940 Succeeded, 45 Errored, 15 Expired — Resubmit Only the 60

Batch results are JSONL with per-request result.type: succeeded, errored, or expired. Each result includes custom_id for identification.

Selective Retry

With 1,000 requests: 940 succeeded, 45 errored, 15 expired. Selective resubmission of just 60 failures saves 94% versus resubmitting all 1,000.

Error Types Need Different Fixes

Blind retry without fixing root causes produces the same errors. Chunk the oversized documents before resubmitting. Fix the malformed inputs. Only transient failures (expired) can be retried as-is.

The Process

1. Parse JSONL results
2. Filter by result.type (errored/expired)
3. Match by custom_id to original requests
4. Categorize error types
5. Apply targeted fixes per category
6. Resubmit only the fixed failures as a new batch

One-liner: Parse batch results by status, match failures by custom_id, fix root causes per error type (chunk oversized, fix malformed, retry expired), and resubmit only the failures — not the whole batch.