Model comparison
GPT-6 Sol vs MiMo-V2.6-Flash
GPT-6 Sol is the stronger model overall, scoring 49.2 to 44.4 on the Noometry Index. MiMo-V2.6-Flash 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 . 12 shared benchmarks.
Summary
- They share 12 benchmarks with published results for both. GPT-6 Sol scores higher in 5 categories and MiMo-V2.6-Flash in 4 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 29.6.
- MiMo-V2.6-Flash 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 1.05M.
- MiMo-V2.6-Flash has downloadable open weights; the other is API-only.
Side by side
| GPT-6 Sol | MiMo-V2.6-Flash | |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 49.2 | 44.4 |
| Released | 2026-09-22 | 2026-09-22 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 1.05M |
| Max output | 128K | 131K |
| Input $ / M tokens | $2 | $0.14 |
| Output $ / M tokens | $10 | $0.28 |
| Results tracked | 22 | 13 |
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Category by category
Coding GPT-6 Sol leads
GPT-6 Sol: 59.6 (#11), MiMo-V2.6-Flash: 44.3 (#68)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Coding | 1453 | 1516 |
| DeepSWE | 68.8% | — |
| FrontierCode | 49.3% | — |
| LMArena WebDev | 1692 | — |
Agentic & Tool Use Not comparable
GPT-6 Sol: 33.5 (#49), MiMo-V2.6-Flash: —
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| GDP.pdf | 28% | — |
Reasoning GPT-6 Sol leads
GPT-6 Sol: 49.3 (#34), MiMo-V2.6-Flash: 29.6 (#82)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1481 |
| NYT Connections (extended) | 90.1% | — |
| EBR-Bench | 53.3% | — |
Math MiMo-V2.6-Flash leads
GPT-6 Sol: 35.8 (#135), MiMo-V2.6-Flash: 37.4 (#97)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Math | 1404 | 1477 |
Knowledge Too close to call
GPT-6 Sol: 43.0 (#87), MiMo-V2.6-Flash: 42.0 (#91)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Expert | 1449 | 1516 |
| Vectara Hallucination Rate | 6.5% | — |
Multimodal GPT-6 Sol leads
GPT-6 Sol: 47.6 (#9), MiMo-V2.6-Flash: 40.2 (#39)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Vision | — | 1266 |
| Furniture Assembly | 58.3% | — |
Multilingual MiMo-V2.6-Flash leads
GPT-6 Sol: 51.0 (#113), MiMo-V2.6-Flash: 54.6 (#41)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Non-English | 1389 | 1439 |
| LMArena Chinese | 1416 | 1501 |
| LMArena Russian | 1407 | 1424 |
| LMArena Spanish | 1377 | — |
Instruction Following MiMo-V2.6-Flash leads
GPT-6 Sol: 74.4 (#97), MiMo-V2.6-Flash: 77.0 (#33)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Instruction Following | 1406 | 1463 |
Long Context MiMo-V2.6-Flash leads
GPT-6 Sol: 43.2 (#100), MiMo-V2.6-Flash: 44.8 (#52)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Longer Query | 1415 | 1465 |
Writing & Preference GPT-6 Sol leads
GPT-6 Sol: 72.3 (#15), MiMo-V2.6-Flash: 63.9 (#61)
| Benchmark | GPT-6 Sol | MiMo-V2.6-Flash |
|---|---|---|
| LMArena Text | 1396 | 1459 |
| LMArena Creative Writing | 1392 | 1408 |
| LMArena Multi-Turn | 1405 | 1460 |
| EQ-Bench Creative Writing | 2125 | — |
Frequently asked questions
Is GPT-6 Sol better than MiMo-V2.6-Flash?
GPT-6 Sol is the stronger model overall, scoring 49.2 to 44.4 on the Noometry Index. MiMo-V2.6-Flash 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-V2.6-Flash?
MiMo-V2.6-Flash 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-V2.6-Flash better for coding?
GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 44.3 in the Noometry coding category.
Which has the bigger context window?
GPT-6 Sol does, with 1.05M tokens against 1.05M.
How many benchmarks do GPT-6 Sol and MiMo-V2.6-Flash share?
12 benchmarks have published results for both models. GPT-6 Sol has 22 scored results on Noometry and MiMo-V2.6-Flash has 13.