Stability AI API 429 Too Many Requests
Workaround available Stability AI API Updated November 14, 2026Based on 2 user reportsHow we research
Quick answer
Stability's API allows 150 requests per 10 seconds; going over returns 429 and a 60-second timeout. Throttle and back off.
Most likely fix: Throttle and back off
How to fix it
Try these in order — the most common fix is first.
1. Throttle and back off
- Cap concurrency so you stay under 150 requests per 10 seconds
- On 429, wait at least 60 seconds before retrying
- Use exponential backoff with jitter
Did this fix it?2. Spread the load
- Queue jobs instead of firing them at once
- Contact Stability AI for higher limits if you need sustained volume
Did this fix it?
Symptoms
Requests fail with HTTP 429 and keep failing for about a minute.
Why it happens
- Bursts above 150 requests per 10 seconds
- Parallel workers or retry storms sharing one API key
This guide also covers
- stability ai api 429
- stability ai rate limit
- stable diffusion api too many requests
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