Reference
Rate limits
Request budget behavior
Authenticated responses include request-budget headers when rate limiting is configured:
X-RateLimit-Limit: 120
X-RateLimit-Remaining: 119
X-RateLimit-Reset: 1780080000When a key exceeds its budget, the API returns 429 Too Many Requests with the standard error envelope and retryable: true.
Avoid aggressive polling. Prefer SSE streaming for user-interface workflows that need live progress.