Very long inputs
Choose GPT-Audio
GPT-Audio reads up to 128k tokens per request, against 16k for GPT-Realtime-Translate.
GPT-Audio vs GPT-Realtime-Translate: price, context and capabilities
Choose GPT-Audio for very long inputs. Choose GPT-Realtime-Translate for the latest release and the most recent knowledge.
In short
- A price comparison is not possible: one of them has no comparable published price.
- GPT-Audio reads more per request: 128k tokens against 16k.
- GPT-Realtime-Translate is the newer model (May 7, 2026, against Aug 28, 2025).
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Latest release
Choose GPT-Realtime-Translate
GPT-Realtime-Translate is the newer release (May 7, 2026, against Aug 28, 2025 for GPT-Audio).
Most recent knowledge
Choose GPT-Realtime-Translate
GPT-Realtime-Translate was trained on data up to September 2024, against October 2023 for GPT-Audio.
Specifications side by side
| GPT-Audio | GPT-Realtime-Translate | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Category | Voice and realtime | Voice and realtime |
| Status | Deprecated | Generally available |
| Headline price | No data | $0.034 / minute |
| Context window | 128k | 16k |
| Max output | 16k | 2k |
| Released | Aug 28, 2025 | May 7, 2026 |
| Knowledge cutoff | October 2023 | September 2024 |
| Licence | Proprietary | Proprietary |
| Capabilities | Audio input | Audio input |
| API model id | gpt-audio | gpt-realtime-translate |
Frequently asked questions
Should I choose GPT-Audio or GPT-Realtime-Translate?
Choose GPT-Audio for very long inputs. Choose GPT-Realtime-Translate for the latest release and the most recent knowledge.
Which is cheaper, GPT-Audio or GPT-Realtime-Translate?
A price comparison is not possible: one of them has no comparable published price.
Which has the larger context window, GPT-Audio or GPT-Realtime-Translate?
GPT-Audio reads more per request: 128k tokens against 16k.
What is the difference between GPT-Audio and GPT-Realtime-Translate?
GPT-Audio is made by OpenAI and GPT-Realtime-Translate by OpenAI. A price comparison is not possible: one of them has no comparable published price. GPT-Audio reads more per request: 128k tokens against 16k. GPT-Realtime-Translate is the newer model (May 7, 2026, against Aug 28, 2025).
Which is newer, GPT-Audio or GPT-Realtime-Translate?
GPT-Realtime-Translate was released on May 7, 2026 and GPT-Audio on Aug 28, 2025.