Speech generation model for controllable voice, narration, and audio delivery
GPT-Audio by openai is offered by 3 providers on this page. No official API price is listed for it; the prices below come from third-party channels. The lowest paid channel is Merge Gateway at $2.50 / $10.00 per 1M. That channel is a third-party gateway, so confirm its availability and rate limits before depending on it.
The context window is 128,000 tokens, with an output limit of 16,384 tokens. It supports tool use and structured output. Accepted input modalities are Text, Audio, and PDF. Its training knowledge cuts off at 2023-10-01.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Merge Gateway | Gateway | $2.50 | $10.00 | — | — | 128,000 | 16,384 | |
| Kilo Gateway | Gateway | $2.50 | $10.00 | — | — | 128,000 | 16,384 | |
| OpenRouter | Gateway | $2.50 | $10.00 | — | — | 128,000 | 16,384 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Price history accumulates from each data sync; currently only 1 sample(s) (2026-08-05). Each future sync adds a point, and once accumulated a line is drawn here.