🔬 Tested by TokenRouter

Same prompt. Every model. Judge for yourself.

We run a fixed set of prompts against every model in the catalog and keep the outputs — so you can compare what they actually produce, not what the docs claim.

The prompt In this image, replace the red square with a yellow star. Keep the blue circle exactly as it is.

gemini-3-pro-image output — gemini-3-pro-image google ✓ passed 16s $0.1422

gemini-3.1-flash-image output — gemini-3.1-flash-image google ✓ passed 5s $0.07698

gemini-3.1-flash-lite-image output — gemini-3.1-flash-lite-image google ✓ passed 15s

nano-banana-pro-preview output — nano-banana-pro-preview google ✓ passed 16s

OpenAI: GPT-5 Image output — OpenAI: GPT-5 Image openai ✓ passed 32s $0.18487

OpenAI: GPT-5 Image Mini output — OpenAI: GPT-5 Image Mini openai ✓ passed 50s $0.04183

OpenAI: GPT-5.4 Image 2 output — OpenAI: GPT-5.4 Image 2 openai ✓ passed 108s $0.22604

Outputs generated 2026-08-19. Costs are measured from the provider's own billing where reported. Nothing here is simulated.