Model comparison
Gemini 2.5 Pro vs Kimi K2.5 Instant
Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 42.9 on the Noometry Index.
Last verified . 18 shared benchmarks.
GoogleSummary
- They share 18 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 7 categories and Kimi K2.5 Instant in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 2.5 Pro leads 55.8 to 39.5.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Gemini 2.5 Pro | Kimi K2.5 Instant | |
|---|---|---|
| Provider | Moonshot AI | |
| Noometry Index | 44.9 | 42.9 |
| Released | 2025-03-25 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 78 | 18 |
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Category by category
Coding Too close to call
Gemini 2.5 Pro: 42.8 (#86), Kimi K2.5 Instant: 42.3 (#95)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena WebDev | 1227 | 1404 |
| LMArena Coding | 1452 | 1483 |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| Aider Polyglot | 83.1% | — |
| SciCode | 42.8% | — |
| GSO | 3.9% | — |
| WeirdML | 54% | — |
| LiveBench Coding | 85.9% | — |
| CadEval | 64% | — |
| ALE-Bench | 785.52 | — |
| AlgoTune | 1.51 | — |
Agentic & Tool Use Not comparable
Gemini 2.5 Pro: 29.1 (#81), Kimi K2.5 Instant: —
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| Terminal-Bench | 32.6% | — |
| GDPval | 23.3% | — |
| Remote Labor Index | 0.8% | — |
| TheAgentCompany | 30.3% | — |
| τ²-bench Banking | 13.7% | — |
| DeepResearch Bench | 42.8% | — |
| BALROG | 43.3% | — |
| LMArena Search | 1142 | — |
| METR Time Horizons | 55.4% | — |
| Vending-Bench 2 | 573.64 | — |
Reasoning Too close to call
Gemini 2.5 Pro: 28.8 (#85), Kimi K2.5 Instant: 28.5 (#88)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Hard Prompts | 1455 | 1443 |
| ARC-AGI-2 | 4.9% | — |
| SimpleBench | 62.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 41% | — |
| CritPt | 2% | — |
| Chess Puzzles | 20% | — |
| EnigmaEval | 5.6% | — |
| LiveBench Reasoning | 89.8% | — |
| DTBench | 82.4% | — |
| LiveBench Data Analysis | 79.9% | — |
| LMCA | 34.8% | — |
| Epoch Capabilities Index | 145.32 | — |
| ForecastBench | 61.3 | — |
| LiveBench | 82.3% | — |
Math Kimi K2.5 Instant leads
Gemini 2.5 Pro: 31.9 (#191), Kimi K2.5 Instant: 36.6 (#105)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | 1450 | 1443 |
| FrontierMath (Tiers 1-3) | 24.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 84.7% | — |
| Omni-MATH | 41.6% | — |
| LiveBench Math | 90.2% | — |
| MATH Level 5 | 95.9% | — |
| FrontierMath (Feb 2025 set) | 14.1% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Gemini 2.5 Pro leads
Gemini 2.5 Pro: 55.8 (#41), Kimi K2.5 Instant: 39.5 (#121)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | 1452 | 1438 |
| GPQA Diamond | 85.3% | — |
| Humanity's Last Exam | 21.6% | — |
| MMLU-Pro | 86.3% | — |
| Confabulations | 10.6% | — |
| Vectara Hallucination Rate | 7% | — |
| GPQA (HELM) | 74.9% | — |
Multimodal Gemini 2.5 Pro leads
Gemini 2.5 Pro: 44.5 (#16), Kimi K2.5 Instant: 39.5 (#47)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | 1263 | 1254 |
| GeoBench | 86% | — |
| VPCT | 48% | — |
| LMArena Document | 1421 | — |
| SpatialViz-Bench | 44.7% | — |
Multilingual Gemini 2.5 Pro leads
Gemini 2.5 Pro: 55.5 (#30), Kimi K2.5 Instant: 52.2 (#89)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | 1452 | 1406 |
| LMArena Chinese | 1507 | 1450 |
| LMArena French | 1473 | 1403 |
| LMArena German | 1487 | 1413 |
| LMArena Korean | 1435 | 1378 |
| LMArena Russian | 1460 | 1404 |
| LMArena Spanish | 1473 | 1448 |
| LMArena Japanese | 1462 | — |
Instruction Following Too close to call
Gemini 2.5 Pro: 75.2 (#71), Kimi K2.5 Instant: 75.5 (#61)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | 1436 | 1430 |
| LiveBench Instruction Following | 80.6% | — |
| IFEval | 84% | — |
Long Context Gemini 2.5 Pro leads
Gemini 2.5 Pro: 59.7 (#5), Kimi K2.5 Instant: 43.8 (#82)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | 1449 | 1435 |
| Fiction.LiveBench | 91.7% | — |
Writing & Preference Gemini 2.5 Pro leads
Gemini 2.5 Pro: 63.9 (#60), Kimi K2.5 Instant: 60.8 (#91)
| Benchmark | Gemini 2.5 Pro | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | 1458 | 1420 |
| LMArena Creative Writing | 1453 | 1379 |
| LMArena Multi-Turn | 1453 | 1427 |
| Short-Story Creative Writing | 83.8% | — |
| EQ-Bench Creative Writing | 1421 | — |
| WildBench | 85.7% | — |
| LiveBench Language | 67.8% | — |
Frequently asked questions
Is Gemini 2.5 Pro better than Kimi K2.5 Instant?
Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 42.9 on the Noometry Index.
Is Gemini 2.5 Pro or Kimi K2.5 Instant better for coding?
They score almost the same on coding (42.8 vs 42.3); test both on your own repository before choosing.
How many benchmarks do Gemini 2.5 Pro and Kimi K2.5 Instant share?
18 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Kimi K2.5 Instant has 18.