# gpt-realtime-2

> gpt-realtime-2 is a proprietary language model from OpenAI, released on 7 May 2026. It accepts text and audio and generates text and audio, with a 128K-token context window and up to 32K output tokens per response. As of 21 Oct 2026, the lowest listed API price is $4 per million input tokens and $24 per million output tokens (Vercel AI Gateway), across 1 provider we track.

Source page: https://www.aimodel.directory/models/gpt-realtime-2
Last verified: 21 Oct 2026

## Specifications

- **Developer:** OpenAI
- **Release date:** 7 May 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Weights:** Proprietary (API only) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Context window:** 128K (128,000 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Max output:** 32K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Knowledge cutoff:** 30 Sept 2024 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Input:** Text and audio (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Output:** Text and audio (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Reasoning mode:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-realtime-2.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Vercel AI Gateway | $4 | $24 | $0.40 | 128K |

## FAQ

### What is the context window of gpt-realtime-2?

gpt-realtime-2 has a context window of 128,000 tokens (128K) and can generate up to 32,000 tokens in a single response, according to models.dev.

### How much does the gpt-realtime-2 API cost?

gpt-realtime-2 is listed from $4 per million input tokens and $24 per million output tokens (Vercel AI Gateway). Prices last verified 21 Oct 2026.

### Is gpt-realtime-2 open source?

No. gpt-realtime-2 is a proprietary model; OpenAI has not released its weights. It is available through APIs including Vercel AI Gateway.

### When was gpt-realtime-2 released?

OpenAI released gpt-realtime-2 on 7 May 2026, according to models.dev.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "gpt-realtime-2", https://www.aimodel.directory/models/gpt-realtime-2