# C05 — Batch API

- Publisher: OpenAI
- Source: [Batch API](https://developers.openai.com/api/docs/guides/batch)
- Published: Not stated / not established
- Updated: Not stated / not established
- Accessed: 2026-10-22
- Type: Official implementation documentation
- Evidence: opened primary page; relevant content read.

## Paraphrased finding

Asynchronous batch processing has 50% lower model costs versus synchronous API with a 24-hour processing window. Expired jobs are explicitly possible.

## Limits

Not an interactive SLA or guarantee every request succeeds. Eligibility, result reconciliation and failed/expired items require handling.