GPT Realtime: API pricing, providers and specs
GPT Realtime is a text model by OpenAI. 2 providers serve it, from $16 to $16 /1M; the lowest price is at FastRouter.
How GPT Realtime compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $16 /1M, its lowest price is above 93% of comparable models (median $1.10).
- Its 32K-token context window is larger than 5% of them (median 262K), about 50 pages of text.
- 2 providers serve it; 36% of comparable models have fewer.
GPT Realtime prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| DevPass (LLM Gateway) | $4/1M | From$16/1M | $0.40/1M | — |
 FastRouter | $4/1M | $16/1M | $0.40/1M | 32K |
- FastRouter$16
- DevPass (LLM Gateway)From$16
Specs
- Type
- Text
- Maker
- OpenAI
- Inputs
- Audio, Image, Text
- Outputs
- Audio, Text
- Context
- 32K≈ 50 pages of text
- Max output
- 4K
- Capabilities
- Prompt caching, Vision
- Released
- Aug 28, 2025
- License
- proprietary
- Open weights
- No, API only
Alternatives to GPT Realtime
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| GPT Realtimethis model | $16/1M | 32K | — | 2 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
 Muse Wonder | $16/1M | 1.05M | — | 14 |
| Claude Opus 5.5 | $16/1M | 1M | 1807 | 33 |
| Claude Sonnet 5.5 | $8/1M | 1M | 1767 | 32 |
| Claude-Sonnet-3.5 | $15/1M | — | 1298 | 1 |
| Claude Opus 5 | $20/1M | 1M | 1690 | 32 |
| Claude Sonnet 4.6 | $12/1M | 1M | 1523 | 31 |
More from OpenAI
GPT Realtime FAQ
The lowest price for GPT Realtime is $16 /1M, at FastRouter.
FastRouter, at $16 /1M. 2 providers serve GPT Realtime; the table above lists every one with its price.
GPT Realtime reads up to 32K tokens per request and writes up to 4K.
No. GPT Realtime is only available through an API; OpenAI does not publish its weights.
2 API providers serve GPT Realtime. Compare their prices above, or open a provider to see everything it offers.
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