# Gemini 4 Hydrogen API Pricing

As of November 12, 2026, Gemini 4 Hydrogen costs $1.50 per 1M input tokens and $7.50 per 1M output tokens on Google AI Studio, with cache reads at $0.075 per 1M tokens. It has a 1,048,576-token context window and returns up to 1,048,576 tokens per response.

- Page: https://models.litellm.ai/models/gemini-4-hydrogen
- Lab: Google
- LiteLLM model name: `gemini/gemini-4-hydrogen`
- Context window: 1,048,576 tokens
- Max output: 1,048,576 tokens
- Added to LiteLLM: November 12, 2026
- Prices updated: November 12, 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 | `gemini/gemini-4-hydrogen` | $1.50 | $7.50 | $0.075 | – | – | 1M |
| Google Vertex AI | `vertex_ai/gemini-4-hydrogen` | $1.50 | $7.50 | $0.075 | – | – | 1M |

## Cost examples

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

- Google AI Studio: $6.75
- Google Vertex AI: $6.75
- Google AI Studio batch: $3.375

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

- Google AI Studio: $16.50
- Google Vertex AI: $16.50

## Features

Supported: Function calling, Parallel tool calls, Structured output, Image input, PDF input, Audio input, Video input, Reasoning, Prompt caching, Web search, Computer use.
Not supported: Audio output.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="gemini/gemini-4-hydrogen",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## Cost calculator

10,000 requests a day with 1,000 input and 500 output tokens each, at Google AI Studio's price: $0.00525 per request, $52.50 per day, $1,575 per month (30 days). Try other numbers at https://models.litellm.ai/calculator?model=gemini-4-hydrogen

## FAQ

### How much does Gemini 4 Hydrogen cost?

Gemini 4 Hydrogen costs $1.50 per 1M input tokens and $7.50 per 1M output tokens on Google AI Studio, with cache reads at $0.075 per 1M tokens. Batch requests cost $0.75 per 1M input tokens and $3.75 per 1M output tokens.

### What is the context window of Gemini 4 Hydrogen?

Gemini 4 Hydrogen has a 1,048,576-token context window and returns up to 1,048,576 tokens per response.

### Which providers offer Gemini 4 Hydrogen?

Gemini 4 Hydrogen is available from 2 providers through LiteLLM: Google AI Studio and Google Vertex AI.

### How do I call Gemini 4 Hydrogen with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gemini/gemini-4-hydrogen", 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 Gemini 4 Hydrogen support?

Gemini 4 Hydrogen supports function calling, parallel tool calls, structured output, image input, PDF input, audio input, video input, reasoning, prompt caching, web search and computer use. It does not support audio output.

### When did LiteLLM add Gemini 4 Hydrogen?

Gemini 4 Hydrogen was added to LiteLLM's model price file on November 12, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json. Maintainers update it from each provider's published pricing, and this page is usually rebuilt within 20 minutes of every change.