Kimi K3.1 Pro vs MiMo-V2.6-Flash
Kimi K3.1 Pro leads MiMo-V2.6-Flash on coding, 82.2 to 54.8 on the Vibe Coding Index, and MiMo-V2.6-Flash costs 35.7x less per output token ($0.28 vs $10.00 per million). Updated October 29, 2026; 20 benchmarks have a result for both.
Kimi K3.1 Pro or MiMo-V2.6-Flash: which to pick
Pick Kimi K3.1 Pro for coding: it scores 82.2 on the Vibe Coding Index against 54.8 for MiMo-V2.6-Flash.
Pick MiMo-V2.6-Flash for output tokens 35.7x cheaper ($0.28 vs $10.00 per million) and a larger context window (1.05M against 1.05M tokens).
- Shared results
- 20
- Kimi K3.1 Pro only
- 15
- MiMo-V2.6-Flash only
- 46
- Like-for-like categories
- 6 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
Kimi K3.1 Pro
Kimi K3.1 Pro scores 82.2 against 54.8.
4 and 3 benchmarks behind the scores
Intelligence
AA Intelligence Index
Kimi K3.1 Pro
Kimi K3.1 Pro leads, 46.0 against 26.7.
Same board, both measured
Web design
Design Arena: websites
No call
Only Kimi K3.1 Pro has a Design Arena: websites result, 1325.
Directional only
General
Vals Index
Kimi K3.1 Pro
Kimi K3.1 Pro leads, 62.5% against 54.8%.
Same board, both measured
Long documents
Listed context window
MiMo-V2.6-Flash
MiMo-V2.6-Flash takes 1.05M tokens against 1.05M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiMo-V2.6-Flash
Kimi K3.1 Pro $0.0070, MiMo-V2.6-Flash $0.0003 per turn.
List prices
At a glance
- Coding index
- Kimi K3.1 Pro 82.2 from 4 benchmarks, MiMo-V2.6-Flash 54.8 from 3 benchmarks.
- Widest category
- Math, 28.0 points apart on average over 1 shared benchmark.
- Widest single gap
- Terminal-Bench 4 (Vals AI): Kimi K3.1 Pro 63.6% against MiMo-V2.6-Flash 24.2%, 52.5 points apart on a 0 to 100 scale.
- Output price
- Kimi K3.1 Pro $10.00 against MiMo-V2.6-Flash $0.28 per million output tokens, 35.7x apart.
- Context window
- Kimi K3.1 Pro takes 1.05M tokens, MiMo-V2.6-Flash 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 K3.1 Pro | Bars | MiMo-V2.6-Flash | Ties |
|---|---|---|---|---|
| Coding | 8 | 0 | ||
| Intelligence | 1 | 0 | ||
| Agentic work | 3 | 3 | ||
| Reasoning | 2 | 0 | ||
| Math | 1 | 0 | ||
| General | 2 | 0 | ||
| All shared boards | 17 | 3 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index80
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| LiveBench coding | 81.8% | Not measured | Only Kimi K3.1 Pro measured |
| LMArena WebDev | 1695 | 1637 | Kimi K3.1 Pro |
| Terminal-Bench 4 (Vals AI) | 63.6% | 24.2% | Kimi K3.1 Pro |
| Vibe Code Bench (Vals AI) | 84.9% | 79.0% | Kimi K3.1 Pro |
| Code migration (Vals AI) | Not measured | 40.9% | Only MiMo-V2.6-Flash measured |
| ProgramBench (Vals AI) | Not measured | 0.5% | Only MiMo-V2.6-Flash measured |
| IOI (Vals AI) | 81.9% | 47.7% | Kimi K3.1 Pro |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 76.4% | Only MiMo-V2.6-Flash measured |
| CyberBench (Vals AI) | Not measured | 75.4% | Only MiMo-V2.6-Flash measured |
| SciCode | 60.8% | 51.3% | Kimi K3.1 Pro |
| ALE-Bench | 1932.8 | 1244.2 | Kimi K3.1 Pro |
| LMArena Text: coding | Not measured | 1498 | Only MiMo-V2.6-Flash measured |
| LMArena Text: software and IT | Not measured | 1495 | Only MiMo-V2.6-Flash measured |
| LMArena WebDev: React | 1701 | 1651 | Kimi K3.1 Pro |
| LMArena WebDev: HTML | 1706 | 1638 | Kimi K3.1 Pro |
| LMArena WebDev: from an image | Not measured | 1596 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 27 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| AA Intelligence Index | 46.0 | 26.7 | Kimi K3.1 Pro |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index33
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| LiveBench research | 77.9% | Not measured | Only Kimi K3.1 Pro measured |
| LiveBench browser | 75.9% | Not measured | Only Kimi K3.1 Pro measured |
| LiveBench long agentic | 39.1% | Not measured | Only Kimi K3.1 Pro measured |
| SREBench (Vals AI) | Not measured | 4.2% | Only MiMo-V2.6-Flash measured |
| Finance Agent (Vals AI) | Not measured | 56.3% | Only MiMo-V2.6-Flash measured |
| Tax Agent Bench (Vals AI) | 24.9% | 28.5% | MiMo-V2.6-Flash |
| Legal Research Bench (Vals AI) | 37.5% | 38.0% | MiMo-V2.6-Flash |
| Harvey's Legal Agent Benchmark (Vals AI) | 11.7% | 13.3% | MiMo-V2.6-Flash |
| Excel Modeling Benchmark (Vals AI) | Not measured | 65.5% | Only MiMo-V2.6-Flash measured |
| BioMysteryBench (Vals AI) | 75.6% | 69.3% | Kimi K3.1 Pro |
| Terminal-Bench-Science (Vals AI) | 31.4% | 4.3% | Kimi K3.1 Pro |
| Vals Science Index | 44.4% | 31.7% | Kimi K3.1 Pro |
| Neither model has a result on the other 30 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| LiveBench reasoning | 91.1% | Not measured | Only Kimi K3.1 Pro measured |
| MysteryMechanism (Vals AI) | 26.1% | 21.6% | Kimi K3.1 Pro |
| Humanity's Last Exam (Artificial Analysis run) | 52.5% | 35.1% | Kimi K3.1 Pro |
| LMArena Text: hard prompts | Not measured | 1473 | Only MiMo-V2.6-Flash measured |
| LMArena Text: expert | Not measured | 1497 | Only MiMo-V2.6-Flash measured |
| LMArena Text: hard prompts in English | Not measured | 1490 | Only MiMo-V2.6-Flash measured |
| LMArena Vision: diagrams | Not measured | 1276 | Only MiMo-V2.6-Flash measured |
| LMArena Vision: homework | Not measured | 1283 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 15 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| ProofBench | 91.0% | 63.0% | Kimi K3.1 Pro |
| LMArena Text: math | Not measured | 1468 | Only MiMo-V2.6-Flash measured |
| LMArena Text: mathematical work | Not measured | 1479 | Only MiMo-V2.6-Flash measured |
| MathArena | 59.6% | Not measured | Only Kimi K3.1 Pro measured |
| Neither model has a result on the other 10 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| MedCode (Vals AI) | Not measured | 41.1% | Only MiMo-V2.6-Flash measured |
| LMArena Text: science | Not measured | 1460 | Only MiMo-V2.6-Flash measured |
| LMArena Text: medicine and healthcare | Not measured | 1445 | Only MiMo-V2.6-Flash measured |
| LMArena Text: legal and government | Not measured | 1447 | Only MiMo-V2.6-Flash measured |
| LMArena Text: business and finance | Not measured | 1450 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 15 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| Design Arena: websites | 1325 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: UI components | 1400 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: game dev | 1410 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: data viz | 1300 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: 3D | 1451 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: all code categories | 1354 | Not measured | Only Kimi K3.1 Pro measured |
| Design Arena: SVG | 1328 | Not measured | Only Kimi K3.1 Pro measured |
| LiveBench design | 77.8% | Not measured | Only Kimi K3.1 Pro measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | Leader |
|---|---|---|---|
| Vals Index | 62.5% | 54.8% | Kimi K3.1 Pro |
| LiveBench data analysis | 79.1% | Not measured | Only Kimi K3.1 Pro measured |
| Public Benefits Bench (Vals AI) | Not measured | 67.6% | Only MiMo-V2.6-Flash measured |
| SAGE (Vals AI) | Not measured | 83.3% | Only MiMo-V2.6-Flash measured |
| MedScribe (Vals AI) | Not measured | 85.3% | Only MiMo-V2.6-Flash measured |
| Long context reasoning (AA-LCR) | 86.3% | 74.3% | Kimi K3.1 Pro |
| LMArena Text | Not measured | 1451 | Only MiMo-V2.6-Flash measured |
| LMArena Text: instruction following | Not measured | 1449 | Only MiMo-V2.6-Flash measured |
| LMArena Text: creative writing | Not measured | 1405 | Only MiMo-V2.6-Flash measured |
| LMArena Vision | Not measured | 1256 | Only MiMo-V2.6-Flash measured |
| LMArena Text: English | Not measured | 1473 | Only MiMo-V2.6-Flash measured |
| LMArena Text: non-English | Not measured | 1431 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Chinese | Not measured | 1509 | Only MiMo-V2.6-Flash measured |
| LMArena Text: German | Not measured | 1463 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Japanese | Not measured | 1357 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Korean | Not measured | 1432 | Only MiMo-V2.6-Flash measured |
| LMArena Text: French | Not measured | 1480 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Spanish | Not measured | 1458 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Russian | Not measured | 1411 | Only MiMo-V2.6-Flash measured |
| LMArena Text: Polish | Not measured | 1444 | Only MiMo-V2.6-Flash measured |
| LMArena Text: multi-turn | Not measured | 1444 | Only MiMo-V2.6-Flash measured |
| LMArena Text: longer queries | Not measured | 1459 | Only MiMo-V2.6-Flash measured |
| LMArena Text: writing and language | Not measured | 1423 | Only MiMo-V2.6-Flash measured |
| LMArena Text: entertainment and media | Not measured | 1413 | Only MiMo-V2.6-Flash measured |
| LMArena Vision: English | Not measured | 1269 | Only MiMo-V2.6-Flash measured |
| LMArena Vision: reading text | Not measured | 1270 | Only MiMo-V2.6-Flash measured |
| LMArena Vision: creative writing | Not measured | 1231 | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 21 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Kimi K3.1 Pro | MiMo-V2.6-Flash | 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-Flash costs less
Repository review
50K input + 3K output tokens
MiMo-V2.6-Flash costs less
Agent loop
200K input + 10K output tokens
MiMo-V2.6-Flash 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 K3.1 Pro | Xiaomi MiMo-V2.6-Flash |
|---|---|---|
| Maker | Moonshot AI | Xiaomi |
| Weights | No public weights listed | Open weights |
| Released | October 23, 2026 | September 21, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $2.00 | $0.14 |
| Output $/Mtok | $10.00 | $0.28 |
| Coding index | 82.2 | 54.8 |
| Independent measurements behind it | 4 | 3 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Kimi K3.1 Pro better than MiMo-V2.6-Flash for coding?
Pick Kimi K3.1 Pro for coding: it scores 82.2 on the Vibe Coding Index against 54.8 for MiMo-V2.6-Flash. Pick MiMo-V2.6-Flash for output tokens 35.7x cheaper ($0.28 vs $10.00 per million) and a larger context window (1.05M against 1.05M tokens).
Which is cheaper, Kimi K3.1 Pro or MiMo-V2.6-Flash?
Kimi K3.1 Pro costs $2.00 per million input tokens and $10.00 per million output tokens; MiMo-V2.6-Flash costs $0.14 and $0.28. Cost per solved task is known for neither of them.
Which has the bigger context window, Kimi K3.1 Pro or MiMo-V2.6-Flash?
MiMo-V2.6-Flash, with 1.05M tokens against 1.05M.
How many benchmarks is the Kimi K3.1 Pro vs MiMo-V2.6-Flash comparison based on?
20 benchmarks have a result for both models as of October 29, 2026. Kimi K3.1 Pro's coding index rests on 4 independent benchmarks and MiMo-V2.6-Flash's on 3. Where only one model has a result, the page says so instead of naming a winner.