Kimi K3 vs MiMo-V2.6-Pro
MiMo-V2.6-Pro leads Kimi K3 on coding, 65.4 to 62.3 on the Vibe Coding Index, and MiMo-V2.6-Pro costs 17.2x less per output token ($0.87 vs $15.00 per million). Updated October 22, 2026; 66 benchmarks have a result for both.
Kimi K3 or MiMo-V2.6-Pro: which to pick
Pick MiMo-V2.6-Pro for coding: it scores 65.4 on the Vibe Coding Index against 62.3 for Kimi K3, though on 4 benchmarks against 6.
Pick Kimi K3 for work measured by LMArena WebDev or ProgramBench (Vals AI), where it leads.
- Shared results
- 66
- Kimi K3 only
- 51
- MiMo-V2.6-Pro only
- 7
- Like-for-like categories
- 8 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
MiMo-V2.6-Pro
MiMo-V2.6-Pro scores 65.4 against 62.3.
6 and 4 benchmarks behind the scores
Intelligence
AA Intelligence Index
MiMo-V2.6-Pro
MiMo-V2.6-Pro leads, 46.3 against 43.6.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Kimi K3 has a AA Agentic Index result, 50.0.
Directional only
Reasoning
GPQA Diamond
No call
Only Kimi K3 has a GPQA Diamond result, 92.9%.
Directional only
Knowledge
MMLU Pro
No call
Only Kimi K3 has a MMLU Pro result, 88.0%.
Directional only
Web design
Design Arena: websites
Kimi K3
Kimi K3 leads, 1334 against 1308.
Same board, both measured
General
Vals Index
MiMo-V2.6-Pro
MiMo-V2.6-Pro leads, 57.8% against 53.0%.
Same board, both measured
Long documents
Listed context window
MiMo-V2.6-Pro
MiMo-V2.6-Pro takes 1.05M tokens against 1.05M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiMo-V2.6-Pro
Kimi K3 $0.011, MiMo-V2.6-Pro $0.0009 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Kimi K3 has the number, $0.81.
Directional only
At a glance
- Coding index
- Kimi K3 62.3 from 6 benchmarks, MiMo-V2.6-Pro 65.4 from 4 benchmarks.
- Widest category
- Agentic work, 9.0 points apart on average over 11 shared benchmarks.
- Widest single gap
- LiveBench browser: Kimi K3 16.0% against MiMo-V2.6-Pro 88.0%, 72.0 points apart on a 0 to 100 scale.
- Output price
- Kimi K3 $15.00 against MiMo-V2.6-Pro $0.87 per million output tokens, 17.2x apart.
- Context window
- Kimi K3 takes 1.05M tokens, MiMo-V2.6-Pro 1.05M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Kimi K3 | Bars | MiMo-V2.6-Pro | Ties |
|---|---|---|---|---|
| Coding | 9 | 8 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 4 | 7 | ||
| Reasoning | 1 | 4 | ||
| Math | 1 | 2 | ||
| Knowledge | 4 | 1 | ||
| Web design | 6 | 1 | ||
| General | 6 | 11 | ||
| All shared boards | 31 | 35 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index98
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| LiveBench coding | 59.3% | 81.5% | MiMo-V2.6-Pro |
| LMArena WebDev | 1655 | 1625 | Kimi K3 |
| AA Coding Index | 76.2 | Not measured | Only Kimi K3 measured |
| LiveCodeBench (Vals AI) | 87.2% | Not measured | Only Kimi K3 measured |
| SWE-bench Verified (Vals AI) | 93.4% | Not measured | Only Kimi K3 measured |
| Terminal-Bench 4 (Vals AI) | 17.2% | 31.3% | MiMo-V2.6-Pro |
| Vibe Code Bench (Vals AI) | 85.0% | 85.2% | MiMo-V2.6-Pro |
| Code migration (Vals AI) | 16.1% | 43.0% | MiMo-V2.6-Pro |
| ProgramBench (Vals AI) | 2.0% | 0.5% | Kimi K3 |
| IOI (Vals AI) | 48.9% | 39.3% | Kimi K3 |
| Terminal-Bench 2.1 (Vals AI) | 80.9% | 67.8% | Kimi K3 |
| SWE-bench Multimodal (Vals AI) | 44.2% | 41.3% | Kimi K3 |
| Vibe Code Bench 1-100 (Vals AI) | 18.2% | Not measured | Only Kimi K3 measured |
| CyberBench (Vals AI) | 75.2% | 72.9% | Kimi K3 |
| SciCode | 59.5% | 60.9% | MiMo-V2.6-Pro |
| FrontierCode | 44.2% | Not measured | Only Kimi K3 measured |
| FrontierSWE | 25.9% | Not measured | Only Kimi K3 measured |
| WeirdML | 82.6% | Not measured | Only Kimi K3 measured |
| ALE-Bench | 1524.5 | 1158.1 | Kimi K3 |
| LMArena Text: coding | 1508 | 1533 | MiMo-V2.6-Pro |
| LMArena Text: software and IT | 1499 | 1528 | MiMo-V2.6-Pro |
| LMArena WebDev: React | 1670 | 1639 | Kimi K3 |
| LMArena WebDev: HTML | 1644 | 1616 | Kimi K3 |
| LMArena WebDev: from an image | 1579 | 1598 | MiMo-V2.6-Pro |
| Neither model has a result on the other 15 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| AA Intelligence Index | 43.6 | 46.3 | MiMo-V2.6-Pro |
| Epoch Capabilities Index | 157.9 | Not measured | Only Kimi K3 measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index47
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| AA Agentic Index | 50.0 | Not measured | Only Kimi K3 measured |
| Design Arena: agents building web apps | 1295 | 1290 | Kimi K3 |
| Design Arena: agents building full-stack apps | 1315 | Not measured | Only Kimi K3 measured |
| Design Arena: agents building mobile apps | 1269 | Not measured | Only Kimi K3 measured |
| Design Arena: agents building Android apps | 1253 | Not measured | Only Kimi K3 measured |
| Design Arena: agents building Godot games | 1223 | Not measured | Only Kimi K3 measured |
| Design Arena: agents building games | 1252 | Not measured | Only Kimi K3 measured |
| Design Arena: HTML slides | 1206 | Not measured | Only Kimi K3 measured |
| Design Arena: PowerPoint slides | 1247 | Not measured | Only Kimi K3 measured |
| Design Arena: spreadsheets | 1070 | Not measured | Only Kimi K3 measured |
| LiveBench research | 79.0% | 76.7% | Kimi K3 |
| LiveBench browser | 16.0% | 88.0% | MiMo-V2.6-Pro |
| LiveBench long agentic | 42.8% | 47.5% | MiMo-V2.6-Pro |
| SREBench (Vals AI) | Not measured | 3.0% | Only MiMo-V2.6-Pro measured |
| Finance Agent (Vals AI) | 53.1% | 57.3% | MiMo-V2.6-Pro |
| Tax Agent Bench (Vals AI) | 33.4% | 32.4% | Kimi K3 |
| Legal Research Bench (Vals AI) | 46.1% | 47.1% | MiMo-V2.6-Pro |
| Harvey's Legal Agent Benchmark (Vals AI) | 12.9% | 13.8% | MiMo-V2.6-Pro |
| Excel Modeling Benchmark (Vals AI) | 66.7% | 62.9% | Kimi K3 |
| BioMysteryBench (Vals AI) | 72.6% | Not measured | Only Kimi K3 measured |
| Terminal-Bench-Science (Vals AI) | 1.4% | 2.9% | MiMo-V2.6-Pro |
| Time Horizon Index (Vals AI) | 10.5% | Not measured | Only Kimi K3 measured |
| APEX-Agents | 47.8% | 54.4% | MiMo-V2.6-Pro |
| PostTrainBench | 32.0% | Not measured | Only Kimi K3 measured |
| Vending-Bench 2 | $5,165 | Not measured | Only Kimi K3 measured |
| Neither model has a result on the other 16 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index14
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| GPQA Diamond | 92.9% | Not measured | Only Kimi K3 measured |
| LiveBench reasoning | 90.7% | 79.6% | Kimi K3 |
| MysteryMechanism (Vals AI) | Not measured | 15.3% | Only MiMo-V2.6-Pro measured |
| MMMU Pro (Vals AI) | 88.2% | Not measured | Only Kimi K3 measured |
| GPQA Diamond (Artificial Analysis run) | 93.5% | Not measured | Only Kimi K3 measured |
| Humanity's Last Exam (Artificial Analysis run) | 46.9% | 49.4% | MiMo-V2.6-Pro |
| GPQA Diamond (Epoch AI run) | 93.1% | Not measured | Only Kimi K3 measured |
| ARC-AGI | 94.5% | Not measured | Only Kimi K3 measured |
| ARC-AGI-2 | 60.4% | Not measured | Only Kimi K3 measured |
| SimpleBench | 60.7% | Not measured | Only Kimi K3 measured |
| Chess puzzles | 37.0% | Not measured | Only Kimi K3 measured |
| Mystery game puzzles | 26.0% | Not measured | Only Kimi K3 measured |
| LMArena Text: hard prompts | 1495 | 1511 | MiMo-V2.6-Pro |
| LMArena Text: expert | 1520 | 1541 | MiMo-V2.6-Pro |
| LMArena Text: hard prompts in English | 1496 | 1520 | MiMo-V2.6-Pro |
| LMArena Vision: diagrams | Not measured | 1281 | Only MiMo-V2.6-Pro measured |
| LMArena Vision: homework | Not measured | 1264 | Only MiMo-V2.6-Pro measured |
| Neither model has a result on the other 5 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index12
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| OTIS Mock AIME | 97.2% | Not measured | Only Kimi K3 measured |
| FrontierMath, tiers 1 to 3 | 72.2% | Not measured | Only Kimi K3 measured |
| FrontierMath, tier 4 | 39.0% | Not measured | Only Kimi K3 measured |
| ProofBench | 87.0% | 70.0% | Kimi K3 |
| LMArena Text: math | 1494 | 1500 | MiMo-V2.6-Pro |
| LMArena Text: mathematical work | 1505 | 1511 | MiMo-V2.6-Pro |
| Neither model has a result on the other 7 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index41
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| MMLU Pro | 88.0% | Not measured | Only Kimi K3 measured |
| LegalBench (Vals AI) | 86.2% | Not measured | Only Kimi K3 measured |
| CorpFin (Vals AI) | 71.6% | Not measured | Only Kimi K3 measured |
| TaxEval (Vals AI) | 75.7% | Not measured | Only Kimi K3 measured |
| MortgageTax (Vals AI) | 66.3% | Not measured | Only Kimi K3 measured |
| MedCode (Vals AI) | 49.4% | 45.0% | Kimi K3 |
| SimpleQA Verified | 50.6% | Not measured | Only Kimi K3 measured |
| LMArena Text: science | 1508 | 1506 | Kimi K3 |
| LMArena Text: medicine and healthcare | 1489 | 1497 | MiMo-V2.6-Pro |
| LMArena Text: legal and government | 1503 | 1485 | Kimi K3 |
| LMArena Text: business and finance | 1470 | 1468 | Kimi K3 |
| Neither model has a result on the other 7 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index61
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| Design Arena: websites | 1334 | 1308 | Kimi K3 |
| Design Arena: UI components | 1341 | 1340 | Kimi K3 |
| Design Arena: game dev | 1358 | 1314 | Kimi K3 |
| Design Arena: data viz | 1351 | 1336 | Kimi K3 |
| Design Arena: 3D | 1387 | 1330 | Kimi K3 |
| Design Arena: all code categories | 1360 | 1317 | Kimi K3 |
| Design Arena: SVG | 1302 | Not measured | Only Kimi K3 measured |
| LiveBench design | 77.2% | 78.5% | MiMo-V2.6-Pro |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index611
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| Vals Index | 53.0% | 57.8% | MiMo-V2.6-Pro |
| LiveBench data analysis | 78.7% | 72.3% | Kimi K3 |
| Public Benefits Bench (Vals AI) | 68.2% | 68.9% | MiMo-V2.6-Pro |
| SAGE (Vals AI) | 52.8% | 45.0% | Kimi K3 |
| MedScribe (Vals AI) | 88.0% | 88.3% | MiMo-V2.6-Pro |
| Vals Multimodal Index | 73.4% | Not measured | Only Kimi K3 measured |
| Long context reasoning (AA-LCR) | 88.7% | 86.3% | Kimi K3 |
| DTBench | 91.2% | Not measured | Only Kimi K3 measured |
| LMCA | 52.7% | Not measured | Only Kimi K3 measured |
| Surface Evolver Bench | 95.0% | Not measured | Only Kimi K3 measured |
| Furniture assembly | 34.2% | Not measured | Only Kimi K3 measured |
| LMArena Text | 1476 | 1491 | MiMo-V2.6-Pro |
| LMArena Text: instruction following | 1485 | 1491 | MiMo-V2.6-Pro |
| LMArena Text: creative writing | 1457 | 1466 | MiMo-V2.6-Pro |
| LMArena Vision | Not measured | 1263 | Only MiMo-V2.6-Pro measured |
| LMArena Text: English | 1481 | 1504 | MiMo-V2.6-Pro |
| LMArena Text: non-English | 1466 | 1474 | MiMo-V2.6-Pro |
| LMArena Text: Chinese | 1529 | 1529 | MiMo-V2.6-Pro |
| LMArena Text: German | 1490 | Not measured | Only Kimi K3 measured |
| LMArena Text: Japanese | 1494 | Not measured | Only Kimi K3 measured |
| LMArena Text: Korean | 1460 | Not measured | Only Kimi K3 measured |
| LMArena Text: French | 1492 | Not measured | Only Kimi K3 measured |
| LMArena Text: Spanish | 1472 | Not measured | Only Kimi K3 measured |
| LMArena Text: Russian | 1485 | 1479 | Kimi K3 |
| LMArena Text: Polish | 1458 | Not measured | Only Kimi K3 measured |
| LMArena Text: multi-turn | 1489 | 1466 | Kimi K3 |
| LMArena Text: longer queries | 1494 | 1501 | MiMo-V2.6-Pro |
| LMArena Text: writing and language | 1471 | 1470 | Kimi K3 |
| LMArena Text: entertainment and media | 1453 | 1465 | MiMo-V2.6-Pro |
| LMArena Vision: English | Not measured | 1268 | Only MiMo-V2.6-Pro measured |
| LMArena Vision: reading text | Not measured | 1270 | Only MiMo-V2.6-Pro measured |
| Neither model has a result on the other 15 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Kimi K3 | MiMo-V2.6-Pro | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
MiMo-V2.6-Pro costs less
Repository review
50K input + 3K output tokens
MiMo-V2.6-Pro costs less
Agent loop
200K input + 10K output tokens
MiMo-V2.6-Pro costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | MoonshotAI Kimi K3 | Xiaomi MiMo-V2.6-Pro |
|---|---|---|
| Maker | Moonshot AI | Xiaomi |
| Weights | Open weights | Open weights |
| Released | July 16, 2026 | September 21, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $3.00 | $0.435 |
| Output $/Mtok | $15.00 | $0.87 |
| Coding index | 62.3 | 65.4 |
| Independent measurements behind it | 6 | 4 |
| Cost per solved task | $0.81 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Kimi K3 better than MiMo-V2.6-Pro for coding?
Pick MiMo-V2.6-Pro for coding: it scores 65.4 on the Vibe Coding Index against 62.3 for Kimi K3, though on 4 benchmarks against 6. Pick Kimi K3 for work measured by LMArena WebDev or ProgramBench (Vals AI), where it leads.
Which is cheaper, Kimi K3 or MiMo-V2.6-Pro?
Kimi K3 costs $3.00 per million input tokens and $15.00 per million output tokens; MiMo-V2.6-Pro costs $0.435 and $0.87. Cost per solved task is known for Kimi K3 only.
Which has the bigger context window, Kimi K3 or MiMo-V2.6-Pro?
MiMo-V2.6-Pro, with 1.05M tokens against 1.05M.
How many benchmarks is the Kimi K3 vs MiMo-V2.6-Pro comparison based on?
66 benchmarks have a result for both models as of October 22, 2026. Kimi K3's coding index rests on 6 independent benchmarks and MiMo-V2.6-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.