

Setup
- Get your API key from Settings > API Keys in the dashboard
- Point your tool at
proxy.tembo.io
Codex may store credentials in
~/.codex/auth.json that override environment variables.gpt-5.4, gpt-5.4-mini, and gpt-5.4-nano. In OpenCode, the gpt-5.4-mini and gpt-5.4-nano aliases map to OpenAI’s gpt-5-mini and gpt-5-nano model IDs.
Proxy models
All models are tested across real-world coding work before being made available.
Tembo-managed Anthropic and Google models require no additional provider keys. Some OpenAI models require BYOK with your own OpenAI API key, and paid Tembo plans can use supported agent subscriptions such as Codex where available.