Model comparison
GPT-6.1 Sol vs MiMo-V2.5
MiMo-V2.5 has enough public results to be ranked (#89); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in coding, where GPT-6.1 Sol leads 51.4 to 43.6.
- MiMo-V2.5 is cheaper at $0.14 / $0.28 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 1.05M.
- MiMo-V2.5 has downloadable open weights; the other is API-only.
Side by side
| GPT-6.1 Sol | MiMo-V2.5 | |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 42.1 | 43.0 |
| Released | 2026-09-29 | 2026-04-22 |
| 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 | 2 | 23 |
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Category by category
Coding GPT-6.1 Sol leads
GPT-6.1 Sol: 51.4, MiMo-V2.5: 43.6 (#75)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| DeepSWE | 75.2% | — |
| LMArena WebDev | — | 1438 |
| SciCode | — | 43.1% |
| LMArena Coding | — | 1469 |
| ALE-Bench | — | 513.95 |
Agentic & Tool Use Not comparable
GPT-6.1 Sol: 34.3, MiMo-V2.5: —
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| GDP.pdf | 32% | — |
Reasoning Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 27.8 (#98)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| CritPt | — | 3.7% |
| LMArena Hard Prompts | — | 1450 |
Math Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 35.4 (#145)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| ProofBench | — | 16% |
| LMArena Math | — | 1436 |
Knowledge Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 40.2 (#109)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Expert | — | 1459 |
Multimodal Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 39.0 (#53)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1245 |
Multilingual Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 52.0 (#96)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1467 |
| LMArena French | — | 1447 |
| LMArena German | — | 1421 |
| LMArena Japanese | — | 1304 |
| LMArena Korean | — | 1363 |
| LMArena Russian | — | 1395 |
| LMArena Spanish | — | 1412 |
Instruction Following Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 75.7 (#55)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | — | 1433 |
Long Context Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 44.1 (#69)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | — | 1444 |
Writing & Preference Not comparable
GPT-6.1 Sol: —, MiMo-V2.5: 61.8 (#82)
| Benchmark | GPT-6.1 Sol | MiMo-V2.5 |
|---|---|---|
| LMArena Text | — | 1427 |
| LMArena Creative Writing | — | 1392 |
| LMArena Multi-Turn | — | 1445 |
Frequently asked questions
Is GPT-6.1 Sol better than MiMo-V2.5?
MiMo-V2.5 has enough public results to be ranked (#89); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Which is cheaper, GPT-6.1 Sol or MiMo-V2.5?
MiMo-V2.5 is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; GPT-6.1 Sol lists at $2 and $10.
Is GPT-6.1 Sol or MiMo-V2.5 better for coding?
GPT-6.1 Sol scores higher on coding benchmarks: 51.4 versus 43.6 in the Noometry coding category.
Which has the bigger context window?
GPT-6.1 Sol does, with 1.05M tokens against 1.05M.
How many benchmarks do GPT-6.1 Sol and MiMo-V2.5 share?
0 benchmarks have published results for both models. GPT-6.1 Sol has 2 scored results on Noometry and MiMo-V2.5 has 23.