Gen4 Image API Pricing
As of October 10, 2026, Gen4 Image costs $0.05 per image on Runway.
- Per image
- $0.05
- Providers
- 1
- Added to LiteLLM
- November 2025
Gen4 Image pricing by provider
1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.
| Provider | Model name in LiteLLM | Per image | Context |
|---|---|---|---|
| Runway | runwayml/gen4_image | $0.05 | – |
Other Gen4 Image prices on Runway
| Input image | $0.05 per image |
What Gen4 Image costs in practice
Generating 1,000 images
| Runway | $50.00 |
Gen4 Image features
Input: text, image. Output: image.
Use Gen4 Image with LiteLLM
Call Gen4 Image through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/images/generations. LiteLLM tracks the cost of every request at these prices.
from litellm import image_generation
response = image_generation(
model="runwayml/gen4_image",
prompt="A cute baby sea otter",
)model_list:
- model_name: gen4_image
litellm_params:
model: runwayml/gen4_image
# credentials: see the provider's LiteLLM docs pagecurl http://0.0.0.0:4000/v1/images/generations \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-1234" \
-d '{
"model": "gen4_image",
"prompt": "A cute baby sea otter",
"n": 1,
"size": "1024x1024"
}'Gen4 Image 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.
Sources
Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:
LiteLLM docs: Runway.
Provider pages: Runway.