# Models in free-pi

Canonical: https://freepi.ai/models

Every model you can use in free-pi. Switch anytime with `/model`. [Compare models](https://freepi.ai/models/compare.md).

- [DeepSeek V4 Flash](https://freepi.ai/models/deepseek-v4-flash.md): 1x usage
- [Claude Haiku 5.5](https://freepi.ai/models/claude-haiku-5.5.md): \~0.5x usage
- [Claude Sonnet 5.5](https://freepi.ai/models/claude-sonnet-5.5.md): premium, uses allowance fast · \~0.02x usage
- [DeepSeek V4.1 Flash](https://freepi.ai/models/deepseek-v4.1-flash.md): \~0.1x usage
- [Gemini 4 Argon](https://freepi.ai/models/gemini-4-argon.md): premium, uses allowance fast · \~0.02x usage
- [Gemini 4 Argon Flex](https://freepi.ai/models/gemini-4-argon-flex.md): slower, half price · \~0.05x usage
- [GLM 5.3 Flash](https://freepi.ai/models/glm-5.3-flash.md): \~0.7x usage
- [GPT-6.1 Sol](https://freepi.ai/models/gpt-6.1-sol.md): premium, uses allowance fast · \~0.02x usage
- [GPT-6.1 Sol Flex](https://freepi.ai/models/gpt-6.1-sol-flex.md): slower, half price · \~0.05x usage
- [GPT-6 Luna](https://freepi.ai/models/gpt-6-luna.md): \~0.5x usage
- [GPT-6 Luna Flex](https://freepi.ai/models/gpt-6-luna-flex.md): slower, half price · \~1x usage
- [GPT-OSS 120B](https://freepi.ai/models/gpt-oss-120b-speed.md): \~1.6x usage
- [Laguna S 2.1 (Poolside)](https://freepi.ai/models/laguna-s-2.1.md): free preview, rate-limited · free, then \~0.6x usage
- [MiMo V2.6 Flash (Xiaomi)](https://freepi.ai/models/mimo-v2.6-flash.md): \~0.4x usage
- [Muse Spark 1.3 Contributor](https://freepi.ai/models/muse-spark-1.3-contributor.md): trains on your data (free-pi + Meta) · \~0.5x usage
- [Muse Spark Open (Meta)](https://freepi.ai/models/muse-spark-open.md): premium, uses allowance fast · \~0.04x usage
- [Qwen3.5 35B (Darkbloom)](https://freepi.ai/models/qwen3.5-35b-darkbloom.md): \~0.7x usage
- [Solar Pro 4](https://freepi.ai/models/solar-pro-4.md): \~1.6x usage