Issues fixed:
- OpenRouter API key not recognized: _set_no_provider_error() now checks all 7
provider keys (was only checking Anthropic/OpenAI/Google), so users with only
OPENROUTER_API_KEY set no longer get "No API keys configured" error
- Error message now lists all 8 providers (added OpenRouter, Together, Fireworks)
instead of only 5 (Anthropic, OpenAI, Google, Ollama, LM Studio)
- gpt-4-turbo-preview (deprecated by OpenAI, 404 error) replaced with gpt-4o
as default OpenAI model in LLMClient init and generate() fallback
- Settings API model list updated: removed gpt-4-turbo-preview and o1-preview/mini,
added gpt-4.1, gpt-4.1-mini, o3-mini
- .env.example comment updated to reference gpt-4o instead of gpt-4-turbo
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>