free-pi

Compare models

Pick up to 4. Every model here is free in free-pi.

Gemini 4 Argon FlexKimi K3.1 ProDefense Flash
MakerGoogleMoonshotAI—
Usage in free-pislower, half price · ~20x usage~41x usage~20x usage
Intelligence index52.6——
Coding index———
Context window1,048,576 tokens (best)1,048,576 tokens (best)—
Max output943,718 tokens (best)943,718 tokens (best)—
InputsText, image, file, audio, video (best)Text, image, video—
Tool callingYesYes—
Reasoning effortYesYes—
Structured outputYesYes—
ReleasedOct 13, 2026Oct 23, 2026—
Model pageModel page Model page Model page

Stats from OpenRouter; refreshed automatically. Usage rate from free-pi. Green marks the best value in each row. “—” means no figure is available.