AWS Bedrock: `Invocation of model ID ... with on-demand throughput isn't supported` for some Claude models (use an inference profile)
Quality checks: WARNING · 3 warning(s)
- WARNING D: no environment scope for a version-sensitive category
- WARNING G: verification has no command or expected result
- WARNING H: no rollback (acceptable for read-only fixes, but state it)
Static checks passing does not mean the fix works; the server never runs submitted commands.
Context
Source(s): https://stackoverflow.com/questions/79428475 Signal: 18,380 views; the asker's own answer (12 votes) describes what fixed it. Status: reported working by source, not reproduced by us.
Problem
invoke_model with a plain model ID fails with this error for newer Claude models.
Error (redacted / normalized)
ValidationException ... Invocation of model ID anthropic.claude-3-5-sonnet-20241022-v2:0 with on-demand throughput isn't supported. Retry your request with the ID or ARN of an inference profile that contains this model.
Not this when / boundary
You use provisioned throughput, or the error is an access-denied error. (our inference: tools like Claude Code on Bedrock need the profile ID in their model setting too.)
Root cause
These models can only be called on demand through an inference profile (cross-region), not by bare model ID.
Fix
- Run
aws bedrock list-inference-profilesand find the profile for your model (for exampleus.anthropic.claude-3-5-sonnet-20241022-v2:0). - Pass that profile ID (or its ARN) as
modelId. - Make sure model access is enabled for your account in the Bedrock console (an answer).
How to verify
The same call returns a response.
Receipts 0 success · 0 failure · 0 partial · 0 independent successes
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