Model comparison
GPT-4.1 vs MiMo-V2.5-Pro
Head-to-head evidence from 13 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-4.1 #108 (Supported); MiMo-V2.5-Pro #14 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-4.1 and MiMo-V2.5-Pro share 13 comparable benchmark results. 2 of 8 categories are comparable. 7 results are unique to GPT-4.1; 18 to MiMo-V2.5-Pro.
Updated July 21, 2026- Shared results
- 13
- GPT-4.1 only
- 7
- MiMo-V2.5-Pro only
- 18
- Comparable categories
- 2 / 8
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. GPT-4.1 only becomes the better choice if knowledge is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 13 shared benchmark results across 6 evidence categories; 2 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
MiMo-V2.5-Pro is clearly ahead on the BenchAlign aggregate, 70.19 to 51.11. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
MiMo-V2.5-Pro's sharpest advantage is in coding, where it averages 57.2 against 54.6. GPT-4.1 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.
MiMo-V2.5-Pro is the reasoning model in the pair, while GPT-4.1 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | GPT-4.1 | Δ | MiMo-V2.5-Pro |
|---|---|---|---|
| Knowledge | GPT-4.166.3 | Margin← 18.3 | MiMo-V2.5-Pro48.0 |
| Coding | GPT-4.154.6 | Margin→ 2.6 | MiMo-V2.5-Pro57.2 |
| Agentic | GPT-4.1Not measured | MarginNo overlap | MiMo-V2.5-Pro68.4 |
| Math | GPT-4.14.1 | MarginNo overlap | MiMo-V2.5-ProNot measured |
| Inst. Following | GPT-4.187.4 | MarginNo overlap | MiMo-V2.5-ProNot measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-4.1 | MiMo-V2.5-Pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-4.1$2 input / $8 output | MiMo-V2.5-ProNot available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-4.1108 tok/s | MiMo-V2.5-ProNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-4.11.02 s | MiMo-V2.5-ProNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-4.11M | MiMo-V2.5-Pro1M | Listed context windows are equal. |
Benchmark Deep Dive
Agentic14 benchmarks
| Benchmark | GPT-4.1 | MiMo-V2.5-Pro | Result |
|---|---|---|---|
| τ²-bench resultsSource | 47.1% | 94.2% | MiMo-V2.5-Pro leads |
| Gert LabsSource | 25.65% | 62.70% | MiMo-V2.5-Pro leads |
| Claw-EvalSource | — | 63.8% | Not comparable |
| GDPval-AASource | — | 1265 | Not comparable |
| τ³-bench resultsSource | — | 72.9% | Not comparable |
| Terminal-Bench 2.0Source | — | 68.4% | Not comparable |
| AA Agentic IndexSource | — | 29.1% | Not comparable |
| GDPval-AASource | — | 38.3% | Not comparable |
| APEX-Agents-AASource | — | 2.4% | Not comparable |
| AA BriefcaseSource | — | 873 | Not comparable |
| AA ITBenchSource | — | 38.2% | Not comparable |
| terminalBenchHardSource | — | 43.2% | Not comparable |
| aaTerminalBench21Source | — | 65.2% | Not comparable |
| AA Harvey LABSource | — | 73.3% | Not comparable |
CodingMiMo-V2.5-Pro wins5 benchmarks
Reasoning2 benchmarks
KnowledgeGPT-4.1 wins11 benchmarks
| Benchmark | GPT-4.1 | MiMo-V2.5-Pro | Result |
|---|---|---|---|
| MMLUSource | 90.2% | — | Not comparable |
| GPQASource | 66.3% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 19.4% | 42.2% | MiMo-V2.5-Pro leads |
| AA-GPQA DiamondSource | 66.6% | 86.6% | MiMo-V2.5-Pro leads |
| AA-HLESource | 4.6% | 33.8% | MiMo-V2.5-Pro leads |
| AA-Omniscience IndexSource | -36.2% | 3.6% | MiMo-V2.5-Pro leads |
| AA-Omniscience AccuracySource | 24.2% | 22.6% | GPT-4.1 leads |
| AA-Omniscience Hallucination RateSource | 79.6% | 24.5% | MiMo-V2.5-Pro leads |
| HLESource | — | 48% | Not comparable |
| HLE w/o toolsSource | — | 34% | Not comparable |
| AA Openness IndexSource | — | 38.9% | Not comparable |
Math2 benchmarks
Multimodal2 benchmarks
Frequently Asked Questions (3)
Which is better, GPT-4.1 or MiMo-V2.5-Pro?
MiMo-V2.5-Pro is ahead on BenchLM's BenchAlign leaderboard, 70.19 to 51.11.
Which is better for knowledge tasks, GPT-4.1 or MiMo-V2.5-Pro?
GPT-4.1 has the edge for knowledge tasks in this comparison, averaging 66.3 versus 48. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.
Which is better for coding, GPT-4.1 or MiMo-V2.5-Pro?
MiMo-V2.5-Pro has the edge for coding in this comparison, averaging 57.2 versus 54.6. Inside this category, AA-SciCode is the benchmark that creates the most daylight between them.
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