What this model error usually means
OpenAI: GPT-4 Turbo (older v1106) returning 400 / model capability unsupported means you should first confirm whether model ID openai/gpt-4-1106-preview is visible for this OpenAI key, then separate permission, context, capability, rate limit, or route issues.
- Model: openai/gpt-4-1106-preview
- Provider: OpenAI
- Status code: 400