Providers
Model providers and plans supported by Letta Code
Letta Code supports a wide variety of LLM providers, as well as coding plans such as ChatGPT and zAI.
To connect additional providers, use /connect in the CLI.
To see your available models, use /model.
Local providers are configured on your machine. If you’re logged into Constellation, /connect also lets you configure providers for agents hosted in Constellation.
Constellation providers are managed through Constellation’s LLM gateway. Constellation supports a smaller provider set than local mode; local inference providers like LM Studio, Ollama, and llama.cpp are available only in local mode. You can pay for LLM gateway usage with pay-as-you-go credits from the usage page.
| Provider | Local support | Constellation |
|---|---|---|
| Amazon Bedrock | AWS credentials | AWS credentials |
| Anthropic API | API key | API key |
| Claude Pro/Max | Subscription | — |
| Azure OpenAI Responses | API key | — |
| Cerebras | API key | — |
| ChatGPT Plus/Pro Codex | Subscription | Subscription |
| Cloudflare AI Gateway | API key | — |
| Cloudflare Workers AI | API key | — |
| DeepSeek | API key | — |
| Fireworks | API key | — |
| GitHub Copilot | Subscription | — |
| Google Gemini | API key | API key |
| Google Vertex AI | API key | — |
| Groq | API key | — |
| Hugging Face | API key | — |
| Kimi Code | API key | API key |
| llama.cpp | Local endpoint | — |
| LM Studio | Local endpoint | — |
| MiniMax | API key or coding plan | API key or coding plan |
| MiniMax (China) | API key | — |
| Mistral | API key | — |
| Moonshot AI | API key | API key |
| Moonshot AI (China) | API key | — |
| Ollama | Local endpoint | — |
| Ollama Cloud | API key | — |
| OpenAI API | API key | API key |
| OpenCode Go | API key | — |
| OpenCode Zen | API key | — |
| OpenRouter | API key | API key |
| Together AI | API key | — |
| Vercel AI Gateway | API key | — |
| xAI | API key | — |
| Xiaomi MiMo | API key | — |
| Xiaomi MiMo Token Plan (Amsterdam) | Token plan | — |
| Xiaomi MiMo Token Plan (China) | Token plan | — |
| Xiaomi MiMo Token Plan (Singapore) | Token plan | — |
| zAI API | API key | API key |
| zAI Coding Plan | Coding plan | Coding plan |