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Model comparison

Gemini 3 Flash vs Kimi K2

Data verified

Head-to-head evidence from 14 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

60.49/100
Margin
33.3pts
← winning
Kimi K2
Moonshot AI
27.19/100
1 category wins0 category wins

Public leaderboard positions: Gemini 3 Flash #49 (Supported); Kimi K2 #189 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 3 Flash and Kimi K2 share 14 comparable benchmark results. 1 of 8 categories are comparable. 5 results are unique to Gemini 3 Flash; 0 to Kimi K2.

Updated July 20, 2026
Shared results
14
Gemini 3 Flash only
5
Kimi K2 only
0
Comparable categories
1 / 8

Pick Gemini 3 Flash if you want the stronger benchmark profile. Kimi K2 only becomes the better choice if you want the cheaper token bill.

Confidence note. This is a partial-evidence comparison with 14 shared benchmark results across 7 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Gemini 3 Flash is clearly ahead on the BenchAlign aggregate, 60.49 to 27.19. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemini 3 Flash's sharpest advantage is in mathematics, where it averages 27.8 against 16.1. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 35.640% to 21.404%.

Gemini 3 Flash is also the more expensive model on tokens at $0.50 input / $3.00 output per 1M tokens, versus $0.60 input / $2.50 output per 1M tokens for Kimi K2. Gemini 3 Flash gives you the larger context window at 1M, compared with 128K for Kimi K2.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Gemini 3 Flash and Kimi K2
CategoryGemini 3 FlashΔKimi K2
MathGemini 3 Flash27.8Margin← 11.7Kimi K216.1

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Gemini 3 FlashB · Kimi K2

  1. FrontierMath v2 (Tiers 1-3)

    Math
    Source ↗
    A 35.640%B 21.404%
    Winner: Gemini 3 FlashΔ 14.2
    FrontierMath v2 (Tiers 1-3): Gemini 3 Flash scored 35.640%; Kimi K2 scored 21.404%. Gemini 3 Flash wins this benchmark.

  2. FrontierMath v2 (Tier 4)

    Math
    Source ↗
    A 4.167%B 0.000%
    Winner: Gemini 3 FlashΔ 4.2
    FrontierMath v2 (Tier 4): Gemini 3 Flash scored 4.167%; Kimi K2 scored 0.000%. Gemini 3 Flash wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricGemini 3 FlashKimi K2Comparison
Input / output priceUSD per 1M tokensGemini 3 Flash$0.5 input / $3 outputKimi K2$0.6 input / $2.5 outputKimi K2 has the lower combined listed price.
Generation speedtokens per secondGemini 3 Flash159 tok/sKimi K243 tok/sGemini 3 Flash has the higher measured throughput.
First-answer latencyseconds to first tokenGemini 3 Flash1.19 sKimi K21.51 sGemini 3 Flash reaches the first token sooner.
Context windowmaximum listed tokensGemini 3 Flash1MKimi K2128KGemini 3 Flash lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 3 FlashKimi K2Result
Claw-EvalSource 49.2%—Not comparable
τ²-bench resultsSource 43.3%61.1%Kimi K2 leads
Gert LabsSource 56.63%—Not comparable
JobBenchSource 11.4%—Not comparable
Coding
BenchmarkGemini 3 FlashKimi K2Result
Vibe Code BenchSource 20.20%—Not comparable
AA-SciCodeSource 49.9%34.5%Gemini 3 Flash leads
Reasoning
BenchmarkGemini 3 FlashKimi K2Result
AA-LCRSource 48.0%51.0%Kimi K2 leads
CritPtSource 1.4%0.0%Gemini 3 Flash leads
Knowledge
BenchmarkGemini 3 FlashKimi K2Result
Artificial Analysis Intelligence IndexSource 27.4%19.4%Gemini 3 Flash leads
AA-GPQA DiamondSource 81.2%76.6%Gemini 3 Flash leads
AA-HLESource 14.1%7.0%Gemini 3 Flash leads
AA-Omniscience IndexSource -3.6%-27.5%Gemini 3 Flash leads
AA-Omniscience AccuracySource 45.5%26.8%Gemini 3 Flash leads
AA-Omniscience Hallucination RateSource 90.2%74.2%Kimi K2 leads
MathGemini 3 Flash wins
BenchmarkGemini 3 FlashKimi K2Result
FrontierMath v2 (Tiers 1-3)Source 35.640%21.404%Gemini 3 Flash leads
FrontierMath v2 (Tier 4)Source 4.167%0.000%Gemini 3 Flash leads
Multimodal
BenchmarkGemini 3 FlashKimi K2Result
AA-MMMU-ProSource 78.6%—Not comparable
Design Arena WebsiteSource 12281083Gemini 3 Flash leads
Inst. Following
BenchmarkGemini 3 FlashKimi K2Result
AA-IFBenchSource 55.1%41.5%Gemini 3 Flash leads
Frequently Asked Questions (2)

Which is better, Gemini 3 Flash or Kimi K2?

Gemini 3 Flash is ahead on BenchLM's BenchAlign leaderboard, 60.49 to 27.19. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 35.640% and 21.404%.

Which is better for math, Gemini 3 Flash or Kimi K2?

Gemini 3 Flash has the edge for math in this comparison, averaging 27.8 versus 16.1. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.

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Last updated: July 20, 2026

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