# Gemini Robotics Er 2 Preview API Pricing

As of October 10, 2026, Gemini Robotics Er 2 Preview costs $1.00 per 1M input tokens and $5.00 per 1M output tokens on Google AI Studio, with cache reads at $0.10 per 1M tokens. It has a 131,072-token context window and returns up to 65,536 tokens per response.

- Page: https://models.litellm.ai/models/gemini-robotics-er-2-preview
- Lab: Google
- LiteLLM model name: `gemini/gemini-robotics-er-2-preview`
- Context window: 131,072 tokens
- Max output: 65,536 tokens
- Added to LiteLLM: August 2, 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 | `gemini/gemini-robotics-er-2-preview` | $1.00 | $5.00 | $0.10 | – | – | 128K |

## Cost examples

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

- Google AI Studio: $4.50
- Google AI Studio batch: $2.25

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

- Google AI Studio: $11.00

## Features

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

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="gemini/gemini-robotics-er-2-preview",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Gemini Robotics Er 2 Preview cost?

Gemini Robotics Er 2 Preview costs $1.00 per 1M input tokens and $5.00 per 1M output tokens on Google AI Studio, with cache reads at $0.10 per 1M tokens. Batch requests cost $0.50 per 1M input tokens and $2.50 per 1M output tokens.

### What is the context window of Gemini Robotics Er 2 Preview?

Gemini Robotics Er 2 Preview has a 131,072-token context window and returns up to 65,536 tokens per response.

### Which providers offer Gemini Robotics Er 2 Preview?

Gemini Robotics Er 2 Preview is available from Google AI Studio through LiteLLM, using the model name gemini/gemini-robotics-er-2-preview.

### How do I call Gemini Robotics Er 2 Preview with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gemini/gemini-robotics-er-2-preview", 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 Robotics Er 2 Preview support?

Gemini Robotics Er 2 Preview supports function calling, parallel tool calls, structured output, image input, PDF input, audio input, video input, reasoning, prompt caching and web search. It does not support audio output.

### When did LiteLLM add Gemini Robotics Er 2 Preview?

Gemini Robotics Er 2 Preview was added to LiteLLM's model price file on August 2, 2026.

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