ZMIME
Comparison · 2 models · Updated Oct 4, 2026

GPT-4.1 vs Mistral Medium 3

Too close to call on our weighted score (GPT-4.1 53, Mistral Medium 3 53). The right pick depends on what you value most.

  1. OpenAI

    GPT-4.1

    Released Apr 14, 2025

    53/100
    • ECI136.8
    • Price$2.00 / $8.00
    • Context1.05M
    Full specs Remove GPT-4.1

  2. Mistral AI

    Mistral Medium 3

    Released May 7, 2025

    53/100
    • ECI134.1
    • Price$0.40 / $2.00
    • Context131K
    Full specs Remove Mistral Medium 3

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01 — Verdict

Too close to call

It is close. Our weighted score puts them within a point (GPT-4.1 53/100, Mistral Medium 3 53/100), so choose by what matters most for your work: GPT-4.1 for raw capability and Mistral Medium 3 on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-4.1Capabilities Index (ECI): GPT-4.1 136.8 · Mistral Medium 3 134.1
  • Lowest priceMistral Medium 3Mistral Medium 3 $0.80 · GPT-4.1 $3.50 per 1M tokens (3:1 blend)
  • Longest contextGPT-4.1GPT-4.1 1,047,576 · Mistral Medium 3 131,072 tokens
  • Widest inputsGPT-4.1GPT-4.1: Text, Images, PDFs · Mistral Medium 3: Text, Images
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGPT-4.1Mistral Medium 3
CapabilityCapabilities Index (ECI)50%6158
Price25%2454
Inputs & features15%7050
Context window10%6124
Overall100%53/10053/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

GPT-4.1 vs Mistral Medium 3 specifications side by side
SpecificationGPT-4.1OpenAIMistral Medium 3Mistral AI
Capability
Capabilities Index (ECI)136.8 (best)134.1
ECI rank#111 of 148 (best)#117 of 148
GPQA DiamondGraduate-level science questions66.9% (best)59.5%
FrontierMath Tiers 1–3Research-level mathematics6.0%—
OTIS Mock AIME 2024–2025Competition mathematics38.3% (best)32.2%
SWE-bench VerifiedFixing real GitHub issues48.5%—
SimpleQA VerifiedShort factual questions31.1%—
Price per million tokens
Input$2.00$0.40 (best)
Output$8.00$2.00 (best)
Cached input$0.50—
Blended (3:1)$3.50$0.80 (best)
Long-context rateSame rateSame rate
Price sourceOfficial OpenAI APIOfficial Mistral API
Limits
Context window1,047,576 tokens (best)131,072 tokens
Max output32,768 tokens131,072 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesNo
AudioNoNo
VideoNoNo
ReasoningNoNo
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryProprietary
API model IDgpt-4.1mistral-medium-2505
API providers25 (best)5
ReleasedApr 14, 2025May 7, 2025
Knowledge cutoffApr 2024May 2025
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • GPT-4.1$36.00
  • Mistral Medium 3$8.00
04 — Questions

Which should you choose?

Which is better: GPT-4.1 or Mistral Medium 3?

It is close. Our weighted score puts them within a point (GPT-4.1 53/100, Mistral Medium 3 53/100), so choose by what matters most for your work: GPT-4.1 for raw capability and Mistral Medium 3 on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, GPT-4.1 or Mistral Medium 3?

Mistral Medium 3 is cheaper at $0.40 input / $2.00 output per million tokens (official Mistral API price). GPT-4.1 costs $2.00 input / $8.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $0.80 per million tokens for Mistral Medium 3 versus $3.50 for GPT-4.1 (4.4× as much).

Which scores higher on benchmarks?

GPT-4.1 scores higher on the Capabilities Index (ECI): GPT-4.1 136.8 (#111 of 148) and Mistral Medium 3 134.1 (#117 of 148). The confidence ranges of the top two overlap (133.6–138.4 vs 130.5–135.6), so treat the gap as small. On individual benchmarks: GPQA Diamond — GPT-4.1 66.9%, Mistral Medium 3 59.5%; OTIS Mock AIME 2024–2025 — GPT-4.1 38.3%, Mistral Medium 3 32.2%.

Which is better for coding?

There are no published SWE-bench Verified results for Mistral Medium 3 yet, so there is no like-for-like coding score. On overall capability, GPT-4.1 leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

GPT-4.1 has the largest context window at 1,047,576 tokens, against 131,072 for Mistral Medium 3. Maximum output per response: GPT-4.1 up to 32,768, Mistral Medium 3 up to 131,072 tokens.

Which can read images, PDFs, audio or video?

GPT-4.1 accepts text, images and PDFs; Mistral Medium 3 accepts text and images. GPT-4.1 handles the widest range of inputs.

Are any of these open source?

No. GPT-4.1 and Mistral Medium 3 are proprietary and only available through APIs and apps.

Which is newer?

Mistral Medium 3 is the newest, released May 7, 2025. GPT-4.1 came out Apr 14, 2025. Knowledge cutoff: GPT-4.1 Apr 2024, Mistral Medium 3 May 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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