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---
title: Zen
description: Curated list of models provided by opencode.
---
import config from "../../../config.mjs"
export const console = config.console
export const email = `mailto:${config.email}`
opencode zen is a list of tested and verified models provided by the opencode team.
:::note
opencode zen is currently in beta.
:::
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.
:::tip
We tested a select group of models and providers that work well with opencode.
:::
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 **<a href={console}>opencode zen</a>**, add your billing
details, and copy your API key.
2. You run `opencode auth login`, select opencode, and paste 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.
---
## Endpoints
You can also access our models through the following API endpoints.
| Model | Mode ID | Endpoint | AI SDK Package |
| ---------------- | ---------------- | --------------------------------------------- | --------------------------- |
| GPT-5 | gpt-5 | `https://opencode.ai/zen/v1/responses` | `@ai-sdk/openai` |
| Claude Sonnet 4 | claude-sonnet-4 | `https://opencode.ai/zen/v1/messages` | `@ai-sdk/anthropic` |
| Claude Haiku 3.5 | claude-3-5-haiku | `https://opencode.ai/zen/v1/messages` | `@ai-sdk/anthropic` |
| Claude Opus 4.1 | claude-opus-4-1 | `https://opencode.ai/zen/v1/messages` | `@ai-sdk/anthropic` |
| Qwen3 Coder 480B | qwen3-coder | `https://opencode.ai/zen/v1/chat/completions` | `@ai-sdk/openai-compatible` |
| Grok Code Fast 1 | grok-code | `https://opencode.ai/zen/v1/chat/completions` | `@ai-sdk/openai-compatible` |
| Kimi K2 | kimi-k2 | `https://opencode.ai/zen/v1/chat/completions` | `@ai-sdk/openai-compatible` |
---
## Pricing
We support a pay-as-you-go model. Below are the prices **per 1M tokens**.
| Model | Input | Output | Cached Read | Cached Write |
| ------------------------------- | ------ | ------ | ----------- | ------------ |
| Qwen3 Coder 480B | $0.45 | $1.50 | - | - |
| Grok Code Fast 1 | Free | Free | Free | - |
| Claude Sonnet 4 (≤ 200K tokens) | $3.00 | $15.00 | $0.30 | $3.75 |
| Claude Sonnet 4 (> 200K tokens) | $6.00 | $22.50 | $0.60 | $7.50 |
| Claude Haiku 3.5 | $0.80 | $4.00 | $0.08 | $1.00 |
| Claude Opus 4.1 | $15.00 | $75.00 | $1.50 | $18.75 |
| GPT 5 | $1.25 | $10.00 | $0.125 | - |
| Kimi K2 | $0.60 | $2.50 | - | - |
:::note
Credit card fees are passed along at cost; we don’t charge anything beyond that.
:::
Grok Code Fast 1 is currently free on opencode for a limited time. The xAI team is using this time to collect feedback and improve Grok Code.
:::tip
Subscription plans and a free tier are coming soon.
:::
<a href={email}>Contact us</a> if you have any questions.
---
## Privacy
All our models are hosted in the US. Our providers follow a zero-retention policy and do not use your data for model training, with the following exceptions:
- Grok Code Fast 1: During its free period, collected data may be used to improve Grok Code.
- OpenAI APIs: Requests are retained for 30 days in accordance with [OpenAI's Data Policies](https://platform.openai.com/docs/guides/your-data).
- Anthropic APIs: Requests are retained for 30 days in accordance with [Anthropic's Data Policies](https://docs.anthropic.com/en/docs/claude-code/data-usage).
---
## 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.
|
