aiqbench analysis
This asynchronous API enables significant cost reduction by bundling inference requests, allowing providers to process large workloads like embedding back-filling or corpus labeling at approximately half the standard per-token price. While median completion times are rapid (around 7 minutes), latency varies notably based on submission time of day, with off-peak hours offering faster turnaround than early morning slots.
Batch API: half-price inference by bundling requests

Send a whole workload in one POST, collect the results within 24 hours, and typically pay half the per-token price. Across 230k+ batches that completed over our two week beta period, the median finished in 7 minutes.
For large batches of work or requests that don’t need to be completed immediately, you can now use the new batch API. When submitting a batch, a provider gets to choose when during a 24 hour window they will complete the request, and in exchange they generally charge 50% (and sometimes less) of their normal per-token…
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