# GPT-6 Astra, Claude Fable 5.1 and Muse Spark 1.3 model profiles > Everruns adds model profiles for OpenAI GPT-6 Astra, Claude Fable 5.1 and Muse Spark 1.3, seeds them for new organizations and covers them in live tests. Source: Date: 2026-09-04 Products: Platform, Cloud, Framework Category: Feature Available: In 0.24.0 Pull request: everruns/everruns#3363 Pull request: everruns/everruns#3351 Pull request: everruns/everruns#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](https://everruns.com/docs/providers/), [Meta](https://everruns.com/docs/providers/meta/) and [Anthropic](https://everruns.com/docs/providers/anthropic/). [#3363](https://github.com/everruns/everruns/pull/3363), [#3351](https://github.com/everruns/everruns/pull/3351), [#3352](https://github.com/everruns/everruns/pull/3352)