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Comparison · 2 models · Updated Oct 4, 2026

MiniCPM5-2B vs Gemma 4 31B IT

Gemma 4 31B IT comes out ahead, 70 to 53 on our weighted score, and it is the cheaper option too.

  1. OpenBMB

    MiniCPM5-2B

    Released Sep 6, 2026

    53/100
    • ECI—
    • Price$0.124 / $0.743
    • Context131K
    Full specs Remove MiniCPM5-2B
  2. Our pick

    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

Gemma 4 31B IT is our pick

Gemma 4 31B IT is the better all-round choice, scoring 70/100 against MiniCPM5-2B (53). 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 priceGemma 4 31B ITGemma 4 31B IT $0.205 · MiniCPM5-2B $0.279 per 1M tokens (3:1 blend)
  • Longest contextGemma 4 31B ITGemma 4 31B IT 262,144 · MiniCPM5-2B 131,072 tokens
  • Widest inputsGemma 4 31B ITMiniCPM5-2B: Text · 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
MeasureWeightMiniCPM5-2BGemma 4 31B IT
Price50%7683
Inputs & features30%3570
Context window20%2437
Overall100%53/10070/100

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.

MiniCPM5-2B vs Gemma 4 31B IT specifications side by side
SpecificationMiniCPM5-2BOpenBMBGemma 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$0.124 (best)$0.14
Output$0.743$0.40 (best)
Cached input——
Blended (3:1)$0.279$0.205 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 1 providersMedian of 30 providers
Limits
Context window131,072 tokens262,144 tokens (best)
Max output131,072 tokens (best)32,768 tokens
Inputs and features
TextYesYes
ImagesNoYes
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYesYes
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenapache-2.0Open
API model ID—gemma-4-31b-it
API providers138 (best)
ReleasedSep 6, 2026Apr 2, 2026
Knowledge cutoff——
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.

  • MiniCPM5-2B$2.73
  • Gemma 4 31B IT$2.20
04 — Questions

Which should you choose?

Which is better: MiniCPM5-2B or Gemma 4 31B IT?

Gemma 4 31B IT is the better all-round choice, scoring 70/100 against MiniCPM5-2B (53). 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, MiniCPM5-2B or Gemma 4 31B IT?

Gemma 4 31B IT is cheaper at $0.14 input / $0.40 output per million tokens (median across 30 API providers). MiniCPM5-2B costs $0.124 input / $0.743 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.205 per million tokens for Gemma 4 31B IT versus $0.279 for MiniCPM5-2B (1.4× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. MiniCPM5-2B 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 MiniCPM5-2B 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?

Gemma 4 31B IT has the largest context window at 262,144 tokens, against 131,072 for MiniCPM5-2B. Maximum output per response: MiniCPM5-2B up to 131,072, Gemma 4 31B IT up to 32,768 tokens.

Which can read images, PDFs, audio or video?

MiniCPM5-2B accepts text; Gemma 4 31B IT accepts text and images. Gemma 4 31B IT handles the widest range of inputs.

Are any of these open source?

Yes, both publish their weights (apache-2.0), so you can self-host them.

Which is newer?

MiniCPM5-2B is the newest, released Sep 6, 2026. Gemma 4 31B IT came out Apr 2, 2026.

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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