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OpenCode is an open-source coding agent. Sail is OpenAI-compatible, so plugging it in is just a config change.

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Install

Follow the install instructions at opencode.ai. The most common path is: 
curl -fsSL https://opencode.ai/install | bash

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Get your API key

Sign up for Sail and create an API key.

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Configure

Create your OpenCode config with Sail as the default provider: 
mkdir -p ~/.config/opencode
Then put this in ~/.config/opencode/opencode.jsonc: 
{
  "$schema": "https://opencode.ai/config.json",
  "model": "sail/zai-org/GLM-5.1-FP8", // model for heavy lifting
  "small_model": "sail/openai/gpt-oss-120b", // model for lightweight tasks
  "provider": {
    "sail": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "https://api.sailresearch.com/v1",
        "apiKey": "YOUR_SAIL_API_KEY",
      },
      "models": {
        "zai-org/GLM-5.1-FP8": { "name": "GLM-5.1" },
        "openai/gpt-oss-120b": { "name": "gpt-oss-120b" },
        "MiniMaxAI/MiniMax-M2.7": { "name": "MiniMax-M2.7" },
        "google/gemma-4-31B-it": { "name": "Gemma 4 31B IT" },
      },
    },
  },
}
Replace YOUR_SAIL_API_KEY with the key you created above.

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Run

opencode
Once OpenCode is up, run /models and search “Sail” to switch between any of the models you listed in your config.

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Tips

  • What’s next — see OpenCode’s Usage guide.
  • New models — when Sail launches a new model, add it under provider.sail.models.