GPT-5.2 vs MiMo-V2.6-Pro
GPT-5.2 
MiMo-V2.6-Pro Verdict
- MiMo-V2.6-Pro leads on quality: 64.3 vs 61.3.
- GPT-5.2 (xhigh) is stronger in coding, instruction following, maths.
- MiMo-V2.6-Pro is stronger in agents & tools, composite, knowledge, long context, reasoning.
- MiMo-V2.6-Pro is 8.8× cheaper ($0.548 vs $4.81 per 1M blended).
- GPT-5.2 (xhigh) streams 1.5× faster (79 vs 54 tokens per second).
| Metric | GPT-5.2 (xhigh) | MiMo-V2.6-Pro |
|---|---|---|
| BenchLeader Index | 61.3 | 64.3 |
| Agents & tools score | 54.8 | 55.1 |
| Coding score | 63.0 | – |
| Composite score | 65.7 | 84.8 |
| Instruction following score | 73.4 | – |
| Knowledge score | 57.6 | 66.8 |
| Long context score | 67.2 | 69.1 |
| Maths score | 58.4 | – |
| Reasoning score | 61.9 | 88.8 |
| Blended price $/M | $4.81 | $0.548 |
| Output speed | 79 tok/s | 54 tok/s |
| Time to first answer | 165.5 s | 39.8 s |
| Context window | 128k | 1.0M |
| GPQA Diamond | 91.4% | – |
| FrontierMath Tiers 1–3 | 67.4% | – |
| FrontierMath Tier 4 | 31.7% | – |
| OTIS Mock AIME | 96.1% | – |
| SimpleQA Verified | 37.1% | – |
| WeirdML | 72.2% | – |
| ProofBench | 15.0% | – |
| AA Intelligence Index | 30.4 | 46.3 |
| IFBench | 75.4% | – |
| AA-LCR | 82.7% | 86.3% |
| AA-Omniscience | -0.9 | 8.4 |
| Terminal-Bench Hard | 47.0% | – |
| GPQA Diamond (AA) | 90.3% | – |
| Humanity's Last Exam (AA) | 37.7% | 49.4% |
| SciCode (AA) | – | 60.9% |
| τ²-Bench Telecom (AA) | 84.8% | – |
| AIME (Vals) | 96.9% | – |
| LiveCodeBench | 85.4% | – |
| MMLU-Pro | 86.2% | – |
| LegalBench | 82.8% | – |
| CorpFin | 65.9% | – |
| TaxEval | 75.8% | – |
| MedQA | 94.1% | – |
| MGSM | 94.0% | – |
| Terminal-Bench 2.1 (Vals) | – | 67.8% |
| SWE-bench (Vals) | 75.8% | – |
| GPQA Diamond (Vals) | 91.7% | – |
| Vals Index | – | 59.7 |
| MCP Atlas | 67.6% | – |
| ARC-AGI-1 | 86.2% | – |
| ARC-AGI-2 | 52.9% | – |
| CritPt | 11.6% | 26.6% |
| GDPval (AA) | – | 58.7% |
| CaseLaw v2 | 66.0% | – |
| Code Migration | – | 43.0% |
| Excel Modeling Benchmark | – | 62.9% |
| Finance Agent v2 | – | 58.3% |
| Harvey's Legal Agent Benchmark | – | 10.8% |
| Legal Research Bench | – | 47.1% |
| MedCode | 49.8% | – |
| MedScribe | 84.4% | – |
| MMMU-Pro (Vals) | 86.7% | – |
| MortgageTax | 67.1% | – |
| SAGE | 49.3% | – |
| Terminal-Bench Science | – | 2.9% |
| Vibe Code Bench v1.1 | 53.5% | 85.2% |
| DrugDiscoveryBench | 29.3% | – |
| Chess Puzzles | 49.0% | – |
| EBR-bench | 23.0% | – |
| VPCT | 84.0% | – |
| LMCA | 43.9% | – |
| DTBench | 90.9% | – |
| Terminal-Bench 4.0 (AA) | – | 34.9% |
| AutomationBench | – | 58.6% |
| GDP.pdf | – | 19.2% |
| AA-Omniscience: accuracy | 44.3% | 34.9% |
| AA-Omniscience: non-hallucination | 18.8% | 59.4% |
| AA-Briefcase | – | 1522 |
Data as of 2026-09-23. Best configuration of each model; every score links to its source on the model pages.
GPT-5.2 vs MiMo-V2.6-Pro: questions
- Is GPT-5.2 better than MiMo-V2.6-Pro?
- MiMo-V2.6-Pro leads on quality: 64.3 vs 61.3. The BenchLeader Index combines every independent quality benchmark; MiMo-V2.6-Pro is ahead overall as of 2026-09-23, but check the category scores for your use.
- Is GPT-5.2 better than MiMo-V2.6-Pro for agentic tasks?
- MiMo-V2.6-Pro scores higher in agentic tasks (55 vs 55 on the category index, where 50 is average).
- Which is cheaper, GPT-5.2 or MiMo-V2.6-Pro?
- MiMo-V2.6-Pro is cheaper: $0.548 against $4.81 per million tokens, blended at three input tokens per output token.
- Which is faster, GPT-5.2 or MiMo-V2.6-Pro?
- GPT-5.2 streams faster: 79 against 54 output tokens per second.
- Which has the larger context window?
- MiMo-V2.6-Pro accepts more context: 1.0M against 128k tokens.