ZMIME
Comparison · 3 models · Updated Oct 4, 2026

Mistral Medium 3 vs Grok 4.3 vs GPT-4.1 mini

Grok 4.3 comes out ahead, 67 to 60 and 53 on our weighted score, though GPT-4.1 mini is 2.2× cheaper per token.

  1. 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
  2. Our pick

    xAI

    Grok 4.3

    Released Apr 17, 2026

    67/100
    • ECI149.2
    • Price$1.25 / $2.50
    • Context1M
    Full specs Remove Grok 4.3

  3. OpenAI

    GPT-4.1 mini

    Released Apr 14, 2025

    60/100
    • ECI135.0
    • Price$0.40 / $1.60
    • Context1.05M
    Full specs Remove GPT-4.1 mini
01 — Verdict

Grok 4.3 is our pick

Grok 4.3 is the better all-round choice, scoring 67/100 against GPT-4.1 mini (60) and Mistral Medium 3 (53). It leads on capability and inputs & features. GPT-4.1 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGrok 4.3Capabilities Index (ECI): Grok 4.3 149.2 · GPT-4.1 mini 135.0 · Mistral Medium 3 134.1
  • Lowest priceGPT-4.1 miniGPT-4.1 mini $0.70 · Mistral Medium 3 $0.80 · Grok 4.3 $1.56 per 1M tokens (3:1 blend)
  • Longest contextGPT-4.1 miniGPT-4.1 mini 1,047,576 · Grok 4.3 1,000,000 · Mistral Medium 3 131,072 tokens
  • Widest inputsGrok 4.3 and GPT-4.1 miniMistral Medium 3: Text, Images · Grok 4.3: Text, Images, PDFs · GPT-4.1 mini: Text, Images, PDFs
  • Self-hostingNo open weightsAll three are available only through APIs
How the score is built
MeasureWeightMistral Medium 3Grok 4.3GPT-4.1 mini
CapabilityCapabilities Index (ECI)50%587759
Price25%544157
Inputs & features15%508070
Context window10%246061
Overall100%53/10067/10060/100
02 — Side by side

Every spec in one table

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

Mistral Medium 3 vs Grok 4.3 vs GPT-4.1 mini specifications side by side
SpecificationMistral Medium 3Mistral AIGrok 4.3xAIGPT-4.1 miniOpenAI
Capability
Capabilities Index (ECI)134.1149.2 (best)135.0
ECI rank#117 of 148#55 of 148 (best)#115 of 148
GPQA DiamondGraduate-level science questions59.5%88.8% (best)65.9%
FrontierMath Tiers 1–3Research-level mathematics—42.8% (best)6.7%
OTIS Mock AIME 2024–2025Competition mathematics32.2%93.3% (best)44.7%
SimpleQA VerifiedShort factual questions—33.2% (best)12.7%
Price per million tokens
Input$0.40 (best)$1.25$0.40 (best)
Output$2.00$2.50$1.60 (best)
Cached input—$0.20$0.10 (best)
Blended (3:1)$0.80$1.56$0.70 (best)
Long-context rateSame rateOver 200K: $2.50 / $5.00Same rate
Price sourceOfficial Mistral APIOfficial xAI APIOfficial OpenAI API
Limits
Context window131,072 tokens1,000,000 tokens1,047,576 tokens (best)
Max output131,072 tokens (best)30,000 tokens32,768 tokens
Inputs and features
TextYesYesYes
ImagesYesYesYes
PDFsNoYesYes
AudioNoNoNo
VideoNoNoNo
ReasoningNoYeslow · medium · highNo
Tool callingYesYesYes
Structured outputNoYesYes
Availability
WeightsProprietaryProprietaryProprietary
API model IDmistral-medium-2505grok-4.3gpt-4.1-mini
API providers527 (best)24
ReleasedMay 7, 2025Apr 17, 2026Apr 14, 2025
Knowledge cutoffMay 2025—Apr 2024
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.

  • Mistral Medium 3$8.00
  • Grok 4.3$17.50
  • GPT-4.1 mini$7.20
04 — Questions

Which should you choose?

Which is better: Mistral Medium 3, Grok 4.3 or GPT-4.1 mini?

Grok 4.3 is the better all-round choice, scoring 67/100 against GPT-4.1 mini (60) and Mistral Medium 3 (53). It leads on capability and inputs & features. GPT-4.1 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Mistral Medium 3, Grok 4.3 or GPT-4.1 mini?

GPT-4.1 mini is cheaper at $0.40 input / $1.60 output per million tokens (official OpenAI API price). Mistral Medium 3 costs $0.40 input / $2.00 output per million tokens (official Mistral API price); Grok 4.3 costs $1.25 input / $2.50 output per million tokens (official xAI API price). At a typical mix of three input tokens to one output token, that is $0.70 per million tokens for GPT-4.1 mini versus $0.80 for Mistral Medium 3 (1.1× as much) and $1.56 for Grok 4.3 (2.2× as much).

Which scores higher on benchmarks?

Grok 4.3 scores higher on the Capabilities Index (ECI): Grok 4.3 149.2 (#55 of 148), GPT-4.1 mini 135.0 (#115 of 148) and Mistral Medium 3 134.1 (#117 of 148). Their confidence ranges do not overlap (147.6–150.8 vs 131.2–136.6), so the gap is a real one. On individual benchmarks: GPQA Diamond — Grok 4.3 88.8%, GPT-4.1 mini 65.9%, Mistral Medium 3 59.5%; OTIS Mock AIME 2024–2025 — Grok 4.3 93.3%, GPT-4.1 mini 44.7%, Mistral Medium 3 32.2%.

Which is better for coding?

There are no published SWE-bench Verified results for Mistral Medium 3, Grok 4.3 and GPT-4.1 mini yet, so there is no like-for-like coding score. On overall capability, Grok 4.3 leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.

Which has the bigger context window?

GPT-4.1 mini has the largest context window at 1,047,576 tokens, against 1,000,000 for Grok 4.3 and 131,072 for Mistral Medium 3. Maximum output per response: Mistral Medium 3 up to 131,072, Grok 4.3 up to 30,000, GPT-4.1 mini up to 32,768 tokens.

Which can read images, PDFs, audio or video?

Mistral Medium 3 accepts text and images; Grok 4.3 accepts text, images and PDFs; GPT-4.1 mini accepts text, images and PDFs. Grok 4.3 handles the widest range of inputs.

Are any of these open source?

No. Mistral Medium 3, Grok 4.3 and GPT-4.1 mini are proprietary and only available through APIs and apps.

Which is newer?

Grok 4.3 is the newest, released Apr 17, 2026. Mistral Medium 3 came out May 7, 2025; GPT-4.1 mini came out Apr 14, 2025. Knowledge cutoff: Mistral Medium 3 May 2025, GPT-4.1 mini Apr 2024.

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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