Model comparison
GPT-4.1 vs MiMo-V2.5
Head-to-head evidence from 2 shared benchmark results across 2 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-4.1 #108 (Supported); MiMo-V2.5 #62 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-4.1 and MiMo-V2.5 share 2 comparable benchmark results. 1 of 8 categories are comparable. 18 results are unique to GPT-4.1; 9 to MiMo-V2.5.
Updated July 21, 2026- Shared results
- 2
- GPT-4.1 only
- 18
- MiMo-V2.5 only
- 9
- Comparable categories
- 1 / 8
Pick MiMo-V2.5 if you want the stronger benchmark profile. GPT-4.1 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 2 evidence categories; 1 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 is clearly ahead on the BenchAlign aggregate, 58.62 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's sharpest advantage is in coding, where it averages 56.1 against 54.6.
MiMo-V2.5 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 |
|---|---|---|---|
| Coding | GPT-4.154.6 | Margin→ 1.5 | MiMo-V2.556.1 |
| Agentic | GPT-4.1Not measured | MarginNo overlap | MiMo-V2.565.8 |
| Knowledge | GPT-4.166.3 | MarginNo overlap | MiMo-V2.5Not measured |
| Math | GPT-4.14.1 | MarginNo overlap | MiMo-V2.5Not measured |
| Multimodal | GPT-4.1Not measured | MarginNo overlap | MiMo-V2.579.0 |
| Inst. Following | GPT-4.187.4 | MarginNo overlap | MiMo-V2.5Not 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 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-4.1$2 input / $8 output | MiMo-V2.5Not available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-4.1108 tok/s | MiMo-V2.5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-4.11.02 s | MiMo-V2.5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-4.11M | MiMo-V2.51M | Listed context windows are equal. |
Benchmark Deep Dive
Agentic6 benchmarks
CodingMiMo-V2.5 wins4 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | GPT-4.1 | MiMo-V2.5 | Result |
|---|---|---|---|
| MMLUSource | 90.2% | — | Not comparable |
| GPQASource | 66.3% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 19.4% | — | Not comparable |
| AA-GPQA DiamondSource | 66.6% | — | Not comparable |
| AA-HLESource | 4.6% | — | Not comparable |
| AA-Omniscience IndexSource | -36.2% | — | Not comparable |
| AA-Omniscience AccuracySource | 24.2% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 79.6% | — | Not comparable |
Math2 benchmarks
Multimodal5 benchmarks
Frequently Asked Questions (2)
Which is better, GPT-4.1 or MiMo-V2.5?
MiMo-V2.5 is ahead on BenchLM's BenchAlign leaderboard, 58.62 to 51.11.
Which is better for coding, GPT-4.1 or MiMo-V2.5?
MiMo-V2.5 has the edge for coding in this comparison, averaging 56.1 versus 54.6. GPT-4.1 stays close enough that the answer can still flip depending on your workload.
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