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Phi-4

by Microsoft · Text & Chat · Code

Microsoft’s small open model · runs on a laptop.

72/100AIVerso score
#52 of 54in Text & Chat
FreeStarting price
YesFree tier
Try Phi-4 →Compare with alternatives →

What is Phi-4?

Phi-4 is Microsoft’s small open language model family that punches above its size in reasoning. It runs on a laptop or modest GPU and is released under the permissive MIT license.

Best for

Phi-4 pricing

Phi-4 has a free tier. Price: Free.

Plans & prices

Prices as published by Microsoft. This page was last updated on November 13, 2026; prices and plans change often, so check the provider’s pricing page before you buy.

Check current Phi-4 prices →

At a glance

ProviderMicrosoft
CategoryText & Chat, Code
Starting priceFree
Free tierYes
API accessYes
Open sourceYes
Context window16K tokens
Mobile appNo

Key facts

Capability ratings

Math & Logice.g. AIME, MATH-500
78
Programminge.g. SWE-bench, LiveCodeBench
70
Reasoninge.g. GPQA, ARC
72
Knowledgee.g. MMLU-Pro
76
Long Contexte.g. MRCR, needle tests
65
Instruction Followinge.g. IFEval
78
Agent Capabilitye.g. Terminal-Bench, tool use
55

AIVerso capability ratings (0–100), an editorial summary informed by public benchmark results. Higher is better.

Features

✗ Image generation
✗ Video generation
✗ Native audio model
✗ Web search
✗ Voice mode (app)
✗ PDF analysis

Strengths

Free tier available
Open source / open weights — self-hostable
API access for developers

Limitations

No built-in web search
Small context window
No official mobile app

Best alternatives to Phi-4

Claude Fable 5.2
Anthropic · $8/$40 per 1M tokens — Higher score (99 vs 72)
99
Gemini 4 Carbon
Google · $2/$10 per 1M tokens (API, until Nov 30) — Higher score (98 vs 72)
98
GPT-6 Astra
OpenAI · From $20/mo (Plus) — Higher score (98 vs 72)
98
Fugu Ultra v2
Sakana AI · $5/$30 per 1M tokens — Higher score (97 vs 72)
97
Kimi K3.1 Pro
Moonshot AI · Free – API · free tier — Higher score (95 vs 72)
95

🔗 Comparisons & guides

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❓ Frequently Asked Questions

What is Phi-4?

Phi-4 is Microsoft’s small open language model family that punches above its size in reasoning. It runs on a laptop or modest GPU and is released under the permissive MIT license.

What is Phi-4 best for?

Phi-4 is a strong pick for: On-device or local AI; Low-cost inference at scale; Research and experimentation with small models.

How much does Phi-4 cost?

Phi-4 starts at Free (Free (Open Source)). A free tier is available.

Is Phi-4 free?

Yes — Phi-4 has a free tier. Pricing: Free (details: Free (Open Source)).

What are the best alternatives to Phi-4?

The highest-rated AI chatbots & text models from other providers on AIVerso are Claude Fable 5.2 (99/100), Gemini 4 Carbon (98/100), GPT-6 Astra (98/100).

Does Phi-4 have an API?

Yes, Phi-4 can be used via an API.

Is Phi-4 open source?

Yes — Phi-4 is available as open source / open weights, so it can be self-hosted.

How does AIVerso rate Phi-4?

Phi-4 scores 72/100 on AIVerso and ranks #52 of 54 in Text & Chat. Scores combine public benchmark results, features and pricing; commissions never influence them.

How we rate: Scores and capability ratings are based on public benchmarks, provider documentation, features and pricing — not on commission rates. Prices can change; check the provider's site before buying. Last updated: November 13, 2026.