LLM Reference

Phi-4 Mini Flash Reasoning

Released
2025-12-01
Last refreshed
2026-05-22
Status
Researched 41d ago
Open sourceCommercial use: permittedLong context

Phi-4 Mini Flash Reasoning is worth evaluating for long context when its provider route and context window match the workload.

Use it for

  • Teams evaluating long context
  • Workloads that can use a 128k context window
  • Buyers comparing 1 tracked provider route

Do not use it for

  • Vision or document-understanding workloads
  • Strict JSON or tool-calling flows
Specifications
Family
Phi-4
Released
2025-12-01
Context
128k
Parameters
3.8B
Architecture
Decoder Only
Knowledge cutoff
2025-02
Specialization
reasoning
Openness
Open source
License
MITOSI-approvedCommercial use: permitted
Training
Pretrained
Created by
Microsoft ResearchMicrosoft Research

Advancing the state-of-the-art in AI and computing.

Redmond, Washington, United States
Founded 1991
Website
Pricing
Output / 1M
-
Input / 1M
-

Cheapest of 1 route · NVIDIA NIM

Providers(1)
NVIDIA NIM
View 1 provider route

About

Lightweight reasoning variant of Microsoft Phi-4 Mini optimized for fast inference.

Phi-4 Mini Flash Reasoning is an open-source model in the Phi-4 family. The structured metadata tracks a 128k-token context window and reasoning. This page tracks provider routes through NVIDIA NIM. No headline benchmark score is tracked for Phi-4 Mini Flash Reasoning yet.

Top use-case fit

Long context

Included by capability and metadata signals in the decision map.

Provider price ladder

Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.

ProviderInput / 1MOutput / 1MRoute
NVIDIA NIM--
ServerlessPartial

Available via routers & gateways(1)

NVIDIA LLM Router Blueprint

Router

NVIDIA's open-source AI blueprint for LLM routing that selects the optimal model per prompt via intent classification or neural auto-routing; being deprecated 2026-06-20.

Free OSSNVIDIA NIM

Capabilities

Reasoning

Benchmark peer barsfor Long context

No task-mapped benchmark peers are available for this model yet.

Migration checks

No linked migration route is available for this model yet.

Compare Phi-4 Mini Flash Reasoning with other models

Comparison and alternatives

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Llama 3 8B Lite4Phi-4 Mini Flash Reasoning vs Teuken 7B Instruct4Phi-4 Mini Flash Reasoning vs Llama 3.1 Nemotron 70B Reward4Phi-4 Mini Flash Reasoning vs Gemini 3.1 Pro Preview Custom Tools4Phi-4 Mini Flash Reasoning vs Mistral Large 24Phi-4 Mini Flash Reasoning vs o3 Mini4Phi-4 Mini Flash Reasoning vs Mistral Medium 34Phi-4 Mini Flash Reasoning vs Llama Guard 3 8B4Phi-4 Mini Flash Reasoning vs Falcon 3 7B Instruct4Phi-4 Mini Flash Reasoning vs Claude Sonnet 4.54Phi-4 Mini Flash Reasoning vs Claude 3.7 Sonnet4Phi-4 Mini Flash Reasoning vs DeepSeek R14Phi-4 Mini Flash Reasoning vs DeepSeek V3.14Phi-4 Mini Flash Reasoning vs Claude 3.5 Haiku4Phi-4 Mini Flash Reasoning vs Gemini Robotics-ER 1.6 Preview4Phi-4 Mini Flash Reasoning vs Llama 3.1 NemoGuard 8B Content Safety3Phi-4 Mini Flash Reasoning vs Dracarys Llama 3.1 70B Instruct3Phi-4 Mini Flash Reasoning vs Sarvam-M Multilingual Hybrid3Phi-4 Mini Flash Reasoning vs Codex Mini Latest3Phi-4 Mini Flash Reasoning vs Llama 2 7B Chat3Phi-4 Mini Flash Reasoning vs Mixtral 8x7B3Phi-4 Mini Flash Reasoning vs Qwen2-7B-Instruct3Phi-4 Mini Flash Reasoning vs Code Cushman 0023Phi-4 Mini Flash Reasoning vs GPT-5.4 Pro3Phi-4 Mini Flash Reasoning vs Llama 2 13B Chat3Phi-4 Mini Flash Reasoning vs Nano Banana (Gemini 2.5 Flash Image)3Phi-4 Mini Flash Reasoning vs DeepSeek V33Phi-4 Mini Flash Reasoning vs Llama Guard 7B3Phi-4 Mini Flash Reasoning vs Kimi K2 0905 Preview3Phi-4 Mini Flash Reasoning vs Llama Guard 2 8B3Phi-4 Mini Flash Reasoning vs Grok-33Phi-4 Mini Flash Reasoning vs GPT-42Phi-4 Mini Flash Reasoning vs MiniCPM 2B2Phi-4 Mini Flash Reasoning vs Italia 10B Instruct2Phi-4 Mini Flash Reasoning vs o32Phi-4 Mini Flash Reasoning vs o3 Deep Research2Phi-4 Mini Flash Reasoning vs Claude Opus 4.52Phi-4 Mini Flash Reasoning vs Gemini 3 Pro2Phi-4 Mini Flash Reasoning vs ELYZA Japanese Llama 2 7B2Phi-4 Mini Flash Reasoning vs GPT-2 Medium2Phi-4 Mini Flash Reasoning vs Gemini 3.1 Flash TTS Preview2Phi-4 Mini Flash Reasoning vs GLM-5 Turbo2Phi-4 Mini Flash Reasoning vs GPT-22Phi-4 Mini Flash Reasoning vs Kimi K2.52Phi-4 Mini Flash Reasoning vs Llama 3.3 Nemotron Super 49B v11Phi-4 Mini Flash Reasoning vs Llama 3 Swallow 70B Instruct1Phi-4 Mini Flash Reasoning vs Llama 3 Taiwan 70B Instruct1Phi-4 Mini Flash Reasoning vs Marin 8B Instruct1Phi-4 Mini Flash Reasoning vs Claude Instant 1.11Phi-4 Mini Flash Reasoning vs GPT-11Phi-4 Mini Flash Reasoning vs Gemini 2.5 Pro Preview 05-061Phi-4 Mini Flash Reasoning vs Claude Instant1Phi-4 Mini Flash Reasoning vs ELYZA Japanese Llama 2 13B1Phi-4 Mini Flash Reasoning vs Kimi K2 Instruct1Phi-4 Mini Flash Reasoning vs Magistral Small 25061Phi-4 Mini Flash Reasoning vs Mixtral 8x7B Instruct v0.11Phi-4 Mini Flash Reasoning vs Claude Mythos Preview1Phi-4 Mini Flash Reasoning vs DeepSeek V3 Base1Phi-4 Mini Flash Reasoning vs Gemini 3.1 Pro Preview1Phi-4 Mini Flash Reasoning vs GLM-5V-Turbo1Phi-4 Mini Flash Reasoning vs GPT-5.21Phi-4 Mini Flash Reasoning vs Gemini Deep Research Preview1Phi-4 Mini Flash Reasoning vs Gemini 2.5 Pro Preview 06-051Phi-4 Mini Flash Reasoning vs Gemini 3.1 Flash-Lite1Phi-4 Mini Flash Reasoning vs GLM-5 9B1Phi-4 Mini Flash Reasoning vs GPT-5.2 Codex1Phi-4 Mini Flash Reasoning vs GPT-5.3-Codex1Phi-4 Mini Flash Reasoning vs GPT-5.41Phi-4 Mini Flash Reasoning vs GPT-2 XL1

Frequently asked questions

What is the context window of Phi-4 Mini Flash Reasoning?

Phi-4 Mini Flash Reasoning has a context window of 128k tokens.

When was Phi-4 Mini Flash Reasoning released?

Phi-4 Mini Flash Reasoning was released on 2025-12-01.

Which providers offer Phi-4 Mini Flash Reasoning?

Phi-4 Mini Flash Reasoning is available from 1 provider: NVIDIA NIM.