What is the cheapest image generation API?

On October 31, 2026, the lowest-priced image model on UberLLM is FLUX.2 Klein 4B at $0.0039 per image at 1024×1024, 75% below its list price. UberLLM serves 79 image models through one API key; the 20 lowest prices per picture are below. Prices come from sellers on the UberLLM market and change during the day. A picture that fails costs nothing, and UberLLM adds no fee.

Prices as of October 31, 2026, 17:00 UTC. This page is rebuilt every hour.

Get an API key See all models and prices

base_url = "https://api.uberllm.dev/v1"

Model	Per image	List price	Below list price
FLUX.2 Klein 4B	$0.0039	$0.0157	75%
Z-Image Turbo (Venice)	$0.004	$0.01	60%
Venice SD35	$0.006	$0.01	40%
Stable Diffusion XL (Venice, legacy)	$0.006	$0.01	40%
Flux 1.1 (Venice, legacy)	$0.006	$0.01	40%
Flux 2 Pro (Venice)	$0.0075	$0.03	75%
Flux 3 Klein	$0.008	$0.008
Chroma (Venice)	$0.009	$0.01	10%
Seedream 4.5	$0.01	$0.04	75%
Grok Imagine High Quality (Venice)	$0.015	$0.06	75%
FLUX.2 Flex	$0.0157	$0.0629	75%
Seedream 5.0 Flash	$0.0162	$0.0162
Ideogram V3 Turbo	$0.0175	$0.0175
Seedream 3.0	$0.0175	$0.0175
Flux 1.1 Pro (Venice, legacy)	$0.018	$0.03	40%
Qwen Image (Venice)	$0.018	$0.03	40%
Grok Imagine (Venice)	$0.02	$0.03	33%
Grok Imagine — Edit (Venice)	$0.02	$0.03	33%
Nano Banana 2 Lite (image-to-image)	$0.02	$0.06	67%
Nano Banana 2.1 (Venice)	$0.02	$0.10	80%

UberLLM adds no fee to these prices · every model and price →