MiMo-V2.6-Flash vs MiMo-V2.6-Pro-UltraSpeed
MiMo-V2.6-Flash costs 31.1x less per output token than MiMo-V2.6-Pro-UltraSpeed ($0.28 vs $8.70 per million). Updated October 23, 2026; no benchmark has tested both models yet.
- Coding
- 54.7
- Overall
- 60.7
- Output $/M
- $0.28
- Coding
- No data
- Overall
- No data
- Output $/M
- $8.70
MiMo-V2.6-Flash or MiMo-V2.6-Pro-UltraSpeed: which to pick
Only MiMo-V2.6-Flash has a coding score, 54.7 on the Vibe Coding Index; MiMo-V2.6-Pro-UltraSpeed has none, so the two cannot be ranked on coding.
Compare them on price, context and the boards below.
No benchmark has tested both yet. MiMo-V2.6-Flash has results on LMArena WebDev, Terminal-Bench 4 (Vals AI) and Vibe Code Bench (Vals AI); MiMo-V2.6-Pro-UltraSpeed has none yet. Compare them on price and context instead.
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
No call
Only MiMo-V2.6-Flash has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
No call
Only MiMo-V2.6-Flash has a AA Intelligence Index result, 37.9.
Directional only
General
Vals Index
No call
Only MiMo-V2.6-Flash has a Vals Index result, 54.8%.
Directional only
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
MiMo-V2.6-Flash $0.0003, MiMo-V2.6-Pro-UltraSpeed $0.0087 per turn.
List prices
At a glance
- Coding index
- MiMo-V2.6-Flash 54.7 from 3 benchmarks, MiMo-V2.6-Pro-UltraSpeed not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- MiMo-V2.6-Flash $0.28 against MiMo-V2.6-Pro-UltraSpeed $8.70 per million output tokens, 31.1x apart.
- Context window
- MiMo-V2.6-Flash takes 1.05M tokens, MiMo-V2.6-Pro-UltraSpeed 1.05M.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
CodingDirectional onlySix of these boards feed the Vibe Coding Index15 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| LMArena WebDev | 1634 | Not measured | Only MiMo-V2.6-Flash measured |
| Terminal-Bench 4 (Vals AI) | 24.2% | Not measured | Only MiMo-V2.6-Flash measured |
| Vibe Code Bench (Vals AI) | 79.0% | Not measured | Only MiMo-V2.6-Flash measured |
| Code migration (Vals AI) | 40.9% | Not measured | Only MiMo-V2.6-Flash measured |
| ProgramBench (Vals AI) | 0.5% | Not measured | Only MiMo-V2.6-Flash measured |
| IOI (Vals AI) | 47.7% | Not measured | Only MiMo-V2.6-Flash measured |
| Terminal-Bench 2.1 (Vals AI) | 76.4% | Not measured | Only MiMo-V2.6-Flash measured |
| CyberBench (Vals AI) | 75.4% | Not measured | Only MiMo-V2.6-Flash measured |
| SciCode | 51.3% | Not measured | Only MiMo-V2.6-Flash measured |
| ALE-Bench | 1244.2 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: coding | 1499 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: software and IT | 1497 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena WebDev: React | 1649 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena WebDev: HTML | 1639 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena WebDev: from an image | 1596 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 28 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| AA Intelligence Index | 37.9 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index9 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| SREBench (Vals AI) | 4.2% | Not measured | Only MiMo-V2.6-Flash measured |
| Finance Agent (Vals AI) | 56.3% | Not measured | Only MiMo-V2.6-Flash measured |
| Tax Agent Bench (Vals AI) | 28.5% | Not measured | Only MiMo-V2.6-Flash measured |
| Legal Research Bench (Vals AI) | 38.0% | Not measured | Only MiMo-V2.6-Flash measured |
| Harvey's Legal Agent Benchmark (Vals AI) | 13.3% | Not measured | Only MiMo-V2.6-Flash measured |
| Excel Modeling Benchmark (Vals AI) | 65.5% | Not measured | Only MiMo-V2.6-Flash measured |
| BioMysteryBench (Vals AI) | 69.3% | Not measured | Only MiMo-V2.6-Flash measured |
| Terminal-Bench-Science (Vals AI) | 4.3% | Not measured | Only MiMo-V2.6-Flash measured |
| Vals Science Index | 31.7% | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 33 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index7 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| MysteryMechanism (Vals AI) | 21.6% | Not measured | Only MiMo-V2.6-Flash measured |
| Humanity's Last Exam (Artificial Analysis run) | 35.1% | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: hard prompts | 1474 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: expert | 1494 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: hard prompts in English | 1492 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision: diagrams | 1276 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision: homework | 1283 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 16 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index3 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| ProofBench | 63.0% | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: math | 1470 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: mathematical work | 1478 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 11 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| MedCode (Vals AI) | 41.1% | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: science | 1461 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: medicine and healthcare | 1443 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: legal and government | 1442 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: business and finance | 1451 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 15 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index26 boards measured
| Benchmark | MiMo-V2.6-Flash | MiMo-V2.6-Pro-UltraSpeed | Leader |
|---|---|---|---|
| Vals Index | 54.8% | Not measured | Only MiMo-V2.6-Flash measured |
| Public Benefits Bench (Vals AI) | 67.6% | Not measured | Only MiMo-V2.6-Flash measured |
| SAGE (Vals AI) | 43.5% | Not measured | Only MiMo-V2.6-Flash measured |
| MedScribe (Vals AI) | 85.3% | Not measured | Only MiMo-V2.6-Flash measured |
| Long context reasoning (AA-LCR) | 74.3% | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text | 1452 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: instruction following | 1449 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: creative writing | 1404 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision | 1256 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: English | 1474 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: non-English | 1431 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Chinese | 1507 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: German | 1455 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Japanese | 1355 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Korean | 1427 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: French | 1478 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Spanish | 1452 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Russian | 1412 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: Polish | 1446 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: multi-turn | 1444 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: longer queries | 1459 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: writing and language | 1425 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Text: entertainment and media | 1412 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision: English | 1269 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision: reading text | 1270 | Not measured | Only MiMo-V2.6-Flash measured |
| LMArena Vision: creative writing | 1231 | Not measured | Only MiMo-V2.6-Flash measured |
| Neither model has a result on the other 22 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 | Xiaomi MiMo-V2.6-Flash | Xiaomi MiMo-V2.6-Pro-UltraSpeed |
|---|---|---|
| Maker | Xiaomi | Xiaomi |
| Weights | Open weights | No public weights listed |
| Released | September 21, 2026 | September 21, 2026 |
| Context window | 1.05M | 1.05M |
| Input $/Mtok | $0.14 | $4.35 |
| Output $/Mtok | $0.28 | $8.70 |
| Coding index | 54.7 | Not benchmarked |
| Independent measurements behind it | 3 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is MiMo-V2.6-Flash better than MiMo-V2.6-Pro-UltraSpeed for coding?
Only MiMo-V2.6-Flash has a coding score, 54.7 on the Vibe Coding Index; MiMo-V2.6-Pro-UltraSpeed has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.
Which is cheaper, MiMo-V2.6-Flash or MiMo-V2.6-Pro-UltraSpeed?
MiMo-V2.6-Flash costs $0.14 per million input tokens and $0.28 per million output tokens; MiMo-V2.6-Pro-UltraSpeed costs $4.35 and $8.70. Cost per solved task is known for neither of them.
Which has the bigger context window, MiMo-V2.6-Flash or MiMo-V2.6-Pro-UltraSpeed?
MiMo-V2.6-Flash, with 1.05M tokens against 1.05M.
Has any benchmark tested both MiMo-V2.6-Flash and MiMo-V2.6-Pro-UltraSpeed?
No benchmark has tested both yet. MiMo-V2.6-Flash has results on LMArena WebDev, Terminal-Bench 4 (Vals AI) and Vibe Code Bench (Vals AI); MiMo-V2.6-Pro-UltraSpeed has none yet. Compare them on price and context instead. Data as of October 23, 2026.