Model comparison
GPT-5 Pro vs MiMo-V2.5
GPT-5 Pro is the stronger model overall, scoring 46.2 to 43.0 on the Noometry Index. MiMo-V2.5 costs 236× less per token, which makes it the better buy when GPT-5 Pro's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in knowledge, where GPT-5 Pro leads 56.2 to 40.2.
- MiMo-V2.5 is cheaper at $0.14 / $0.28 per million input/output tokens, against $15 / $120 for GPT-5 Pro.
- MiMo-V2.5 accepts more context: 1.05M tokens versus 400K.
- MiMo-V2.5 has downloadable open weights; the other is API-only.
Side by side
| GPT-5 Pro | MiMo-V2.5 | |
|---|---|---|
| Provider | OpenAI | Xiaomi |
| Noometry Index | 46.2 | 43.0 |
| Released | 2025-10-06 | 2026-04-22 |
| Weights | Proprietary | Open |
| Context window | 400K | 1.05M |
| Max output | 272K | 131K |
| Input $ / M tokens | $15 | $0.14 |
| Output $ / M tokens | $120 | $0.28 |
| Results tracked | 12 | 23 |
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Category by category
Coding Too close to call
GPT-5 Pro: 43.4 (#77), MiMo-V2.5: 43.6 (#75)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| LMArena WebDev | — | 1438 |
| SciCode | — | 43.1% |
| WeirdML | 60.4% | — |
| LMArena Coding | — | 1469 |
| ALE-Bench | — | 513.95 |
| AlgoTune | 1.31 | — |
Reasoning GPT-5 Pro leads
GPT-5 Pro: 39.2 (#52), MiMo-V2.5: 27.8 (#98)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| ARC-AGI-2 | 18.3% | — |
| SimpleBench | 61.6% | — |
| Kagi LLM Benchmark | 76.8% | — |
| ARC-AGI-1 | 70.2% | — |
| CritPt | — | 3.7% |
| EnigmaEval | 18.8% | — |
| LMArena Hard Prompts | — | 1450 |
| Epoch Capabilities Index | 150.26 | — |
Math GPT-5 Pro leads
GPT-5 Pro: 48.0 (#53), MiMo-V2.5: 35.4 (#145)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 55.8% | — |
| FrontierMath Tier 4 | 19.5% | — |
| ProofBench | — | 16% |
| LMArena Math | — | 1436 |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge GPT-5 Pro leads
GPT-5 Pro: 56.2 (#39), MiMo-V2.5: 40.2 (#109)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| Humanity's Last Exam | 31.6% | — |
| LMArena Expert | — | 1459 |
Multimodal Not comparable
GPT-5 Pro: —, MiMo-V2.5: 39.0 (#53)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| LMArena Vision | — | 1245 |
Multilingual Not comparable
GPT-5 Pro: —, MiMo-V2.5: 52.0 (#96)
| Benchmark | GPT-5 Pro | 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-5 Pro: —, MiMo-V2.5: 75.7 (#55)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| LMArena Instruction Following | — | 1433 |
Long Context Not comparable
GPT-5 Pro: —, MiMo-V2.5: 44.1 (#69)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| LMArena Longer Query | — | 1444 |
Writing & Preference Not comparable
GPT-5 Pro: —, MiMo-V2.5: 61.8 (#82)
| Benchmark | GPT-5 Pro | MiMo-V2.5 |
|---|---|---|
| LMArena Text | — | 1427 |
| LMArena Creative Writing | — | 1392 |
| LMArena Multi-Turn | — | 1445 |
Frequently asked questions
Is GPT-5 Pro better than MiMo-V2.5?
GPT-5 Pro is the stronger model overall, scoring 46.2 to 43.0 on the Noometry Index. MiMo-V2.5 costs 236× less per token, which makes it the better buy when GPT-5 Pro's lead doesn't matter for your workload.
Which is cheaper, GPT-5 Pro 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-5 Pro lists at $15 and $120.
Is GPT-5 Pro or MiMo-V2.5 better for coding?
They score almost the same on coding (43.4 vs 43.6); test both on your own repository before choosing.
Which has the bigger context window?
MiMo-V2.5 does, with 1.05M tokens against 400K.
How many benchmarks do GPT-5 Pro and MiMo-V2.5 share?
0 benchmarks have published results for both models. GPT-5 Pro has 12 scored results on Noometry and MiMo-V2.5 has 23.