, matches Opus 4.7-xhigh and GPT-5.5-high at lower cost.
- Cloudflare tests Anthropic's Mythos on 50 repos; finds it good at spotting chained vulnerabilities.
- OpenAI's Codex now connects Mac to phone; work runs on Mac/devbox/remote machine.
- Ken Griffin (Citadel) now says AI automates high-skilled jobs.
- Coatue shifts AI framework from 'follow the GPU' to 'follow the gigawatt.'
- Linear Agent can read codebases directly.
- Devin Auto-Triage monitors bugs, alerts, and incidents.
- Browse.sh from Browserbase: open-source catalogue of agent skills.
- Watchmen: local, open-source skill files from past sessions.
- Motus Tracing: open-source observability for AI agents.
- designmd.sh: public registry for DESIGN.md files.
- Jason Liu shares daily primitives for Codex.
- Taste MCP beta: portable design preferences for Codex, Cursor, Claude Code.
- Claire Vo and Thariq discuss 'HTML is the new markdown.'
- Brian Lovin's Notion Worker syncs X follows into Notion with AI enrichment.
- Benedict Evans releases 'AI Is Eating The World' deck.
Entities
Institutions
- Anthropic
- Stainless
- OpenAI
- Cursor
- SpaceX
- Cloudflare
- Citadel
- Coatue
- Browserbase
- Notion
- Motus Tracing
- Taste MCP
- Devin
- Linear Agent
- Watchmen
- Browse.sh
- designmd.sh
- Ben's Bites
- X
- YouTube
- Hyperagent
- Airtable
Locations
- London
- United Kingdom