Render endpoints enforce two buckets per API key (per key, not per workspace) — both must pass:
| Tier | Burst | Per hour |
|---|---|---|
| Free | 60/min | 1,000 |
| Advanced / Pro | 60/sec | 1,000 |
| Enterprise | 100/sec | 15,000 |
Over a bucket → 429 too_many_requests. Sleep Retry-After seconds, then retry. Every response carries RateLimit-Limit / -Remaining / -Reset headers so you can pace ahead. For big batches, use /jobs instead of fanning out /generate.
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