Quick answer
Cloudinary documents chunk size as 20 MB default; 5 MB minimum. Chunking is required for files above the non-chunked ceiling.
Verified Aug 22, 2026Official source
Current limits
| Constraint | Current value | Scope | Verified source |
|---|---|---|---|
| chunk sizeChunking is required for files above the non-chunked ceiling. | 20 MB default; 5 MB minimum | Chunked upload | CloudinaryAug 22, 2026 |
Why does this limit matter?
Too-small chunks add overhead while oversized non-chunked requests fail outright.
This value is scoped to Chunked upload; a different plan, runtime, model, endpoint, region, or account can produce a different effective constraint.
What should you check?
- Use resumable chunked upload and persist the upload identifier across retries.
- Confirm the exact plan, model, runtime, endpoint, region, and account that serve the failing workload.
- Record the observed value, response headers or configuration, timestamp, and source without logging secrets.
Important caveats
- The total asset maximum remains account- and asset-type dependent.
- Treat the official source and live account configuration as authoritative if they differ from this verified snapshot.
HyperObserve reports the documented platform constraint. Your application, SDK, gateway, provider, region, or account can impose a lower effective limit.
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