What this model error usually means
OpenAI: GPT-3.5 Turbo 16k returning 429 / model rate limited means you should first confirm whether model ID openai/gpt-3.5-turbo-16k is visible for this OpenAI key, then separate permission, context, capability, rate limit, or route issues.
- Model: openai/gpt-3.5-turbo-16k
- Provider: OpenAI
- Status code: 429