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Comparison · 2 models · Updated Oct 4, 2026

MiMo-V2.5 vs Gemma 4 31B IT

MiMo-V2.5 comes out ahead, 79 to 70 on our weighted score, and it is the cheaper option too.

  1. Our pick

    Xiaomi

    MiMo-V2.5

    Released Apr 22, 2026

    79/100
    • ECI—
    • Price$0.14 / $0.28
    • Context1.05M
    Full specs Remove MiMo-V2.5

  2. Google

    Gemma 4 31B IT

    Released Apr 2, 2026

    70/100
    • ECI142.8
    • Price$0.14 / $0.40
    • Context262K
    Full specs Remove Gemma 4 31B IT

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

MiMo-V2.5 is our pick

MiMo-V2.5 is the better all-round choice, scoring 79/100 against Gemma 4 31B IT (70). It leads on price, inputs & features and context window. 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 priceMiMo-V2.5MiMo-V2.5 $0.175 · Gemma 4 31B IT $0.205 per 1M tokens (3:1 blend)
  • Longest contextMiMo-V2.5MiMo-V2.5 1,048,576 · Gemma 4 31B IT 262,144 tokens
  • Widest inputsMiMo-V2.5MiMo-V2.5: Text, Images, Audio, Video · Gemma 4 31B IT: Text, Images
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightMiMo-V2.5Gemma 4 31B IT
Price50%8683
Inputs & features30%8070
Context window20%6137
Overall100%79/10070/100

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.

MiMo-V2.5 vs Gemma 4 31B IT specifications side by side
SpecificationMiMo-V2.5XiaomiGemma 4 31B ITGoogle
Capability
Capabilities Index (ECI)—142.8
ECI rank—#86 of 148
GPQA DiamondGraduate-level science questions—75.8%
OTIS Mock AIME 2024–2025Competition mathematics—73.3%
SimpleQA VerifiedShort factual questions—10.4%
Price per million tokens
Input$0.14$0.14
Output$0.28 (best)$0.40
Cached input$0.0028—
Blended (3:1)$0.175 (best)$0.205
Long-context rateSame rateSame rate
Price sourceOfficial Xiaomi APIMedian of 30 providers
Limits
Context window1,048,576 tokens (best)262,144 tokens
Max output131,072 tokens (best)32,768 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioYesNo
VideoYesNo
ReasoningYesYes
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenOpen
API model IDmimo-v2.5gemma-4-31b-it
API providers2138 (best)
ReleasedApr 22, 2026Apr 2, 2026
Knowledge cutoffDec 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.

  • MiMo-V2.5$1.96
  • Gemma 4 31B IT$2.20
04 — Questions

Which should you choose?

Which is better: MiMo-V2.5 or Gemma 4 31B IT?

MiMo-V2.5 is the better all-round choice, scoring 79/100 against Gemma 4 31B IT (70). It leads on price, inputs & features and context window. 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, MiMo-V2.5 or Gemma 4 31B IT?

MiMo-V2.5 is cheaper at $0.14 input / $0.28 output per million tokens (official Xiaomi API price). Gemma 4 31B IT costs $0.14 input / $0.40 output per million tokens (median across 30 API providers). At a typical mix of three input tokens to one output token, that is $0.175 per million tokens for MiMo-V2.5 versus $0.205 for Gemma 4 31B IT (1.2× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. MiMo-V2.5 has not been scored yet and Gemma 4 31B IT has an ECI of 142.8.

Which is better for coding?

There are no published SWE-bench Verified results for MiMo-V2.5 and Gemma 4 31B IT 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?

MiMo-V2.5 has the largest context window at 1,048,576 tokens, against 262,144 for Gemma 4 31B IT. Maximum output per response: MiMo-V2.5 up to 131,072, Gemma 4 31B IT up to 32,768 tokens.

Which can read images, PDFs, audio or video?

MiMo-V2.5 accepts text, images, audio and video; Gemma 4 31B IT accepts text and images. MiMo-V2.5 handles the widest range of inputs.

Are any of these open source?

Yes, both publish their weights, so you can self-host them.

Which is newer?

MiMo-V2.5 is the newest, released Apr 22, 2026. Gemma 4 31B IT came out Apr 2, 2026. Knowledge cutoff: MiMo-V2.5 Dec 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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