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Zen

Curated list of models provided by opencode.

opencode zen is a list of tested and verified models provided by the opencode team.

Zen works like any other provider in opencode. You login to opencode zen and get your API key. It’s completely optional and you don’t need to use it to use opencode.

Background

There are a large number of models out there but only a few of these models work well as coding agents. Additionally, most providers are configured very differently; so you get very different performance and quality.

So if you are using a model through something like OpenRouter, you can never be sure if you are getting the best version of the model you want.

To fix this, we did a couple of things:

  1. We tested a select group of models and talked to their teams about how to best run them.
  2. We then worked with a few providers to make sure these were being served correctly.
  3. Finally, we benchmarked the combination of the model/provider and came up with a list that we feel good recommending.

opencode zen is an AI gateway that gives you access to these models.

How it works

opencode zen works like any other provider in opencode.

  1. You sign in to opencode zen and get your API key.
  2. You run opencode auth login and select opencode zen and add your API key.
  3. Run /models in the TUI to see the list of models we recommend.

You are charged per request and you can add credits to your account.

Goals

We created opencode zen to:

  1. Benchmark the best models/providers for coding agents.
  2. Have access to the highest quality options and not downgrade performance or route to cheaper providers.
  3. Pass along any price drops by selling at cost; so the only markup is to cover our processing fees.
  4. Have no lock-in by allowing you to use it with any other coding agent. And always let you use any other provider with opencode as well.

Pricing

Below are the models that we currently support and their prices per 1M tokens.

ModelInputOutput
Qwen3 Coder 480B$0.38$0.50
Grok Code Fast 1FreeFree
Sonnet 4SoonSoon

A couple of notes:

  • These are the raw prices based on the provider we are using internally. We charge a small markup on top of this to cover our processing fees.
  • Grok Code Fast 1 is currently free on opencode till Sep 10th. The xAI team is using this time to collect feedback and improve Grok Code.

Contact us if you have any questions.