Quick answer
Grok documents grok app file size as Most supported files: up to 150 MB each. Documents, images, code, and audio use this general app allowance; behavior can vary by platform or subscription.
Verified Aug 22, 2026Official source
Current limits
| Constraint | Current value | Scope | Verified source |
|---|---|---|---|
| Grok app file sizeDocuments, images, code, and audio use this general app allowance; behavior can vary by platform or subscription. | Most supported files: up to 150 MB each | Grok website and apps | xAIAug 22, 2026 |
Why does this limit matter?
The consumer app and Files API have different upload ceilings and should not be conflated.
This value is scoped to Grok website and apps; a different plan, runtime, model, endpoint, region, or account can produce a different effective constraint.
What should you check?
- Confirm the surface, subscription, file type, and byte size before upload.
- 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
- Very long files may be summarized or handled in sections even below the byte limit.
- 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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