# Compare models

Canonical: https://freepi.ai/models/compare

All models in free-pi side by side. Pick up to four in the browser at https://freepi.ai/models/compare. Higher is better for the index, context, output and input rows.

| Model | Maker | Usage in free-pi | Intelligence index | Coding index | Context window | Max output | Inputs | Tool calling | Reasoning effort | Structured output | Released |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| DeepSeek V4 Flash | — | 1x usage (default) | — | — | — | — | — | — | — | — | — |
| Claude Haiku 5.5 | — | \~0.5x usage | — | — | — | — | — | — | — | — | — |
| Claude Sonnet 5.5 | — | premium, uses allowance fast · \~0.02x usage | — | — | — | — | — | — | — | — | — |
| DeepSeek V4.1 Flash | — | \~0.1x usage | — | — | — | — | — | — | — | — | — |
| Gemini 4 Argon | — | premium, uses allowance fast · \~0.02x usage | — | — | — | — | — | — | — | — | — |
| Gemini 4 Argon Flex | — | slower, half price · \~0.05x usage | — | — | — | — | — | — | — | — | — |
| GLM 5.3 Flash | — | \~0.7x usage | — | — | — | — | — | — | — | — | — |
| GPT-6.1 Sol | — | premium, uses allowance fast · \~0.02x usage | — | — | — | — | — | — | — | — | — |
| GPT-6.1 Sol Flex | — | slower, half price · \~0.05x usage | — | — | — | — | — | — | — | — | — |
| GPT-6 Luna | — | \~0.5x usage | — | — | — | — | — | — | — | — | — |
| GPT-6 Luna Flex | — | slower, half price · \~1x usage | — | — | — | — | — | — | — | — | — |
| GPT-OSS 120B | — | \~1.6x usage | — | — | — | — | — | — | — | — | — |
| Laguna S 2.1 (Poolside) | — | free preview, rate-limited · free, then \~0.6x usage | — | — | — | — | — | — | — | — | — |
| MiMo V2.6 Flash (Xiaomi) | — | \~0.4x usage | — | — | — | — | — | — | — | — | — |
| Muse Spark 1.3 Contributor | — | trains on your data (free-pi + Meta) · \~0.5x usage | — | — | — | — | — | — | — | — | — |
| Muse Spark Open (Meta) | — | premium, uses allowance fast · \~0.04x usage | — | — | — | — | — | — | — | — | — |
| Qwen3.5 35B (Darkbloom) | — | \~0.7x usage | — | — | — | — | — | — | — | — | — |
| Solar Pro 4 | — | \~1.6x usage | — | — | — | — | — | — | — | — | — |

Stats from OpenRouter; refreshed automatically.