Model comparison
GPT-6 Sol vs MiMo-V2-Omni
GPT-6 Sol is the stronger model overall, scoring 61.8 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 23× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. GPT-6 Sol scores higher in 6 categories and MiMo-V2-Omni in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-6 Sol leads 87.2 to 39.1.
- MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
- GPT-6 Sol accepts more context: 1.05M tokens versus 262K.
Side by side
| GPT-6 Sol | MiMo-V2-Omni | |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 61.8 | 43.6 |
| Released | 2026-09-22 | 2026-03-18 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 262K |
| Max output | 128K | 131K |
| Input $ / M tokens | $2 | $0.14 |
| Output $ / M tokens | $10 | $0.28 |
| Results tracked | 45 | 18 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding GPT-6 Sol leads
GPT-6 Sol: 60.1 (#11), MiMo-V2-Omni: 43.3 (#89)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Coding | 1447 | 1466 |
| DeepSWE | 68.8% | — |
| FrontierCode | 49.3% | — |
| LMArena WebDev | 1688 | — |
| SciCode | 57.6% | — |
| ALE-Bench | 2,462 | — |
Agentic & Tool Use Not comparable
GPT-6 Sol: 37.2 (#36), MiMo-V2-Omni: —
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| APEX-Agents | 54.3% | — |
| GDP.pdf | 26.4% | — |
| Vending-Bench 2 | 14,428 | — |
Reasoning GPT-6 Sol leads
GPT-6 Sol: 74.0 (#9), MiMo-V2-Omni: 29.7 (#88)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Hard Prompts | 1418 | 1445 |
| ARC-AGI-2 | 89.6% | — |
| NYT Connections (extended) | 90.1% | — |
| ARC-AGI-1 | 95.5% | — |
| CritPt | 30.9% | — |
| EBR-Bench | 53.3% | — |
| Mystery Game Puzzles | 56% | — |
| DTBench | 97.3% | — |
| LMCA | 59.1% | — |
| Epoch Capabilities Index | 162.72 | — |
Math GPT-6 Sol leads
GPT-6 Sol: 87.2 (#7), MiMo-V2-Omni: 39.1 (#115)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Math | 1402 | 1430 |
| FrontierMath (Tiers 1-3) | 89.8% | — |
| FrontierMath Tier 4 | 90% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 83% | — |
Knowledge GPT-6 Sol leads
GPT-6 Sol: 64.8 (#15), MiMo-V2-Omni: 40.5 (#118)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | 1439 | 1449 |
| GPQA Diamond | 94.3% | — |
| SimpleQA Verified | 60.7% | — |
| Vectara Hallucination Rate | 6.5% | — |
Multimodal GPT-6 Sol leads
GPT-6 Sol: 47.6 (#10), MiMo-V2-Omni: 38.6 (#63)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | 1245 | 1228 |
| Blueprint-Bench 2 | 36.9% | — |
| Furniture Assembly | 58.3% | — |
Multilingual MiMo-V2-Omni leads
GPT-6 Sol: 50.5 (#118), MiMo-V2-Omni: 51.8 (#102)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | 1385 | 1404 |
| LMArena Chinese | 1405 | 1465 |
| LMArena French | 1410 | 1447 |
| LMArena German | 1390 | 1399 |
| LMArena Japanese | 1385 | 1317 |
| LMArena Korean | 1341 | 1355 |
| LMArena Russian | 1401 | 1412 |
| LMArena Spanish | 1384 | 1434 |
Instruction Following Too close to call
GPT-6 Sol: 74.5 (#94), MiMo-V2-Omni: 75.2 (#66)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | 1412 | 1428 |
Long Context MiMo-V2-Omni leads
GPT-6 Sol: 43.1 (#108), MiMo-V2-Omni: 44.1 (#76)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | 1411 | 1442 |
Writing & Preference GPT-6 Sol leads
GPT-6 Sol: 71.9 (#18), MiMo-V2-Omni: 61.4 (#87)
| Benchmark | GPT-6 Sol | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | 1395 | 1423 |
| LMArena Creative Writing | 1378 | 1392 |
| LMArena Multi-Turn | 1412 | 1445 |
| EQ-Bench Creative Writing | 2125 | — |
Frequently asked questions
Is GPT-6 Sol better than MiMo-V2-Omni?
GPT-6 Sol is the stronger model overall, scoring 61.8 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 23× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.
Which is cheaper, GPT-6 Sol or MiMo-V2-Omni?
MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; GPT-6 Sol lists at $2 and $10.
Is GPT-6 Sol or MiMo-V2-Omni better for coding?
GPT-6 Sol scores higher on coding benchmarks: 60.1 versus 43.3 in the Noometry coding category.
Which has the bigger context window?
GPT-6 Sol does, with 1.05M tokens against 262K.
How many benchmarks do GPT-6 Sol and MiMo-V2-Omni share?
18 benchmarks have published results for both models. GPT-6 Sol has 45 scored results on Noometry and MiMo-V2-Omni has 18.