# Gen4 Image API Pricing

As of October 10, 2026, Gen4 Image costs $0.05 per image on Runway.

- Page: https://models.litellm.ai/models/gen4_image
- LiteLLM model name: `runwayml/gen4_image`
- Added to LiteLLM: November 2025
- 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 |
|---|---|---|---|---|---|---|---|
| Runway | `runwayml/gen4_image` | – | – | – | $0.05 | – | – |

## Cost examples

Generating 1,000 images:

- Runway: $50.00

## Use it with LiteLLM

```python
from litellm import image_generation

response = image_generation(
    model="runwayml/gen4_image",
    prompt="A cute baby sea otter",
)
```

## FAQ

### How much does Gen4 Image cost?

Gen4 Image costs $0.05 per image on Runway.

### Which providers offer Gen4 Image?

Gen4 Image is available from Runway through LiteLLM, using the model name runwayml/gen4_image.

### How do I call Gen4 Image with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="runwayml/gen4_image", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/images/generations from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### When did LiteLLM add Gen4 Image?

Gen4 Image was added to LiteLLM's model price file in November 2025.

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