Skip to content

Gemini 3.1 Pro vs Kimi K2.5

Verdict

Gemini 3.1 Pro leads 15–0 across 15 shared benchmarks.

Gemini 3.1 Pro 15 · Kimi K2.5 0 · higher isn't always better — see caveats.

Per-benchmark head-to-head

Reported scores — protocols may differ. How we compare

Sort
Gemini 3.1 ProKimi K2.5

Capabilities

Reasoning

Reasoning: Gemini 3.1 Pro leads 5–0 across 5 shared reasoning benchmarks (largest gap: SimpleQA Verified, 77.3 vs 33.9 — single evaluator).

4 reproduced6 unverified

Context Learning

Context Learning: Gemini 3.1 Pro leads 2–0 across 2 shared context learning benchmarks (largest gap: CL-bench Life, 16.9 vs 13.2 — protocols undisclosed).

4 unverified

What the labs claim

Vendor claims — compare against the measured scores above. A claim is what a developer says about its own model, not an independent measurement.

Gemini 3.1 Pro

Agentic / Tool Use

  • “Gemini 3.1 Pro was evaluated across a range of benchmarks, including reasoning, multimodal capabilities, agentic tool use, multi-lingual performance, and long-context.”
    deepmind.google2026

Multimodal

  • “a suite of highly capable, natively multimodal reasoning models”
    deepmind.google2026

Reasoning

  • “Gemini 3.1 Pro is Google's most advanced model for complex tasks.”
    deepmind.google2026

Kimi K2.5

Agentic / Tool Use

  • “It seamlessly integrates vision and language understanding with advanced agentic capabilities, instant and thinking modes, as well as conversational and agentic paradigms.”
    github.com2026
  • “K2.5 transitions from single-agent scaling to a self-directed, coordinated swarm-like execution scheme.”
    github.com2026

Coding

  • “K2.5 generates code from visual specifications (UI designs, video workflows) and autonomously orchestrates tools for visual data processing.”
    github.com2026

Multimodal

  • “Kimi K2.5 is an open-source, native multimodal agentic model built through continual pretraining on approximately 15 trillion mixed visual and text tokens atop Kimi-K2-Base.”
    github.com2026
A higher number is not always a better model. Each score is task performance under a disclosed harness. Of the 30 measurements across 15 shared benchmarks, 30 single-evaluator or undisclosed-protocol reports; 33% are independently reproduced. Kimi K2.5 pricing is cross-check disputed — weigh cost claims with the same caution as benchmark wins. Follow any benchmark to its integrity grade before reading a win as decisive.

Follow the record

These models

Same tier

Gemini 3.1 Pro vs …

Kimi K2.5 vs …