free-pi

Compare models

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

Defense FlashClaude Haiku 5.5Solar Pro 4
Maker—AnthropicUpstage
Usage in free-pi~20x usage~2.0x usage~0.6x usage
Intelligence index—43.4 (best)28.2
Coding index——52.7
Context window—1,000,000 tokens (best)524,288 tokens
Max output—128,000 tokens131,072 tokens (best)
Inputs—Text, image, file (best)Text
Tool calling—YesYes
Reasoning effort—YesYes
Structured output—YesYes
Released—Oct 7, 2026Aug 10, 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.