Phoenix v13.10.0 introduces four new AI providers for the playground and makes project settings editable.
New playground providers#
Phoenix now supports Cerebras, Fireworks AI, Groq, and Moonshot (Kimi) as first-class providers in the playground. All four use OpenAI-compatible APIs — no new dependencies required.
| Provider | Environment Variable |
|---|---|
| Cerebras | CEREBRAS_API_KEY |
| Fireworks AI | FIREWORKS_API_KEY |
| Groq | GROQ_API_KEY |
| Moonshot (Kimi) | MOONSHOT_API_KEY |
Cost tracking is included out of the box with 298 new model entries across all four providers.
Editable project settings#
You can now edit a project’s description and gradient colors directly from the Project Settings tab.
Latest OpenAI models#
The playground model list now includes new OpenAI models:
gpt-5.4,gpt-5.4-pro(and date-stamped variants)gpt-5.3-chat-latestgpt-5.2-pro,gpt-5.2-pro-2025-12-11gpt-5-pro,gpt-5-chat, and date-stampedgpt-5,gpt-5-mini,gpt-5-nanovariantso3-pro-2025-06-10
UI improvements#
- Experiment recording indicator — The loading spinner during playground experiments has been replaced with a pulsing red recording icon and an elapsed timer
- Restyled Switch & Slider components — Improved dark mode contrast, smoother transitions, and a cleaner thumb ring on hover/focus