ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Grok 4.1 Fast vs Mistral Small 3.2

Grok 4.1 Fast comes out ahead, 71 to 64 on our weighted score, though Mistral Small 3.2 is 45% cheaper per token.

  1. Our pick

    xAI

    Grok 4.1 Fast

    Released Nov 19, 2025

    71/100
    • ECI—
    • Price$0.20 / $0.50
    • Context2M
    Full specs Remove Grok 4.1 Fast

  2. Mistral AI

    Mistral Small 3.2

    Released Jun 20, 2025

    64/100
    • ECI131.7
    • Price$0.10 / $0.30
    • Context128K
    Full specs Remove Mistral Small 3.2

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Grok 4.1 Fast is our pick

Grok 4.1 Fast is the better all-round choice, scoring 71/100 against Mistral Small 3.2 (64). It leads on inputs & features and context window. Mistral Small 3.2 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceMistral Small 3.2Mistral Small 3.2 $0.15 · Grok 4.1 Fast $0.275 per 1M tokens (3:1 blend)
  • Longest contextGrok 4.1 FastGrok 4.1 Fast 2,000,000 · Mistral Small 3.2 128,000 tokens
  • Widest inputsSame inputsGrok 4.1 Fast: Text, Images · Mistral Small 3.2: Text, Images
  • Self-hostingMistral Small 3.2Publishes downloadable weights
How the score is built
MeasureWeightGrok 4.1 FastMistral Small 3.2
Price50%7689
Inputs & features30%6050
Context window20%7224
Overall100%71/10064/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

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

Grok 4.1 Fast vs Mistral Small 3.2 specifications side by side
SpecificationGrok 4.1 FastxAIMistral Small 3.2Mistral AI
Capability
Capabilities Index (ECI)—131.7
ECI rank—#123 of 148
GPQA DiamondGraduate-level science questions—49.1%
OTIS Mock AIME 2024–2025Competition mathematics—30.3%
Price per million tokens
Input$0.20$0.10 (best)
Output$0.50$0.30 (best)
Cached input——
Blended (3:1)$0.275$0.15 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 2 providersOfficial Mistral API
Limits
Context window2,000,000 tokens (best)128,000 tokens
Max output30,000 tokens (best)16,384 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningNoNo
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryOpen
API model ID—mistral-small-2506
API providers26 (best)
ReleasedNov 19, 2025Jun 20, 2025
Knowledge cutoff—Mar 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.

  • Grok 4.1 Fast$3.00
  • Mistral Small 3.2$1.60
04 — Questions

Which should you choose?

Which is better: Grok 4.1 Fast or Mistral Small 3.2?

Grok 4.1 Fast is the better all-round choice, scoring 71/100 against Mistral Small 3.2 (64). It leads on inputs & features and context window. Mistral Small 3.2 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Grok 4.1 Fast or Mistral Small 3.2?

Mistral Small 3.2 is cheaper at $0.10 input / $0.30 output per million tokens (official Mistral API price). Grok 4.1 Fast costs $0.20 input / $0.50 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.15 per million tokens for Mistral Small 3.2 versus $0.275 for Grok 4.1 Fast (1.8× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Grok 4.1 Fast has not been scored yet and Mistral Small 3.2 has an ECI of 131.7.

Which is better for coding?

There are no published SWE-bench Verified results for Grok 4.1 Fast and Mistral Small 3.2 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Grok 4.1 Fast has the largest context window at 2,000,000 tokens, against 128,000 for Mistral Small 3.2. Maximum output per response: Grok 4.1 Fast up to 30,000, Mistral Small 3.2 up to 16,384 tokens.

Which can read images, PDFs, audio or video?

Grok 4.1 Fast accepts text and images; Mistral Small 3.2 accepts text and images. They handle the same number of input types.

Are any of these open source?

Mistral Small 3.2 publishes its weights and can be self-hosted; Grok 4.1 Fast is proprietary.

Which is newer?

Grok 4.1 Fast is the newest, released Nov 19, 2025. Mistral Small 3.2 came out Jun 20, 2025. Knowledge cutoff: Mistral Small 3.2 Mar 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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