Model comparison
DeepSeek-V3 vs Kimi K2.6
Kimi K2.6 is the stronger model overall, scoring 47.7 to 39.5 on the Noometry Index. DeepSeek-V3 costs 4.2× less per token, which makes it the better buy when Kimi K2.6's lead doesn't matter for your workload.
Last verified . 28 shared benchmarks.
DeepSeekSummary
- They share 28 benchmarks with published results for both. DeepSeek-V3 scores higher in 0 categories and Kimi K2.6 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Kimi K2.6 leads 57.0 to 32.1.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 37.8% for DeepSeek-V3 and 96.1% for Kimi K2.6.
- DeepSeek-V3 is cheaper at $0.24 / $0.90 per million input/output tokens, against $0.95 / $4 for Kimi K2.6.
- Kimi K2.6 accepts more context: 262K tokens versus 164K.
Side by side
| DeepSeek-V3 | Kimi K2.6 | |
|---|---|---|
| Provider | DeepSeek | Moonshot AI |
| Noometry Index | 39.5 | 47.7 |
| Released | 2024-12-26 | 2026-04-20 |
| Weights | Open | Open |
| Context window | 164K | 262K |
| Max output | 164K | 262K |
| Input $ / M tokens | $0.24 | $0.95 |
| Output $ / M tokens | $0.90 | $4 |
| Results tracked | 60 | 51 |
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Category by category
Coding Kimi K2.6 leads
DeepSeek-V3: 42.3 (#106), Kimi K2.6: 50.7 (#43)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| SciCode | 35.8% | 53.5% |
| WeirdML | 36.1% | 55.9% |
| LMArena Coding | 1368 | 1488 |
| SWE-bench Verified | — | 76.7% |
| Aider Polyglot | 55.1% | — |
| LMArena WebDev | — | 1509 |
| BigCodeBench Instruct | 50% | — |
| LiveBench Coding | 70.9% | — |
| BigCodeBench Complete | 62.2% | — |
| ALE-Bench | — | 1,093 |
| HumanEval+ | 86.6% | — |
| MBPP+ | 73% | — |
Agentic & Tool Use Not comparable
DeepSeek-V3: —, Kimi K2.6: 21.9 (#137)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| OSWorld 2.0 | — | 4.6% |
| ExploitBench | — | 18.4% |
| GBAEval | — | 0.9% |
| GDP.pdf | — | 12% |
| METR Time Horizons | 49.6% | — |
| Vending-Bench 2 | — | 6,205 |
Reasoning Kimi K2.6 leads
DeepSeek-V3: 20.5 (#236), Kimi K2.6: 40.5 (#55)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| CritPt | 0% | 8% |
| LMArena Hard Prompts | 1365 | 1470 |
| DTBench | 64.8% | 90.9% |
| LMCA | 15.5% | 37.3% |
| Epoch Capabilities Index | 135.94 | 151.05 |
| SimpleBench | 27.2% | — |
| Kagi LLM Benchmark | 52.3% | — |
| NYT Connections (extended) | — | 87.2% |
| Chess Puzzles | — | 26% |
| EBR-Bench | — | 2.4% |
| LiveBench Reasoning | 65.8% | — |
| Mystery Game Puzzles | — | 18% |
| LiveBench Data Analysis | 60.9% | — |
| BIG-Bench Hard | 87.5% | — |
| ForecastBench | 59.1 | — |
| HellaSwag | 88.9% | — |
| LiveBench | 66.9% | — |
| PIQA | 84.7% | — |
| WinoGrande | 85.2% | — |
Math Kimi K2.6 leads
DeepSeek-V3: 32.1 (#219), Kimi K2.6: 57.0 (#41)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 37.8% | 96.1% |
| LMArena Math | 1373 | 1475 |
| FrontierMath (Feb 2025 set) | 1.7% | 39% |
| FrontierMath (Tiers 1-3) | — | 57.2% |
| FrontierMath Tier 4 | — | 25.6% |
| MathArena Final-Answer Competitions | — | 72.9% |
| ProofBench | — | 16% |
| Omni-MATH | 40.3% | — |
| LiveBench Math | 73.5% | — |
| MATH Level 5 | 75.5% | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |
Knowledge Kimi K2.6 leads
DeepSeek-V3: 37.5 (#155), Kimi K2.6: 54.0 (#54)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| GPQA Diamond | 67.6% | 90.8% |
| Vectara Hallucination Rate | 6.1% | 10.8% |
| LMArena Expert | 1351 | 1491 |
| SimpleQA Verified | — | 34.9% |
| MMLU-Pro | 72.3% | — |
| Confabulations | 26.1% | — |
| GPQA (HELM) | 53.8% | — |
| ARC (AI2) Challenge | 95.3% | — |
| MMLU | 87.2% | — |
| TriviaQA | 82.9% | — |
Multimodal Not comparable
DeepSeek-V3: —, Kimi K2.6: 31.6 (#103)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| LMArena Vision | — | 1283 |
| Blueprint-Bench 2 | — | 3.9% |
| Furniture Assembly | — | 21.7% |
| LMArena Document | — | 1451 |
Multilingual Kimi K2.6 leads
DeepSeek-V3: 48.5 (#143), Kimi K2.6: 54.9 (#37)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| LMArena Non-English | 1358 | 1446 |
| LMArena Chinese | 1391 | 1521 |
| LMArena French | 1385 | 1471 |
| LMArena German | 1374 | 1450 |
| LMArena Japanese | 1333 | 1443 |
| LMArena Korean | 1319 | 1427 |
| LMArena Russian | 1373 | 1446 |
| LMArena Spanish | 1358 | 1464 |
Instruction Following Kimi K2.6 leads
DeepSeek-V3: 72.8 (#130), Kimi K2.6: 76.3 (#43)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| LMArena Instruction Following | 1345 | 1451 |
| LiveBench Instruction Following | 81.5% | — |
| IFEval | 83.2% | — |
Long Context Kimi K2.6 leads
DeepSeek-V3: 34.0 (#253), Kimi K2.6: 44.9 (#52)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| LMArena Longer Query | 1352 | 1468 |
| Fiction.LiveBench | 50% | — |
Writing & Preference Kimi K2.6 leads
DeepSeek-V3: 57.4 (#130), Kimi K2.6: 68.5 (#26)
| Benchmark | DeepSeek-V3 | Kimi K2.6 |
|---|---|---|
| LMArena Text | 1375 | 1455 |
| LMArena Creative Writing | 1364 | 1434 |
| EQ-Bench Creative Writing | 1472 | 1725 |
| LMArena Multi-Turn | 1389 | 1453 |
| Short-Story Creative Writing | 77% | — |
| WildBench | 83% | — |
| EQ-Bench 4 | — | 1202 |
| LiveBench Language | 49.1% | — |
Frequently asked questions
Is DeepSeek-V3 better than Kimi K2.6?
Kimi K2.6 is the stronger model overall, scoring 47.7 to 39.5 on the Noometry Index. DeepSeek-V3 costs 4.2× less per token, which makes it the better buy when Kimi K2.6's lead doesn't matter for your workload.
Which is cheaper, DeepSeek-V3 or Kimi K2.6?
DeepSeek-V3 is cheaper. It lists at $0.24 per million input tokens and $0.90 per million output tokens; Kimi K2.6 lists at $0.95 and $4.
Is DeepSeek-V3 or Kimi K2.6 better for coding?
Kimi K2.6 scores higher on coding benchmarks: 50.7 versus 42.3 in the Noometry coding category.
Which has the bigger context window?
Kimi K2.6 does, with 262K tokens against 164K.
How many benchmarks do DeepSeek-V3 and Kimi K2.6 share?
28 benchmarks have published results for both models. DeepSeek-V3 has 60 scored results on Noometry and Kimi K2.6 has 51.