Morning brief

Friday, June 12

1 people · 0 companies · 5 topics

TL;DR Claude Fable 5 (Anthropic’s first public Mythos-class model) launched June 9 and is being rapidly plumbed into the toolchain; two more Claude Code patches landed today, including an enterprise model-lockdown setting. OpenAI’s TanStack-breach cert revocation deadline hits today for macOS users.

Models & research

  • Anthropic’s model-releases milestone: claude-code stack now ships with Claude Fable 5 (released June 9), a Mythos-class model with 1M context and 128k output, scoring 95% on SWE-bench Verified at $10/$50 per million tokens. Free on Pro/Max/Team through June 22, then shifts to usage credits. Anthropic · TechCrunch
  • OpenAI’s macOS code-signing certs — compromised in May’s TanStack npm supply-chain attack — are fully revoked today; ChatGPT Desktop, Codex App, and Atlas won’t launch on unpatched Macs. OpenAI · 9to5Mac

People

  • bcherny told Fortune he hasn’t written a line of code by hand in 8 months; Claude Code now writes, reviews, and security-scans itself, and has begun generating feature ideas from GitHub issues and Slack. Fortune

Tools & dev

  • claude-code v2.1.175 (today, 04:23 UTC) adds enforceAvailableModels managed setting — when on, the availableModels allowlist constrains the Default model and user/project settings can’t widen a managed list. GitHub
  • claude-code v2.1.174 (today, 01:16 UTC) adds usage attribution breakdown (cache misses, long context, subagents) to the Account & usage dialog; fixes enterprise Fable 5 credits banner and Bedrock GovCloud region handling. GitHub
  • claude-code v2.1.172 (June 10) enables nested sub-agents: agents can now spawn their own sub-agents up to 5 levels deep, with Bedrock reading AWS region from ~/.aws config when AWS_REGION isn’t set. GitHub

OSS

  • opencode v1.17.4 (today) adds cwd support for local MCP servers and fixes Gemini tool-schema handling, content-filtered model responses, and snapshot creation performance on large repos. GitHub
  • opencode v1.17.0 (June 10) was a bigger release: faster file search via fff-backed tools, WSL desktop support, improved MCP capabilities, and significant UI refinements across desktop and TUI. GitHub