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GPT-6 Astra, Claude Fable 5.1 and Muse Spark 1.3 model profiles

Changelog

Feature Platform Cloud FrameworkUI, API, Code

In 0.24.0

Model ProvidersMetaAnthropic#3363#3351#3352

Three new models are available with full profiles (pricing, limits, modalities):

  • OpenAI GPT-6 Astra (gpt-6-astra), seeded as an enabled favorite. Its reasoning effort accepts a new max tier above xhigh.
  • Claude Fable 5.1 (claude-fable-5-1 and its 1M-context variant), seeded as enabled favorites with adaptive thinking.
  • Muse Spark 1.3 and its Contributor tier on the Meta Model API. Muse Spark 1.2 stays selectable.

New organizations get them on the Models page automatically.

See Providers, Meta and Anthropic. #3363, #3351, #3352