AI Models · Open-Source vs Paid

Phi 4 Open vs Mistral Large Paid

Phi 4 vs Mistral Large compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Phi 4OpenMicrosoft
$0.07 /M input
$0.14 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window16K tokens
MultimodalNo
Self-hostYes
Mistral LargePaidMistral AI
$2 /M input
$6 /M outputManaged API (no infra to run)
TypeProprietary
Context window128K tokens
MultimodalNo
Self-hostNo
Choose Phi 4 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mistral Large if you want frontier capability through a managed API with zero infrastructure to run.

Phi 4 vs Mistral Large specs

SpecPhi 4Mistral LargeWinner
MakerMicrosoftMistral AI
TypeOpen-weightProprietaryPhi 4
Context window16K tokens128K tokensMistral Large
Input price$0.07/M · free self-host$2/MPhi 4
Output price$0.14/M · free self-host$6/MPhi 4
Vision / multimodalNoNo
Tool / function callingNoYesMistral Large
Self-hostableYesNo (API only)Phi 4
LicenseMITProprietaryPhi 4

Price gap & when to choose each

43×cheaper per output token

Phi 4 is ~43× cheaper than Mistral Large on output tokens ($0.14 vs $6 per M tokens).

Choose Phi 4 if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Mistral Large if…
  • You want frontier performance through a managed API
  • You need the longer 128K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityPhi 4Mistral Large
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Phi 4 vs Mistral Large

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Phi 4 delivers 12× more intelligence per dollar.
Phi 4
Mistral Large
Intelligence index
5.9
6.8
Math index
18
0
GPQA
57.5%
47.2%
MMLU-Pro
71.4%
68.3%
Humanity's Last Exam
3.8%
2.9%
Long Context Reasoning
0%
2%
LiveCodeBench
23.1%
26.7%
MATH-500
81%
71.4%
AIME
14.3%
9.3%
AIME 2025
18%
0%
IFBench
23.5%
31.6%
τ²-Bench
0%
33%
Terminal-Bench Hard
3.8%
Speed
43.7 tok/s
0 tok/s
Latency
0.95s
0s
Intelligence per $
26.9
2.3

Benchmark data by Artificial Analysis.

How Phi 4 and Mistral Large score

🏆 Best value & openness: Phi 4 (3.8 vs 2.7 / 5)
CriterionPhi 4Mistral Large
Cost-efficiency5.04.0
Context window2.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality2.03.5

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Phi 4 Open

Microsoft · Open-weight

[Microsoft Research](/microsoft) Phi-4 is designed to perform well in complex reasoning tasks and can operate efficiently in situations with limited memory or where quick responses are needed. At 14 billion...

Mistral Large Paid

Mistral AI · Proprietary

This is Mistral AI's flagship model, Mistral Large 2 (version `mistral-large-2407`). It's a proprietary weights-available model and excels at reasoning, code, JSON, chat, and more. Read the launch announcement [here](https://mistral.ai/news

Frequently asked questions

Is Phi 4 as good as Mistral Large?

Phi 4 is open-weight and competitive on many tasks, but Mistral Large may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Phi 4 locally?

Yes. Phi 4 has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Mistral Large is API-only and cannot be self-hosted.

How much cheaper is Phi 4?

Phi 4 costs $0.14/M output vs $6/M for Mistral Large — roughly 43x cheaper via API, and free if you self-host.

Phi 4 vs Mistral Large — which should I pick in 2026?

Choose Phi 4 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mistral Large if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →