Add new/custom AI models to opencode.json. Use proactively for bleeding-edge releases, non-standard providers, self-hosted models, or custom endpoints.
Examples:
- user: "Add the new Claude 4.5" → websearch for API specs, add provider entry with baseUrl, verify model ID format
- user: "Use my local Ollama instance" → configure custom provider with http://localhost:11434, set model ID format
- user: "Configure this OpenAI-compatible proxy" → add provider with custom baseUrl, set apikey env var, verify compatibility
- user: "Model X just released, add it" → research provider documentation, find model ID and capabilities, add to config