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Kimi K2.5 vs Seed 2.1 Pro Preview

26 SHARED BENCHMARKS

Across 26 shared benchmarks, Kimi K2.5 scores higher on 0 and Seed 2.1 Pro Preview on 26. The widest gap is GDPVal, where Seed 2.1 Pro Preview scores 87.9 against 16.2.

MOONSHOTVSBYTEDANCE26 SHARED0–26 HEAD-TO-HEADNEWEST SCORE ADDED

At a glance

MakerMoonshotByteDance
Released—
Price per 1M tokens input / output$0.60 / $3.00—
Cost of 1M in + 1M out$3.60—
Head-to-head of 26 shared benchmarks0 wins26 wins
Scores tracked independently verified172 26 ◆66 1 ◆

Kimi K2.5's release date per Artificial Analysis. Prices: Artificial Analysis for Kimi K2.5. ◆ = independently verified score.

Where each leadsby capability area · benchmark wins

AreaKimi K2.5WINSSeed 2.1 Pro Preview
Reasoning02Seed 2.1 Pro Preview leads 2 of 2 · widest: ARC-AGI-2 11.8 vs 62.5
Coding04Seed 2.1 Pro Preview leads 4 of 4 · widest: Terminal-Bench 2.1 45.7 vs 71
Agentic05Seed 2.1 Pro Preview leads 5 of 5 · widest: GDPVal 16.2 vs 87.9
Multimodal04Seed 2.1 Pro Preview leads 4 of 4 · widest: CharXiv (RQ) 77.5 vs 86.4

Biggest gaps

Kimi K2.5 pulls furthest ahead on

No ratified-area lead of 3 points or more.

Seed 2.1 Pro Preview pulls furthest ahead on

  1. GDPVal87.9 vs 16.2
  2. ARC-AGI-262.5 vs 11.8
  3. AA ApexAgents33.8 vs 11.5

Every shared benchmark26 · grouped by area

Reasoning 2

Coding 4

Agentic 5

Multimodal 4

CharXiv (RQ)77.586.4
MathVista90.190.7
MMMU-Pro75.482.7
Video-MME87.489.2

Other shared benchmarks 11

BabyVision36.573.7
CyberGym41.370.2
LVBench75.978
MATH-Vision84.294.5
MotionBench70.474.9
SimpleVQA71.274.5
Toolathlon27.850.6
WorldVQA46.353

Each score is the one the model's own page shows — the most authoritative tracked result for that benchmark, on the benchmark's standard methodology (source-attributed). ↓ marks lower-is-better metrics; ◆ an independently verified score. Open either model for its full surface, provenance and pricing.

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