Troubleshooting

"model ... not found in model_list" or OpenRouter "free is not a valid model ID"

Symptom: You see either:

• Error creating provider: model "openrouter/free" not found in model_list
• OpenRouter returns 400: "free is not a valid model ID"

Cause: PicoClaw now resolves provider/model in two steps:

• If provider is set, the model field is sent to that provider unchanged.
• If provider is omitted, PicoClaw infers the provider from the first / segment and sends everything after that first / as the runtime model ID.

For OpenRouter free-tier routing, the preferred config is explicit provider.

• Wrong: "model": "free" → no OpenRouter provider is selected, so free is not a valid OpenRouter model route.
• Right: "provider": "openrouter", "model": "free" → OpenRouter receives free.
• Also supported: "model": "openrouter/free" → provider resolves to openrouter, runtime model ID resolves to free.

Fix: In ~/.picoclaw/config.json (or your config path):

1. agents.defaults.model_name must match a model_name in model_list (e.g. "openrouter-free").
2. That entry should preferably set provider to openrouter, and model should be a valid OpenRouter model ID, for example:
   • "free" – auto free-tier
   • "google/gemini-2.0-flash-exp:free"
   • "meta-llama/llama-3.1-8b-instruct:free"

Example snippet:

{
  "agents": {
    "defaults": {
      "model_name": "openrouter-free"
    }
  },
  "model_list": [
    {
      "model_name": "openrouter-free",
      "provider": "openrouter",
      "model": "free",
      "api_keys": ["sk-or-v1-YOUR_OPENROUTER_KEY"],
      "api_base": "https://openrouter.ai/api/v1"
    }
  ]
}

Get your key at OpenRouter Keys.