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0.64.0
June 9, 2026

Claude Fable 5

Claude Fable 5

Claude Fable 5, Anthropic's newest and most powerful model, is now available in Conductor.

Give it a shot and let us know what you think!

Improvements

  • Added env file settings for loading agent environment variables from parsed env files at user, repository, and local repository scopes. Loaded variables appear in the environment variable list with env-file source indicators.

Fixes

  • Fixed an issue where reloading Conductor on a workspace page could show a blank screen.

New in 0.64.1

  • Fixed model picker row highlighting so only the selected model is marked as selected.
  • Fixed wheel scrolling in the dispatcher model picker.

New in 0.64.2

  • Fixed Claude Fable 5 sessions showing a 200k context window instead of 1M.
  • Added Ultracode effort to Claude Fable 5