# Deep Research Preview (Apr-21-2026)

> Deep Research Preview (Apr-21-2026) is a proprietary language model from Google DeepMind, released on 21 Apr 2026. It accepts text, images, video, audio and PDFs and generates text and images, with a 131K-token context window and up to 66K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2 per million input tokens and $12 per million output tokens (Gemini API), across 1 provider we track.

Source page: https://www.aimodel.directory/models/deep-research-preview
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Google DeepMind
- **Release date:** 21 Apr 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Weights:** Proprietary (API only) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Context window:** 131K (131,072 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Max output:** 66K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Knowledge cutoff:** Jan 2025 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Input:** Text, images, video, audio and PDFs (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Output:** Text and images (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Reasoning mode:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/google/models/deep-research-preview-04-2026.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Gemini API | $2 | $12 | $0.20 | 131K |

## FAQ

### What is the context window of Deep Research Preview (Apr-21-2026)?

Deep Research Preview (Apr-21-2026) has a context window of 131,072 tokens (131K) and can generate up to 65,536 tokens in a single response, according to models.dev.

### How much does the Deep Research Preview (Apr-21-2026) API cost?

Through Gemini API, Deep Research Preview (Apr-21-2026) costs $2 per million input tokens and $12 per million output tokens. Prices last verified 4 Oct 2026.

### Is Deep Research Preview (Apr-21-2026) open source?

No. Deep Research Preview (Apr-21-2026) is a proprietary model; Google DeepMind has not released its weights. It is available through APIs including Gemini API.

### When was Deep Research Preview (Apr-21-2026) released?

Google DeepMind released Deep Research Preview (Apr-21-2026) on 21 Apr 2026, according to models.dev.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Deep Research Preview (Apr-21-2026)", https://www.aimodel.directory/models/deep-research-preview