Runway INTERNAL.BAD_OUTPUT.01: fix the prompt, then resubmit

Runway's INTERNAL.BAD_OUTPUT.01 may succeed after prompt fixes. Sume's equivalent step: inspect job events, fix the input, and send a new request.

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Runway says INTERNAL.BAD_OUTPUT.* marks a generation its internal systems rejected for quality or system-error reasons, most often .01, and that a retry may succeed if you correct the prompt. On Sume the matching step for a generation_rejected job is to read the job events, change the unsupported input, and submit a new request with a new Idempotency-Key.

Runway text is from its Dev docs and Sume text from Errors and rate limits, both read 2026-10-01.

What causes INTERNAL.BAD_OUTPUT.01 on Runway?

The page lists three common causes: logos, watermarks or overlaid text in input media; a prompt that explicitly asks for text generation; and a prompt that asks for a media prompt to be written instead of giving one directly, such as "write a prompt for...".

What does Sume tell you for a rejected generation?

The job error category generation_rejected has the documented next action "Inspect events and fix unsupported input". The machine-readable next_action field takes a fixed set of values, so your code can branch without reading text.

Fields for deciding the next step, from the Sume docs, read 2026-10-01.
Field or routeUse
category: generation_rejectedInspect events and fix unsupported input
next_actionOne of authenticate, fix_input, add_funds, retry_later, poll_status, inspect_events, contact_support
GET /v1/jobs/:id/eventsThe event trail for one job
messageFor humans; may change, never match on it

Why does a corrected resubmit need a new key?

An Idempotency-Key is tied to a request body. The Formats errors page says a key reused with a different body returns 409 idempotency_conflict, "do not retry as is". After you change the prompt, you are making a different request, so mint a new key. See failed run retry needs a new key.

Does Sume list the same prompt mistakes?

No. The sources I read do not list causes for generation_rejected, and they do not claim it maps to Runway's codes. Treat the events as the evidence, and do not copy Runway's list as Sume's rules. For another provider's moderation field, see Flux moderation versus Sume rejection.

Sources

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