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Speech-to-speech
GPT Realtime
OpenAI's low-latency speech-to-speech models for the Realtime API, including translation.
By OpenAI.
Versions
9 versions
| Model | Maker | Kind | Released | Context | Input $/1M | Output $/1M |
|---|---|---|---|---|---|---|
| GPT-Realtime-2.1GPT Realtime | OpenAI | Speech-to-speech | 6 Jul 2026 | 128K | $4.00 | $24.00 |
| GPT-Realtime-2.1 miniGPT Realtime | OpenAI | Speech-to-speech | 6 Jul 2026 | 128K | $0.60 | $2.40 |
| GPT-Realtime-2GPT Realtime · Legacy | OpenAI | Speech-to-speech | 7 May 2026 | 128K | $4.00 | $24.00 |
| GPT-Realtime-TranslateGPT Realtime | OpenAI | Speech-to-speech | 7 May 2026 | 16K | — | — |
| GPT-Realtime-1.5GPT Realtime · Legacy | OpenAI | Speech-to-speech | 23 Feb 2026 | 32K | $4.00 | $16.00 |
| GPT-Realtime miniGPT Realtime · Deprecated | OpenAI | Speech-to-speech | 6 Oct 2025 | 32K | $0.60 | $2.40 |
| GPT-RealtimeGPT Realtime · Deprecated | OpenAI | Speech-to-speech | 28 Aug 2025 | 32K | $4.00 | $16.00 |
| GPT-4o mini Realtime (preview)GPT Realtime · Retired | OpenAI | Speech-to-speech | 17 Dec 2024 | 16K | $0.60 | $2.40 |
| GPT-4o Realtime (preview)GPT Realtime · Retired | OpenAI | Speech-to-speech | 1 Oct 2024 | 32K | $5.00 | $20.00 |
- GPT-Realtime-2.1OpenAI · 6 Jul 2026 · 128K context$4.00in / 1M
- GPT-Realtime-2.1 miniOpenAI · 6 Jul 2026 · 128K context$0.60in / 1M
- GPT-Realtime-2OpenAI · 7 May 2026 · 128K context$4.00in / 1M
- GPT-Realtime-TranslateOpenAI · 7 May 2026 · 16K context—in / 1M
- GPT-Realtime-1.5OpenAI · 23 Feb 2026 · 32K context$4.00in / 1M
- GPT-Realtime miniOpenAI · 6 Oct 2025 · 32K context$0.60in / 1M
- GPT-RealtimeOpenAI · 28 Aug 2025 · 32K context$4.00in / 1M
- GPT-4o mini Realtime (preview)OpenAI · 17 Dec 2024 · 16K context$0.60in / 1M
- GPT-4o Realtime (preview)OpenAI · 1 Oct 2024 · 32K context$5.00in / 1M