Model reference · open weights
Phi-4-mini is an open-weight language model from microsoft. Phi-4-mini-instruct (BF16) weighs 7.7 GB; the smallest configuration that runs it is RTX 3060 12 GB.
Summary of the microsoft/Phi-4-mini-instruct model card, 2026-10-01
What it is
| Released by | microsoft |
|---|---|
| Released | 2025-02-19 |
| Parameters | 3.8B |
| VRAM | 7.7 GB for the weights |
What it runs on
| Card | Requests at once | Context max | Memory | |
|---|---|---|---|---|
| 8K each | 32K each | |||
| RTX 3060 12 GB | 2 | — | 23K | 11.6 GB |
| RTX 4060 Ti 16 GB | 6 | 1 | 52K | 15.4 GB |
| RTX 3090 24 GB | 13 | 3 | 111K | 23.4 GB |
| RTX 4090 24 GB | 13 | 3 | 111K | 23.4 GB |
| RTX 5090 32 GB | 21 | 5 | all 128K | 31.0 GB |
| L40S 48 GB | 33 | 8 | all 128K | 44.0 GB |
| A100 80 GB | 64 | 16 | all 128K | 78.2 GB |
| H100 80 GB | 60 | 15 | all 128K | 78.1 GB |
| RTX PRO 6000 Blackwell 96 GB | 75 | 18 | all 128K | 93.8 GB |
| DGX Spark (GB10) 128 GB unified | 87 | 21 | all 128K | 107 GB |
| H200 141 GB | 116 | 29 | all 128K | 138 GB |
| B200 180 GB | 151 | 37 | all 128K | 176 GB |
| 2× RTX 3060 12 GB tensor parallel | 13 | 3 | 104K | 11.6 GB a card |
| 2× RTX 4060 Ti 16 GB tensor parallel | 20 | 5 | all 128K | 15.4 GB a card |
| Requests at once | 8K tokens each | 32K tokens each |
|---|---|---|
| 1 | 9.5 GB | 12.7 GB |
| 5 | 13.8 GB | 29.9 GB |
| 8 | 17.0 GB | 42.8 GB |
| 16 | 25.6 GB | 77.1 GB |
| 32 | 42.8 GB | 146 GB |
| 64 | 77.1 GB | 283 GB |
One card, with vLLM's small-card settings.
Builds
| Build | Params | Precision | Weights | Smallest setup |
|---|---|---|---|---|
| Phi-4-mini-instruct (above) ↗ | 3.8B | BF16 | 7.7 GB | RTX 3060 12 GB |
| Phi-4-mini-instruct-GGUF ↗ packaged by unsloth 8 builds: Q2_K 1.7 GB … BF16 7.7 GB |
— | GGUF | 2.5 GB | RTX 3060 12 GB |
From the model card
🎉Phi-4: [mini-reasoning | reasoning] | [multimodal-instruct | onnx]; [mini-instruct | onnx]
Phi-4-mini-instruct is a lightweight open model built upon synthetic data and filtered publicly available websites - with a focus on high-quality, reasoning dense data. The model belongs to the Phi-4 model family and supports 128K token context length. The model underwent an enhancement process, incorporating both supervised fine-tuning and direct preference optimization to support precise instruction adherence and robust safety measures.
📰 Phi-4-mini Microsoft Blog 📖 Phi-4-mini Technical Report 👩🍳 Phi Cookbook 🏡 Phi Portal 🖥️ Try It Azure, Huggingface
The model is intended for broad multilingual commercial and research use. The model provides uses for general purpose AI systems and applications which require:
The model is designed to accelerate research on language and multimodal models, for use as a building block for generative AI powered features.
The model is not specifically designed or evaluated for all downstream purposes. Developers should consider common limitations of language models, as well as performance difference across languages, as they select use cases, and evaluate and mitigate for accuracy, safety, and fairness before using within a specific downstream use case, particularly for high-risk scenarios. Developers should be aware of and adhere to applicable laws or regulations (including but not limited to privacy, trade compliance laws, etc.) that are relevant to their use case.
Nothing contained in this Model Card should be interpreted as or deemed a restriction or modification to the license the model is released under.
This release of Phi-4-mini-instruct is based on valuable user feedback from the Phi-3 series. The Phi-4-mini model employed new architecture for efficiency, larger vocabulary for multilingual support, and better post-training techniques were used for instruction following, function calling, as well as additional data leading to substantial gains on key capabilities. It is anticipated that most use cases will benefit from this release, but users are encouraged to test in their particular AI applications. The enthusiastic support for the Phi-4 series is greatly appreciated. Feedback on Phi-4-mini-instruct is welcomed and crucial to the model’s evolution and improvement.
To understand the capabilities, the 3.8B parameters Phi-4-mini-instruct model was compared with a set of models over a variety of benchmarks using an internal benchmark platform (See Appendix A for benchmark methodology). A high-level overview of the model quality is as follows:
| Benchmark | Similar size | 2x size | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Phi-4 mini-Ins | Phi-3.5-mini-Ins | Llama-3.2-3B-Ins | Mistral-3B | Qwen2.5-3B-Ins | Qwen2.5-7B-Ins | Mistral-8B-2410 | Llama-3.1-8B-Ins | Llama-3.1-Tulu-3-8B | Gemma2-9B-Ins | GPT-4o-mini-2024-07-18 | |
| Popular aggregated benchmark | |||||||||||
| Arena Hard | 32.8 | 34.4 | 17.0 | 26.9 | 32.0 | 55.5 | 37.3 | 25.7 | 42.7 | 43.7 | 53.7 |
| BigBench Hard (0-shot, CoT) | 70.4 | 63.1 | 55.4 | 51.2 | 56.2 | 72.4 | 53.3 | 63.4 | 55.5 | 65.7 | 80.4 |
| MMLU (5-shot) | 67.3 | 65.5 | 61.8 | 60.8 | 65.0 | 72.6 | 63.0 | 68.1 | 65.0 | 71.3 | 77.2 |
| MMLU-Pro (0-shot, CoT) | 52.8 | 47.4 | 39.2 | 35.3 | 44.7 | 56.2 | 36.6 | 44.0 | 40.9 | 50.1 | 62.8 |
| Reasoning | |||||||||||
| ARC Challenge (10-shot) | 83.7 | 84.6 | 76.1 | 80.3 | 82.6 | 90.1 | 82.7 | 83.1 | 79.4 | 89.8 | 93.5 |
| BoolQ (2-shot) | 81.2 | 77.7 |
Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.