Model comparison
Claude Opus 4.5 vs MiMo-V2.6-Pro
Claude Opus 4.5 and MiMo-V2.6-Pro score almost the same on the Noometry Index (50.5 vs 50.3), so choose on price, context window or the category you care about most.
Last verified . 15 shared benchmarks.
Summary
- They share 15 benchmarks with published results for both. Claude Opus 4.5 scores higher in 4 categories and MiMo-V2.6-Pro in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where MiMo-V2.6-Pro leads 54.5 to 38.6.
- The biggest single-benchmark swing is ProofBench: 36% for Claude Opus 4.5 and 70% for MiMo-V2.6-Pro.
- MiMo-V2.6-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $5 / $25 for Claude Opus 4.5.
- MiMo-V2.6-Pro accepts more context: 1.05M tokens versus 200K.
- MiMo-V2.6-Pro has downloadable open weights; the other is API-only.
Side by side
| Claude Opus 4.5 | MiMo-V2.6-Pro | |
|---|---|---|
| Provider | Anthropic | Xiaomi |
| Noometry Index | 50.5 | 50.3 |
| Released | 2025-11-01 | 2026-09-21 |
| Weights | Proprietary | Open |
| Context window | 200K | 1.05M |
| Max output | 64K | 131K |
| Input $ / M tokens | $5 | $0.43 |
| Output $ / M tokens | $25 | $0.87 |
| Results tracked | 69 | 19 |
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Category by category
Coding Too close to call
Claude Opus 4.5: 54.8 (#27), MiMo-V2.6-Pro: 55.5 (#23)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena WebDev | 1494 | 1629 |
| LMArena Coding | 1504 | 1534 |
| ALE-Bench | 1,025 | 1,158 |
| SWE-bench Verified | 76.7% | — |
| SWE-bench Verified (bash only) | 76.8% | — |
| SWE-bench Multilingual | 70.7% | — |
| SciCode | — | 60.9% |
| GSO | 26.5% | — |
| WeirdML | 63.7% | — |
| AlgoTune | 1.77 | — |
Agentic & Tool Use Claude Opus 4.5 leads
Claude Opus 4.5: 47.3 (#12), MiMo-V2.6-Pro: 37.5 (#35)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| Terminal-Bench | 63.1% | — |
| APEX-Agents | — | 59.5% |
| Berkeley Function Calling Leaderboard | 77.5% | — |
| GDPval | 45.5% | — |
| Remote Labor Index | 3.8% | — |
| τ²-bench Airline | 84% | — |
| τ²-bench Banking | 24.7% | — |
| τ²-bench Retail | 79.6% | — |
| τ²-bench Telecom | 92.3% | — |
| Cybench | 82% | — |
| DeepResearch Bench | 54.8% | — |
| OSWorld | 66.3% | — |
| BALROG | 43.5% | — |
| LMArena Search | 1180 | — |
| METR Time Horizons | 75% | — |
| Vending-Bench 2 | 4,967 | — |
Reasoning Too close to call
Claude Opus 4.5: 42.6 (#51), MiMo-V2.6-Pro: 43.1 (#50)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Hard Prompts | 1476 | 1512 |
| ARC-AGI-2 | 37.6% | — |
| SimpleBench | 62% | — |
| Kagi LLM Benchmark | 80.2% | — |
| NYT Connections (extended) | 52.5% | — |
| ARC-AGI-1 | 80% | — |
| CritPt | — | 26.6% |
| Chess Puzzles | 12% | — |
| EnigmaEval | 11.9% | — |
| EBR-Bench | 14.3% | — |
| Mystery Game Puzzles | 22% | — |
| DTBench | 89.9% | — |
| LMCA | 44.5% | — |
| Epoch Capabilities Index | 150.09 | — |
| ForecastBench | 60.7 | — |
Math MiMo-V2.6-Pro leads
Claude Opus 4.5: 38.6 (#132), MiMo-V2.6-Pro: 54.5 (#45)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| ProofBench | 36% | 70% |
| LMArena Math | 1463 | 1494 |
| FrontierMath (Tiers 1-3) | 34.4% | — |
| FrontierMath Tier 4 | 4.9% | — |
| OTIS Mock AIME 2024-2025 | 86.1% | — |
| FrontierMath (Feb 2025 set) | 20.7% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Opus 4.5 leads
Claude Opus 4.5: 56.5 (#44), MiMo-V2.6-Pro: 43.5 (#92)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Expert | 1487 | 1543 |
| GPQA Diamond | 86% | — |
| Humanity's Last Exam | 25.2% | — |
| SimpleQA Verified | 45.7% | — |
| Vectara Hallucination Rate | 10.9% | — |
Multimodal MiMo-V2.6-Pro leads
Claude Opus 4.5: 31.4 (#107), MiMo-V2.6-Pro: 40.8 (#43)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Vision | — | 1264 |
| GeoBench | 75% | — |
| VPCT | 40% | — |
| Furniture Assembly | 28.3% | — |
| LMArena Document | 1462 | — |
Multilingual MiMo-V2.6-Pro leads
Claude Opus 4.5: 54.3 (#47), MiMo-V2.6-Pro: 56.9 (#14)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Non-English | 1438 | 1474 |
| LMArena Chinese | 1470 | 1529 |
| LMArena Russian | 1447 | 1480 |
| LMArena French | 1471 | — |
| LMArena German | 1449 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1424 | — |
| LMArena Spanish | 1458 | — |
Instruction Following Too close to call
Claude Opus 4.5: 77.5 (#19), MiMo-V2.6-Pro: 78.2 (#12)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Instruction Following | 1478 | 1493 |
Long Context Too close to call
Claude Opus 4.5: 46.5 (#22), MiMo-V2.6-Pro: 46.0 (#27)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Longer Query | 1480 | 1501 |
| CL-bench | 21.1% | — |
Writing & Preference Claude Opus 4.5 leads
Claude Opus 4.5: 68.1 (#28), MiMo-V2.6-Pro: 66.8 (#33)
| Benchmark | Claude Opus 4.5 | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Text | 1451 | 1492 |
| LMArena Creative Writing | 1445 | 1468 |
| LMArena Multi-Turn | 1466 | 1464 |
| EQ-Bench Creative Writing | 1687 | — |
Frequently asked questions
Is Claude Opus 4.5 better than MiMo-V2.6-Pro?
Claude Opus 4.5 and MiMo-V2.6-Pro score almost the same on the Noometry Index (50.5 vs 50.3), so choose on price, context window or the category you care about most.
Which is cheaper, Claude Opus 4.5 or MiMo-V2.6-Pro?
MiMo-V2.6-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Claude Opus 4.5 lists at $5 and $25.
Is Claude Opus 4.5 or MiMo-V2.6-Pro better for coding?
They score almost the same on coding (54.8 vs 55.5); test both on your own repository before choosing.
Which has the bigger context window?
MiMo-V2.6-Pro does, with 1.05M tokens against 200K.
How many benchmarks do Claude Opus 4.5 and MiMo-V2.6-Pro share?
15 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and MiMo-V2.6-Pro has 19.