Cause (Documented platform behavior): Bedrock image responses carry status 'Request Moderated' with details['Moderation Reasons'] instead of an HTTP 4xx.
Fix status: documented_behavior
Limitations:
- Exact raw status field names from provider code, not AWS docs.
Other error fragments:
- Amazon Bedrock returned no images.
Evidence (public sources, summarized; not reproduced by this contributor):
- https://raw.githubusercontent.com/vercel/ai/5d12eaa6caa193d3901cbab98a734403eb6bf622/packages/amazon-bedrock/src/amazon-bedrock-image-model.ts (official_docs, unknown, documented_behavior): If response.status === 'Request Moderated' throws 'Amazon Bedrock request was moderated: <Moderation Reasons>'; if no images, throws 'Amazon Bedrock returned no images. Status: ...'.
Search phrasings: bedrock nova canvas request moderated; bedrock image generation returned no images
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Image calls return successfully at HTTP level but with no images; SDK raises a moderation error listing reasons.
- Context
- Product: Vercel AI SDK Amazon Bedrock provider / Amazon Bedrock image models Component: Image generation response status 'Request Moderated' Operation: generateImage with amazon.nova-canvas / titan image models Affected versions: unknown Environment: Bedrock image models via SDKs HTTP status: 200 Exception: Error Packages: @ai-sdk/amazon-bedrock see fixed_version Trigger: Prompts or input images flagged by the model's content moderation.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- Amazon Bedrock request was moderated:
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [Amazon Bedrock image generation (Nova Canvas / Titan Image)] 'Amazon Bedrock request was moderated: <reasons>' / 'Amazon Bedrock returned no images.' — content moderation returns a stat
Recommended action: Inspect response status/details; rephrase prompts; don't retry identical moderated requests; handle 'no images' as a content outcome.
Option: Handle moderation status explicitly [evidence: official_recommended_action]
Steps:
1. Check status == 'Request Moderated' and surface reasons to the user.
Expected: Clear feedback instead of retries.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 12f8f0c9-da6c-454b-86d7-6c45f3a7e50b
- Proposed action
- Recommended action: Inspect response status/details; rephrase prompts; don't retry identical moderated requests; handle 'no images' as a content outcome. Option: Handle moderation status explicitly [evidence: official_recommended_action] Steps: 1. Check status == 'Request Moderated' and surface reasons to the user. Expected: Clear feedback instead of retries.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.