Microsoft model product
Phi-4-reasoning is a state-of-the-art open-weight reasoning model finetuned from Phi-4 using supervised fine-tuning on a dataset of chain-of-thought traces and reinforcement learning. It focuses on math, science, and coding skills.
Updated Aug 10, 2026. Default version: Phi 4 Reasoning
Structured fields from the published default version.
This profile uses the latest version under this unique model that has a calculated LLMBoard score. Arena and price are excluded.
Published benchmark records for the scored version Phi 4 Reasoning.
| FlenQA | 1.0 | 2 | 2 | 0.0% | C | |
| OmniMath | 0.8 | 2 | 2 | 0.0% | C | |
| PhiBench | 0.7 | 2 | 3 | 50.0% | C | |
| HumanEval+ | 0.9 | 6 | 76 | 93.3% | C | |
| Arena Hard | 0.7 | 10 | 26 | 64.0% | C | |
| AIME 2024 | 0.8 | 34 | 53 | 36.5% | C | |
| LiveCodeBench | 0.5 | 39 | 73 | 47.2% | C | |
| IFEval | 0.8 | 45 | 65 | 31.3% | C | |
| MMLU-Pro | 0.7 | 74 | 129 | 43.0% | C | |
| AIME 2025 | 0.6 | 95 | 114 | 16.8% | C | |
| GPQA | 0.7 | 145 | 233 | 37.9% | C |
Preference and agent-evaluation signals from published Arena datasets.
The default version has no published Arena rows, or its source alias has not been resolved.
Official vendor API PAYG pricing is summarized first. The table then lists individual provider offerings without treating their minimum as the official price.
| Azure Cognitive Services | phi-4-reasoning | global | $0.125 | $0.50 | 32K | |
| Azure | phi-4-reasoning | global | $0.125 | $0.50 | 32K |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
All published versions linked to this unique model. The score columns identify the version used by the current overall ranking.
| Phi 4 Reasoning | 47.9 | 14B | N/A | N/A | No | MIT |
A concise description based on the published model registry.
Phi-4-reasoning is a state-of-the-art open-weight reasoning model finetuned from Phi-4 using supervised fine-tuning on a dataset of chain-of-thought traces and reinforcement learning. It focuses on math, science, and coding skills.
Use the benchmark, Arena and pricing sections above as separate evidence. A missing field means the current data snapshot does not support that claim.
Data snapshot: 2026-08-07. Editorial model content is not available in the backend.
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Common questions about Phi 4 Reasoning.
Phi 4 Reasoning's default version was released on Apr 30, 2025.
Phi 4 Reasoning's official API price is $0.125 per million input tokens and $0.50 per million output tokens via Azure. The lowest tracked third-party offer starts at $0.125 input and $0.50 output via Azure Cognitive Services.
Phi 4 Reasoning is published under Microsoft in the model registry.
The current registry does not publish a context window for the default version.
No. The default version is not marked as having publicly available weights.
2 published provider offerings are linked to the default version.
Nearby ranked alternatives include MiniMax M1 40K, Qwen3.6 35B A3B, Gemma 4 12B.