OpenCode Zen
Pay-as-you-go AI gateway from the OpenCode team that serves a curated list of coding models it has tested and benchmarked for coding agents, through one API key usable in OpenCode or any other agent, billed per request at provider cost.
Find alternatives to OpenCode Zen
What it does
- Model inference
Sources
- Pricing
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Official documentation · 11 Oct 2026
"We support a pay-as-you-go model. Below are the prices per 1M tokens." Zen page: "pay per request with zero markups", $20 top-ups with a $1.23 processing fee and auto-reload at $5. Some listed models carry a Free rate, several for a limited time; using Zen starts with a $20 balance, so no recurring free tier is recorded.
- Description
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Official documentation · 11 Oct 2026
"OpenCode Zen is an AI gateway that gives you access to these models." "You are charged per request and you can add credits to your account." Zen FAQ: "you can use Zen with any agent."
- What it does
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Official documentation · 11 Oct 2026
Hosted endpoints such as https://opencode.ai/zen/v1/chat/completions and /zen/v1/responses serve each listed model.
- Sold within
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Official documentation · 11 Oct 2026
Bought directly by self-serve signup: "Sign up and add $20 balance"; "Use with any agent. Set monthly spend limits. Cancel any time."
- Name
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Official documentation · 11 Oct 2026
"Zen gives you access to a curated set of AI models that OpenCode has tested and benchmarked specifically for coding agents."
- URL
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Official documentation · 11 Oct 2026
Product page "OpenCode Zen | A curated set of reliable optimized models for coding agents", in the site menu as Zen.
- Deployment
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Official documentation · 11 Oct 2026
Hosted API endpoints run by OpenCode; "All our models are hosted in the US and EU."
- Interfaces
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Official documentation · 11 Oct 2026
"You can also access our models through the following API endpoints" (OpenAI- and Anthropic-compatible paths under https://opencode.ai/zen/v1/), with an API key.
- Intended for
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Official documentation · 11 Oct 2026
For developers running coding agents; workspaces with roles and spend limits for teams.
Also from OpenCode
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OpenCode AI agent
Open-source AI coding agent for terminal, IDE and desktop, supporting Claude, GPT and Gemini, with LSP integration, multi-session support and shareable session links; free models included or bring your own provider, with an optional paid "Zen" service for vetted coding models.
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OpenCode Go API service
Monthly subscription from OpenCode giving rate-limited access to a curated line-up of open-source coding models tested for agentic coding, at $10 for Go and $40 for Go Plus, with an API key that works in OpenCode or other agents.
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