Pi

Open or create ~/.pi/agent/models.json and add Imbutus as a provider:

{
  "providers": {
    "imbutus": {
      "baseUrl": "https://imbutus.com",
      "api": "anthropic-messages",
      "apiKey": "<your-api-key>",
      "compat": {
        "supportsDeveloperRole": false,
        "supportsReasoningEffort": false
      },
      "models": [
        {
          "id": "huihui-ai/Huihui-Qwen3.5-9B-Claude-4.6-Opus-abliterated",
          "name": "huihui-ai/Huihui-Qwen3.5-9B-Claude-4.6-Opus-abliterated",
          "reasoning": false,
          "input": [
            "text"
          ]
        },
        {
          "id": "huihui-ai/Huihui-Qwen3.6-35B-A3B-Claude-4.7-Opus-abliterated",
          "name": "huihui-ai/Huihui-Qwen3.6-35B-A3B-Claude-4.7-Opus-abliterated",
          "reasoning": true,
          "input": [
            "text"
          ]
        },
        {
          "id": "huihui-ai/Huihui-Qwen3-Coder-Next-abliterated",
          "name": "huihui-ai/Huihui-Qwen3-Coder-Next-abliterated",
          "reasoning": false,
          "input": [
            "text"
          ]
        }
      ]
    }
  }
}

Pi reloads models.json each time you open the /model picker — no restart needed.