Model comparison
MiMo-V2.5 vs o3
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: MiMo-V2.5 #62 (Estimated); o3 #131 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. MiMo-V2.5 and o3 share 1 comparable benchmark result. 0 of 8 categories are comparable. 10 results are unique to MiMo-V2.5; 15 to o3.
Updated July 21, 2026- Shared results
- 1
- MiMo-V2.5 only
- 10
- o3 only
- 15
- Comparable categories
- 0 / 8
Benchmark data for MiMo-V2.5 and o3 is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
MiMo-V2.5 has the larger context window at 1M, compared with 200K for o3.
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 | MiMo-V2.5 | Δ | o3 |
|---|---|---|---|
| Agentic | MiMo-V2.565.8 | MarginNo overlap | o3Not measured |
| Coding | MiMo-V2.556.1 | MarginNo overlap | o3Not measured |
| Math | MiMo-V2.5Not measured | MarginNo overlap | o314.5 |
| Multimodal | MiMo-V2.579.0 | MarginNo overlap | o3Not measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | MiMo-V2.5 | o3 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | MiMo-V2.5Not available | o3$2 input / $8 output | A complete price comparison is not available. |
| Generation speedtokens per second | MiMo-V2.5Not available | o3118 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | MiMo-V2.5Not available | o35.38 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | MiMo-V2.51M | o3200K | MiMo-V2.5 lists the larger context window. |
Benchmark Deep Dive
Agentic6 benchmarks
Coding3 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | MiMo-V2.5 | o3 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | — | 30.4% | Not comparable |
| AA-GPQA DiamondSource | — | 82.7% | Not comparable |
| AA-HLESource | — | 20.0% | Not comparable |
| AA-Omniscience IndexSource | — | -15.3% | Not comparable |
| AA-Omniscience AccuracySource | — | 38.4% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 87.1% | Not comparable |
Math3 benchmarks
Multimodal5 benchmarks
Inst. Following1 benchmarks
| Benchmark | MiMo-V2.5 | o3 | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 71.4% | Not comparable |
Frequently Asked Questions (3)
Can I compare MiMo-V2.5 and o3 on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for MiMo-V2.5 and o3 today?
MiMo-V2.5: Pricing unavailable o3: $2.00 input / $8.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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