Mistral: Rate Limit Exceeded (429)

The Mistral API has a tiered rate limit system with both RPM (requests per minute) and TPM (tokens per minute) caps that scale with the user's billing tier (Tier 1 through Tier 4). When either cap is exceeded, every subsequent request in that window returns a 429 response. This error appears both in direct API integrations and in third-party tools like LangChain, LiteLLM, and n8n that use the Mistral API.