Model comparison
GPT-5.4 mini 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-5.4 mini #75 (Estimated); MiMo-V2.5 #62 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5.4 mini and MiMo-V2.5 share 2 comparable benchmark results. 2 of 8 categories are comparable. 28 results are unique to GPT-5.4 mini; 9 to MiMo-V2.5.
Updated July 21, 2026- Shared results
- 2
- GPT-5.4 mini only
- 28
- MiMo-V2.5 only
- 9
- Comparable categories
- 2 / 8
Pick MiMo-V2.5 if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 2 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 has the cleaner BenchAlign overall profile here, landing at 58.62 versus 56.77. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
MiMo-V2.5's sharpest advantage is in multimodal & grounded, where it averages 79 against 76.6. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 60% to 65.8%.
MiMo-V2.5 gives you the larger context window at 1M, compared with 400K for GPT-5.4 mini.
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-5.4 mini | Δ | MiMo-V2.5 |
|---|---|---|---|
| Multimodal | GPT-5.4 mini76.6 | Margin→ 2.4 | MiMo-V2.579.0 |
| Agentic | GPT-5.4 mini65.7 | Margin→ 0.1 | MiMo-V2.565.8 |
| Coding | GPT-5.4 miniNot measured | MarginNo overlap | MiMo-V2.556.1 |
| Knowledge | GPT-5.4 mini47.8 | MarginNo overlap | MiMo-V2.5Not measured |
| Math | GPT-5.4 mini21.7 | MarginNo overlap | MiMo-V2.5Not measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
Terminal-Bench 2.0
AgenticA 60%B 65.8%Winner: MiMo-V2.5Δ 5.8Terminal-Bench 2.0: GPT-5.4 mini scored 60%; MiMo-V2.5 scored 65.8%. MiMo-V2.5 wins this benchmark. - Source ↗
MMMU-Pro
MultimodalA 76.6%B 77.9%Winner: MiMo-V2.5Δ 1.3MMMU-Pro: GPT-5.4 mini scored 76.6%; MiMo-V2.5 scored 77.9%. MiMo-V2.5 wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5.4 mini | MiMo-V2.5 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5.4 mini$0.75 input / $4.5 output | MiMo-V2.5Not available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-5.4 mini201 tok/s | MiMo-V2.5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-5.4 mini3.85 s | MiMo-V2.5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-5.4 mini400K | MiMo-V2.51M | MiMo-V2.5 lists the larger context window. |
Benchmark Deep Dive
AgenticMiMo-V2.5 wins13 benchmarks
| Benchmark | GPT-5.4 mini | MiMo-V2.5 | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 60% | 65.8% | MiMo-V2.5 leads |
| OSWorld-VerifiedSource | 72.1% | — | Not comparable |
| MCP AtlasSource | 57.7% | — | Not comparable |
| ToolathlonSource | 42.9% | — | Not comparable |
| τ²-bench resultsSource | 83.3% | — | Not comparable |
| AA Agentic IndexSource | 30.2% | — | Not comparable |
| APEX-Agents-AASource | 28.2% | — | Not comparable |
| GDPval-AASource | 33.6% | — | Not comparable |
| GDPval-AASource | 1171 | — | Not comparable |
| Claw-EvalSource | — | 62.3% | Not comparable |
| MM-ClawBenchSource | — | 23.8% | Not comparable |
| Gert LabsSource | — | 46.89% | Not comparable |
| ResearchClawBenchSource | — | 16.9% | Not comparable |
Coding6 benchmarks
Reasoning2 benchmarks
Knowledge9 benchmarks
| Benchmark | GPT-5.4 mini | MiMo-V2.5 | Result |
|---|---|---|---|
| GPQASource | 88% | — | Not comparable |
| HLESource | 41.5% | — | Not comparable |
| HLE w/o toolsSource | 28.2% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 40.0% | — | Not comparable |
| AA-GPQA DiamondSource | 87.5% | — | Not comparable |
| AA-HLESource | 26.6% | — | Not comparable |
| AA-Omniscience IndexSource | -18.7% | — | Not comparable |
| AA-Omniscience AccuracySource | 37.5% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 89.8% | — | Not comparable |
Math2 benchmarks
MultimodalMiMo-V2.5 wins6 benchmarks
Inst. Following1 benchmarks
| Benchmark | GPT-5.4 mini | MiMo-V2.5 | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.3% | — | Not comparable |
Frequently Asked Questions (3)
Which is better, GPT-5.4 mini or MiMo-V2.5?
MiMo-V2.5 is ahead on BenchLM's BenchAlign leaderboard, 58.62 to 56.77. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 60% and 65.8%.
Which is better for agentic tasks, GPT-5.4 mini or MiMo-V2.5?
MiMo-V2.5 has the edge for agentic tasks in this comparison, averaging 65.8 versus 65.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Which is better for multimodal and grounded tasks, GPT-5.4 mini or MiMo-V2.5?
MiMo-V2.5 has the edge for multimodal and grounded tasks in this comparison, averaging 79 versus 76.6. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
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