Imagen4 Preview Fast API Pricing

As of October 10, 2026, Imagen4 Preview Fast costs $0.02 per image on fal.

By GoogleModel ID fal_ai/fal-ai/imagen4/preview/fastPrices updated October 10, 2026Checked October 10, 2026

Per image: $0.02
Providers: 1
Added to LiteLLM: November 2025

Imagen4 Preview Fast 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
fal	`fal_ai/fal-ai/imagen4/preview/fast`	$0.02	–

What Imagen4 Preview Fast costs in practice

Generating 1,000 images

fal

$20.00

Use Imagen4 Preview Fast with LiteLLM

Call Imagen4 Preview Fast 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.

Python SDK

from litellm import image_generation

response = image_generation(
    model="fal_ai/fal-ai/imagen4/preview/fast",
    prompt="A cute baby sea otter",
)

Proxy config.yaml

model_list:
  - model_name: imagen4-preview-fast
    litellm_params:
      model: fal_ai/fal-ai/imagen4/preview/fast
      # credentials: see the provider's LiteLLM docs page

Call the proxy

curl http://0.0.0.0:4000/v1/images/generations \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "imagen4-preview-fast",
    "prompt": "A cute baby sea otter",
    "n": 1,
    "size": "1024x1024"
  }'

Imagen4 Preview Fast FAQ

How much does Imagen4 Preview Fast cost?

Imagen4 Preview Fast costs $0.02 per image on fal.

Which providers offer Imagen4 Preview Fast?

Imagen4 Preview Fast is available from fal through LiteLLM, using the model name fal_ai/fal-ai/imagen4/preview/fast.

How do I call Imagen4 Preview Fast with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="fal_ai/fal-ai/imagen4/preview/fast", 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 Imagen4 Preview Fast?

Imagen4 Preview Fast 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.

LiteLLM docs: fal.

Provider pages: fal.