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Model

Phi-4 Mini Flash Reasoning

Check the model’s supported formats and setup instructions before choosing a download. Memory requirement not supplied; check the model and app instructions. Best use: Fast advanced math reasoning on CUDA stacks where Hugging Face and SGLang setup is acceptable.

3.8BReasoning

Best use

Fast advanced math reasoning on CUDA stacks where Hugging Face and SGLang setup is acceptable.

Memory planning

Memory requirement not supplied; check the model and app instructions

Expected pace

Depends on your hardware, app, and conversation length

License

MIT; read the model’s terms before use

Who should use this model?

  • Fast advanced math reasoning on CUDA stacks where Hugging Face and SGLang setup is acceptable.

Choose something else when

  • Avoid as a beginner default until Ollama, GGUF, LM Studio, or MLX paths mature publicly.

What hardware makes sense?

The download is only part of the memory needed. Leave room for the app, the input it processes, and other open programs. For chat models, context includes the instructions, conversation, and answer. Longer context needs more memory.

CPU only
Use a smaller model for this memory limit.
8GB system memory
Check this model with your exact hardware and settings before choosing it.
16GB system memory
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32GB system memory
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8GB GPU memory
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12GB GPU memory
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24GB GPU memory
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Apple unified memory
Check this model with your exact hardware and settings before choosing it.

Model facts that change the decision

Parameters
3.8B
Input
Text
Published context limit
64,000 tokens
Model format
safetensors
Languages
Unknown

Check the setup instructions

A ready-to-follow setup for a local chat app is not supplied here. Follow the official model card for this exact model and task.

Conditions that change the answer

  • Best treated as an advanced or watchlist entry until Ollama, GGUF, LM Studio, MLX, and llama.cpp support are manually supported. Microsoft positions it for math reasoning, not broad general assistant use.
  • Commercial use: Permitted under MIT license; verify deployment stack and application obligations before commercial use.
  • Phi-4 Mini Flash Reasoning is the newer fast math-reasoning variant, built around Microsoft’s SambaY hybrid architecture. It looks promising for CUDA developers, but beginner local workflows remain less supported than mini-reasoning for catalog use today.

Read the controlling license text →