free-pi

Compare models

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

Defense FlashGPT-6 LunaLaguna S 2.1 (Poolside)Claude Sonnet 5.5
Maker—OpenAIPoolsideAnthropic
Usage in free-pi~20x usage~2.0x usagefree preview, rate-limited · free, then ~1.8x usagepremium, uses allowance fast · ~41x usage
Intelligence index—38.1—56 (best)
Coding index————
Context window—1,050,000 tokens (best)262,144 tokens1,000,000 tokens
Max output—128,000 tokens (best)32,768 tokens128,000 tokens (best)
Inputs—Text, image, file (best)TextText, image, file (best)
Tool calling—YesYesYes
Reasoning effort—YesNoYes
Structured output—YesNoYes
Released—Sep 22, 2026Jul 21, 2026Sep 28, 2026
Model pageModel page Model 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.