# Deep Research Pro Preview API Pricing

As of October 10, 2026, Deep Research Pro Preview costs $2.00 per 1M input tokens and $12.00 per 1M output tokens on Google AI Studio. It has a 1,048,576-token context window and returns up to 65,536 tokens per response.

- Page: https://models.litellm.ai/models/deep-research-pro-preview
- LiteLLM model name: `gemini/deep-research-pro-preview-12-2025`
- Context window: 1,048,576 tokens
- Max output: 65,536 tokens
- Added to LiteLLM: February 2026
- Deprecation date: October 23, 2026
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Google AI Studio (snapshot 12-2025) | `gemini/deep-research-pro-preview-12-2025` | $2.00 | $12.00 | – | – | – | 1M |
| Google Vertex AI (snapshot 12-2025) | `vertex_ai/deep-research-pro-preview-12-2025` | $2.00 | $12.00 | $0.20 | $0.134 | – | 64K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Google AI Studio: $10.00
- Google Vertex AI: $10.00
- Google AI Studio batch: $5.00

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Google AI Studio: $22.40
- Google Vertex AI: $22.40

## Features

Supported: Structured output, Image input, PDF input, Prompt caching, Web search.
Not supported: Function calling.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="gemini/deep-research-pro-preview-12-2025",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Deep Research Pro Preview cost?

Deep Research Pro Preview costs $2.00 per 1M input tokens and $12.00 per 1M output tokens on Google AI Studio. Batch requests cost $1.00 per 1M input tokens and $6.00 per 1M output tokens.

### What is the context window of Deep Research Pro Preview?

Deep Research Pro Preview has a 1,048,576-token context window and returns up to 65,536 tokens per response.

### Which providers offer Deep Research Pro Preview?

Deep Research Pro Preview is available from 2 providers through LiteLLM: Google AI Studio and Google Vertex AI.

### How do I call Deep Research Pro Preview with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gemini/deep-research-pro-preview-12-2025", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Deep Research Pro Preview support?

Deep Research Pro Preview supports structured output, image input, PDF input, prompt caching and web search. It does not support function calling.

### When did LiteLLM add Deep Research Pro Preview?

Deep Research Pro Preview was added to LiteLLM's model price file in February 2026.

### Is Deep Research Pro Preview being deprecated?

Google AI Studio lists a deprecation date of October 23, 2026 for gemini/deep-research-pro-preview-12-2025.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json