Microsoft model product
Phi 4
phi-4 is a state-of-the-art open model built to excel at advanced reasoning, coding, and knowledge tasks.
Updated Aug 12, 2026. Default version: Phi 4
LLMBoard score9.4Phi 4
Coverage100%13 benchmark families
Context window16KTokens
Official input price$0.125Azure API
Phi 4 Specifications
Technical details for the model's default version.
- Version
- Phi 4
- Released
- Dec 12, 2024
- Knowledge cutoff
- Jun 1, 2024
- Parameters
- 14.7B
- Context window
- 16K
- Max output
- 16K
- Inputs
- text
- Outputs
- text
- Open weights
- No
- License
- MIT
Phi 4 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Phi 4 Benchmark Results
Benchmark scores for Phi 4.
Phi 4 Arena Results
Preference and agent-evaluation results for the default version.
| text | overall | 284 | 1216.8 | 24,126 | N/A | |
| text style control | overall | 290 | 1256.2 | 24,126 | N/A |
Phi 4 Runtime Performance
Provider-specific output speed and catalog latency for Phi 4. Runtime does not affect the capability score.
| DeepInfra | 33 tok/s | 0.2 s | 16K | 16K |
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Phi 4 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- $0.125 input, $0.50 output per 1M
- Official provider
- Azure
- Lowest third-party
- From $0.07 input, $0.14 output per 1M via OpenRouter
- Tracked offerings
- 3
| OpenRouter | microsoft/phi-4 | global | $0.07 | $0.14 | 16.4K | |
| Azure Cognitive Services | phi-4 | global | $0.125 | $0.50 | 128K | |
| Azure | phi-4 | global | $0.125 | $0.50 | 128K |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Phi 4 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
| Phi 4 | 9.4 | 14.7B | 16K | 16K | No | MIT |
What is Phi 4?
Key information about Phi 4 and its available data.
phi-4 is a state-of-the-art open model built to excel at advanced reasoning, coding, and knowledge tasks. It leverages a blend of synthetic data, filtered web data, academic texts, and supervised fine-tuning for precision, alignment, and safety.
Data as of 2026-08-11.
Phi 4 vs nearby models
Open a comparison with the three ranked models immediately above and below this model.
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FAQ
Common questions about Phi 4.
When was Phi 4 released?
Phi 4's default version was released on Dec 12, 2024.
How much does Phi 4 cost?
Phi 4'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 $0.07 input and $0.14 output via OpenRouter.
Who created Phi 4?
Phi 4 was created by Microsoft.
What is the context window for Phi 4?
The default version has a 16K token context window.
Is Phi 4 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Phi 4?
3 provider offerings are linked to the default version.
What models should I compare Phi 4 with?
Nearby ranked alternatives include Llama 3.1 Nemotron Nano 8B, Qwen2.5 Omni 7B, Qwen2 72B.