Inkling 2 Small vs MiMo-V2.5-Pro
Inkling 2 Small leads MiMo-V2.5-Pro on coding, 48.9 to 31.5 on the Vibe Coding Index, and Inkling 2 Small costs 1.3x less per output token ($1.00 vs $1.335 per million). Updated November 14, 2026; 29 benchmarks have a result for both.
Inkling 2 Small or MiMo-V2.5-Pro: which to pick
Pick Inkling 2 Small for coding: it scores 48.9 on the Vibe Coding Index against 31.5 for MiMo-V2.5-Pro, though on 3 benchmarks against 4.
Pick MiMo-V2.5-Pro for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
- Shared results
- 29
- Inkling 2 Small only
- 22
- MiMo-V2.5-Pro only
- 44
- Like-for-like categories
- 5 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
Inkling 2 Small
Inkling 2 Small scores 48.9 against 31.5.
3 and 4 benchmarks behind the scores
Intelligence
AA Intelligence Index
No call
Only Inkling 2 Small has a AA Intelligence Index result, 30.6.
Directional only
Agentic work
AA Agentic Index
No call
Only MiMo-V2.5-Pro has a AA Agentic Index result, 21.3.
Directional only
Reasoning
GPQA Diamond
No call
Only MiMo-V2.5-Pro has a GPQA Diamond result, 82.6%.
Directional only
Knowledge
MMLU Pro
No call
Only MiMo-V2.5-Pro has a MMLU Pro result, 84.6%.
Directional only
Web design
Design Arena: websites
No call
Only MiMo-V2.5-Pro has a Design Arena: websites result, 1262.
Directional only
General
Vals Index
No call
Only Inkling 2 Small has a Vals Index result, 56.1%.
Directional only
Long documents
Listed context window
Inkling 2 Small
Inkling 2 Small takes 1.05M tokens against 1.02M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Inkling 2 Small
Inkling 2 Small $0.0008, MiMo-V2.5-Pro $0.0011 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only MiMo-V2.5-Pro has the number, $0.03.
Directional only
At a glance
- Coding index
- Inkling 2 Small 48.9 from 3 benchmarks, MiMo-V2.5-Pro 31.5 from 4 benchmarks.
- Widest category
- Agentic work, 29.1 points apart on average over 2 shared benchmarks.
- Widest single gap
- Vibe Code Bench (Vals AI): Inkling 2 Small 81.5% against MiMo-V2.5-Pro 34.1%, 47.4 points apart on a 0 to 100 scale.
- Output price
- Inkling 2 Small $1.00 against MiMo-V2.5-Pro $1.335 per million output tokens, 1.3x apart.
- Context window
- Inkling 2 Small takes 1.05M tokens, MiMo-V2.5-Pro 1.02M.
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 | Inkling 2 Small | Bars | MiMo-V2.5-Pro | Ties |
|---|---|---|---|---|
| Coding | 7 | 2 | ||
| Agentic work | 2 | 0 | ||
| Reasoning | 1 | 3 | ||
| Knowledge | 0 | 2 | ||
| General | 2 | 10 | ||
| All shared boards | 12 | 17 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index72
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| LMArena WebDev | 1647 | 1479 | Inkling 2 Small |
| AA Coding Index | Not measured | 60.2 | Only MiMo-V2.5-Pro measured |
| LiveCodeBench (Vals AI) | Not measured | 81.3% | Only MiMo-V2.5-Pro measured |
| SWE-bench Verified (Vals AI) | Not measured | 74.0% | Only MiMo-V2.5-Pro measured |
| Terminal-Bench 4 (Vals AI) | 12.6% | 0.5% | Inkling 2 Small |
| Vibe Code Bench (Vals AI) | 81.5% | 34.1% | Inkling 2 Small |
| Code migration (Vals AI) | Not measured | 21.6% | Only MiMo-V2.5-Pro measured |
| ProgramBench (Vals AI) | 0.5% | Not measured | Only Inkling 2 Small measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 57.3% | Only MiMo-V2.5-Pro measured |
| SWE-bench Multimodal (Vals AI) | 43.1% | Not measured | Only Inkling 2 Small measured |
| CyberBench (Vals AI) | 72.7% | Not measured | Only Inkling 2 Small measured |
| SciCode | 52.3% | 50.6% | Inkling 2 Small |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 43.2% | Only MiMo-V2.5-Pro measured |
| Terminal-Bench 4.0 (Artificial Analysis run) | 13.1% | 0.0% | Inkling 2 Small |
| FrontierCode 2.0 | 25.4% | Not measured | Only Inkling 2 Small measured |
| ALE-Bench | Not measured | 899.8 | Only MiMo-V2.5-Pro measured |
| LMArena Text: coding | 1455 | 1501 | MiMo-V2.5-Pro |
| LMArena Text: software and IT | 1443 | 1495 | MiMo-V2.5-Pro |
| LMArena WebDev: React | 1660 | 1468 | Inkling 2 Small |
| LMArena WebDev: HTML | 1661 | 1471 | Inkling 2 Small |
| SWE-Bench Pro V2 | 97.7% | Not measured | Only Inkling 2 Small measured |
| GameBench 2 | Not measured | 37.7 | Only MiMo-V2.5-Pro measured |
| Neither model has a result on the other 30 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| AA Intelligence Index | 30.6 | Not measured | Only Inkling 2 Small measured |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| AA Agentic Index | Not measured | 21.3 | Only MiMo-V2.5-Pro measured |
| SREBench (Vals AI) | 1.9% | Not measured | Only Inkling 2 Small measured |
| Finance Agent (Vals AI) | Not measured | 41.5% | Only MiMo-V2.5-Pro measured |
| Tax Agent Bench (Vals AI) | 38.9% | 11.5% | Inkling 2 Small |
| Legal Research Bench (Vals AI) | 46.6% | 15.9% | Inkling 2 Small |
| Harvey's Legal Agent Benchmark (Vals AI) | 21.7% | Not measured | Only Inkling 2 Small measured |
| Excel Modeling Benchmark (Vals AI) | Not measured | 55.2% | Only MiMo-V2.5-Pro measured |
| BioMysteryBench (Vals AI) | 70.0% | Not measured | Only Inkling 2 Small measured |
| Terminal-Bench-Science (Vals AI) | 2.9% | Not measured | Only Inkling 2 Small measured |
| Vals Science Index | 32.7% | Not measured | Only Inkling 2 Small measured |
| τ²-Bench Telecom | Not measured | 94.2% | Only MiMo-V2.5-Pro measured |
| APEX-Agents | 46.8% | Not measured | Only Inkling 2 Small measured |
| MCP Atlas | 85.4% | Not measured | Only Inkling 2 Small measured |
| Neither model has a result on the other 31 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index13
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 82.6% | Only MiMo-V2.5-Pro measured |
| MysteryMechanism (Vals AI) | 25.2% | Not measured | Only Inkling 2 Small measured |
| GPQA Diamond (Artificial Analysis run) | Not measured | 86.6% | Only MiMo-V2.5-Pro measured |
| Humanity's Last Exam (Artificial Analysis run) | 44.1% | 35.7% | Inkling 2 Small |
| HLE-Diamond (Artificial Analysis run) | 28.7% | Not measured | Only Inkling 2 Small measured |
| CritPt v2, hard subset (Artificial Analysis run) | 35.0% | Not measured | Only Inkling 2 Small measured |
| ARC-AGI | 96.5% | Not measured | Only Inkling 2 Small measured |
| ARC-AGI-2 | 81.7% | Not measured | Only Inkling 2 Small measured |
| LMArena Text: hard prompts | 1421 | 1485 | MiMo-V2.5-Pro |
| LMArena Text: expert | 1478 | 1502 | MiMo-V2.5-Pro |
| LMArena Text: hard prompts in English | 1424 | 1494 | MiMo-V2.5-Pro |
| Neither model has a result on the other 15 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index4 boards, none shared
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| ProofBench | Not measured | 22.0% | Only MiMo-V2.5-Pro measured |
| LMArena Text: math | Not measured | 1481 | Only MiMo-V2.5-Pro measured |
| LMArena Text: mathematical work | Not measured | 1493 | Only MiMo-V2.5-Pro measured |
| MathArena | 42.4% | Not measured | Only Inkling 2 Small measured |
| Neither model has a result on the other 10 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 84.6% | Only MiMo-V2.5-Pro measured |
| LegalBench (Vals AI) | Not measured | 77.1% | Only MiMo-V2.5-Pro measured |
| CorpFin (Vals AI) | Not measured | 61.4% | Only MiMo-V2.5-Pro measured |
| TaxEval (Vals AI) | Not measured | 73.8% | Only MiMo-V2.5-Pro measured |
| MedCode (Vals AI) | Not measured | 32.5% | Only MiMo-V2.5-Pro measured |
| AA-Omniscience | 16.1 | Not measured | Only Inkling 2 Small measured |
| LMArena Text: science | 1409 | 1482 | MiMo-V2.5-Pro |
| LMArena Text: medicine and healthcare | Not measured | 1473 | Only MiMo-V2.5-Pro measured |
| LMArena Text: legal and government | Not measured | 1475 | Only MiMo-V2.5-Pro measured |
| LMArena Text: business and finance | 1415 | 1467 | MiMo-V2.5-Pro |
| Neither model has a result on the other 11 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1262 | Only MiMo-V2.5-Pro measured |
| Design Arena: UI components | Not measured | 1243 | Only MiMo-V2.5-Pro measured |
| Design Arena: game dev | Not measured | 1264 | Only MiMo-V2.5-Pro measured |
| Design Arena: data viz | Not measured | 1257 | Only MiMo-V2.5-Pro measured |
| Design Arena: 3D | Not measured | 1232 | Only MiMo-V2.5-Pro measured |
| Design Arena: all code categories | Not measured | 1261 | Only MiMo-V2.5-Pro measured |
| Design Arena: SVG | Not measured | 1184 | Only MiMo-V2.5-Pro measured |
| Design Arena: ASCII art | Not measured | 1151 | Only MiMo-V2.5-Pro measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index210
| Benchmark | Inkling 2 Small | MiMo-V2.5-Pro | Leader |
|---|---|---|---|
| Vals Index | 56.1% | Not measured | Only Inkling 2 Small measured |
| SAGE (Vals AI) | 88.6% | Not measured | Only Inkling 2 Small measured |
| MedScribe (Vals AI) | Not measured | 83.7% | Only MiMo-V2.5-Pro measured |
| IFBench | Not measured | 79.9% | Only MiMo-V2.5-Pro measured |
| Long context reasoning (AA-LCR) | 83.3% | 79.7% | Inkling 2 Small |
| GDPval-AA | 1630 | 1128 | Inkling 2 Small |
| DTBench | Not measured | 84.5% | Only MiMo-V2.5-Pro measured |
| LMCA | Not measured | 29.5% | Only MiMo-V2.5-Pro measured |
| LMArena Text | 1403 | 1464 | MiMo-V2.5-Pro |
| LMArena Text: instruction following | 1408 | 1476 | MiMo-V2.5-Pro |
| LMArena Text: creative writing | 1348 | 1437 | MiMo-V2.5-Pro |
| LMArena Text: English | 1418 | 1477 | MiMo-V2.5-Pro |
| LMArena Text: non-English | 1390 | 1448 | MiMo-V2.5-Pro |
| LMArena Text: Chinese | Not measured | 1507 | Only MiMo-V2.5-Pro measured |
| LMArena Text: German | Not measured | 1457 | Only MiMo-V2.5-Pro measured |
| LMArena Text: Japanese | Not measured | 1409 | Only MiMo-V2.5-Pro measured |
| LMArena Text: Korean | Not measured | 1439 | Only MiMo-V2.5-Pro measured |
| LMArena Text: French | Not measured | 1487 | Only MiMo-V2.5-Pro measured |
| LMArena Text: Spanish | Not measured | 1469 | Only MiMo-V2.5-Pro measured |
| LMArena Text: Russian | 1377 | 1450 | MiMo-V2.5-Pro |
| LMArena Text: Polish | Not measured | 1461 | Only MiMo-V2.5-Pro measured |
| LMArena Text: multi-turn | 1408 | 1476 | MiMo-V2.5-Pro |
| LMArena Text: longer queries | 1403 | 1481 | MiMo-V2.5-Pro |
| LMArena Text: writing and language | 1381 | 1451 | MiMo-V2.5-Pro |
| LMArena Text: entertainment and media | 1359 | 1437 | MiMo-V2.5-Pro |
| EQ-Bench 4 | Not measured | 1198 | Only MiMo-V2.5-Pro measured |
| Neither model has a result on the other 23 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Inkling 2 Small | MiMo-V2.5-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
Inkling 2 Small costs less
Repository review
50K input + 3K output tokens
Inkling 2 Small costs less
Agent loop
200K input + 10K output tokens
Inkling 2 Small 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 | Thinking Machines Inkling 2 Small | Xiaomi MiMo-V2.5-Pro |
|---|---|---|
| Maker | Thinking Machines | Xiaomi |
| Weights | Open weights | Open weights |
| Released | November 9, 2026 | April 22, 2026 |
| Context window | 1.05M | 1.02M |
| Input $/Mtok | $0.30 | $0.4575 |
| Output $/Mtok | $1.00 | $1.335 |
| Coding index | 48.9 | 31.5 |
| Independent measurements behind it | 3 | 4 |
| Cost per solved task | Not computable | $0.03 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Inkling 2 Small better than MiMo-V2.5-Pro for coding?
Pick Inkling 2 Small for coding: it scores 48.9 on the Vibe Coding Index against 31.5 for MiMo-V2.5-Pro, though on 3 benchmarks against 4. Pick MiMo-V2.5-Pro for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
Which is cheaper, Inkling 2 Small or MiMo-V2.5-Pro?
Inkling 2 Small costs $0.30 per million input tokens and $1.00 per million output tokens; MiMo-V2.5-Pro costs $0.4575 and $1.335. Cost per solved task is known for MiMo-V2.5-Pro only.
Which has the bigger context window, Inkling 2 Small or MiMo-V2.5-Pro?
Inkling 2 Small, with 1.05M tokens against 1.02M.
How many benchmarks is the Inkling 2 Small vs MiMo-V2.5-Pro comparison based on?
29 benchmarks have a result for both models as of November 14, 2026. Inkling 2 Small's coding index rests on 3 independent benchmarks and MiMo-V2.5-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.