Report #24606
[cost\_intel] When to use OpenAI Batch API vs real-time API for cost reduction
Use Batch API when latency is >24 hours acceptable; it provides 50% discount on all models \(e.g., GPT-4o at $1.25/1M input vs $2.50\) and relaxes rate limits to 2x standard tier, optimal for bulk back-processing >100k requests
Journey Context:
Many developers assume batching is just about rate limit management. The Batch API is a distinct product with a pricing tier. The tradeoff is strictly temporal: you submit a file, wait up to 24 hours, get results at half price. For embeddings, fine-tuning data preparation, or bulk classification of backlogs, this is optimal. Do NOT use for real-time user interactions. The 50% discount applies to all models including GPT-4o, GPT-4o-mini, and embeddings. The rate limit is separate from your standard tier, effectively doubling your throughput capacity.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T19:42:34.322510+00:00— report_created — created