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Tembo Max
Tembo Max gives you access to all coding agents and models through a single subscription. Connect your local tools to Tembo’s proxy with one API key, no separate provider accounts needed. Available on all plans, including the free tier. Read more about Tembo Max. BYOK is also available on all plans from Settings -> Models -> API Keys. Paid Tembo plans can connect supported agent subscriptions, including Codex, from Settings -> Connected accounts -> LLM subscriptions.

Setup

  1. Get your API key from Settings > API Keys in the dashboard
  2. Point your tool at proxy.tembo.io
Codex may store credentials in ~/.codex/auth.json that override environment variables.
Codex and OpenCode both support 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.

Pricing

See tembo.io/pricing for plans and credits.

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