Phi 4 Reasoning
AffordableRun locallyMicrosoft's 14B open reasoning model that rivals much larger models.
Reasoning-tuned Phi-4 variant strong on math, science, and coding benchmarks, sized to run on a single local GPU.
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The model supports extended reasoning, a 33K context window.
Benchmarks
Category Rankings
Specifications
Run locally
Run Phi 4 Reasoning on your own computer with the Local AI Engine for free, with no rate limits and no third-party AI provider involved. idapt installs it and routes chat to your hardware automatically.
ollama pull phi4-reasoning:14b
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Nemotron 3 Ultravs Phi 4 ReasoningFrequently Asked Questions about Phi 4 Reasoning▼
Who created Phi 4 Reasoning?
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Phi 4 Reasoning was created by Microsoft.
Is Phi 4 Reasoning a reasoning model?
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Yes, Phi 4 Reasoning is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does Phi 4 Reasoning support image or vision input?
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No, Phi 4 Reasoning does not currently support image or vision input. It is a text-only model.
Does Phi 4 Reasoning support audio?
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No, Phi 4 Reasoning does not support audio input.
What is the context window of Phi 4 Reasoning?
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Phi 4 Reasoning has a context window of 33K tokens, meaning it can process approximately 24,576 words of context at once.
Is Phi 4 Reasoning open source?
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Phi 4 Reasoning is a proprietary model developed by Microsoft. The model weights and training data are not publicly available.
Where can I use Phi 4 Reasoning?
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You can chat with Phi 4 Reasoning on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Phi 4 Reasoning through Microsoft's own API or platform.