Model comparison
Gemma 4 26B A4B vs MiMo-V2.5-Pro
Head-to-head evidence from 17 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemma 4 26B A4B #67 (Supported); MiMo-V2.5-Pro #14 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 26B A4B and MiMo-V2.5-Pro share 17 comparable benchmark results. 1 of 8 categories are comparable. 3 results are unique to Gemma 4 26B A4B; 14 to MiMo-V2.5-Pro.
Updated July 21, 2026- Shared results
- 17
- Gemma 4 26B A4B only
- 3
- MiMo-V2.5-Pro only
- 14
- Comparable categories
- 1 / 8
Pick MiMo-V2.5-Pro if you want the stronger benchmark profile. Gemma 4 26B A4B 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 17 shared benchmark results across 5 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-Pro is clearly ahead on the BenchAlign aggregate, 70.19 to 57.96. 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 knowledge, where it averages 48 against 43.4. The single biggest benchmark swing on the page is HLE, 17.2% to 48%.
MiMo-V2.5-Pro gives you the larger context window at 1M, compared with 256K for Gemma 4 26B A4B.
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 | Gemma 4 26B A4B | Δ | MiMo-V2.5-Pro |
|---|---|---|---|
| Knowledge | Gemma 4 26B A4B43.4 | Margin→ 4.6 | MiMo-V2.5-Pro48.0 |
| Agentic | Gemma 4 26B A4BNot measured | MarginNo overlap | MiMo-V2.5-Pro68.4 |
| Coding | Gemma 4 26B A4BNot measured | MarginNo overlap | MiMo-V2.5-Pro57.2 |
| Multimodal | Gemma 4 26B A4B73.8 | MarginNo overlap | MiMo-V2.5-ProNot measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
HLE
KnowledgeA 17.2%B 48%Winner: MiMo-V2.5-ProΔ 30.8HLE: Gemma 4 26B A4B scored 17.2%; MiMo-V2.5-Pro scored 48%. MiMo-V2.5-Pro wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 26B A4B | MiMo-V2.5-Pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 26B A4B$0 input / $0 output | MiMo-V2.5-ProNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Gemma 4 26B A4BNot available | MiMo-V2.5-ProNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 26B A4BNot available | MiMo-V2.5-ProNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 26B A4B256K | MiMo-V2.5-Pro1M | MiMo-V2.5-Pro lists the larger context window. |
Benchmark Deep Dive
Agentic14 benchmarks
| Benchmark | Gemma 4 26B A4B | MiMo-V2.5-Pro | Result |
|---|---|---|---|
| AA Agentic IndexSource | 11.0% | 29.1% | MiMo-V2.5-Pro leads |
| τ²-bench resultsSource | 43.6% | 94.2% | MiMo-V2.5-Pro leads |
| GDPval-AASource | 13.1% | 38.3% | MiMo-V2.5-Pro leads |
| GDPval-AASource | 761 | 1265 | MiMo-V2.5-Pro leads |
| Claw-EvalSource | — | 63.8% | Not comparable |
| τ³-bench resultsSource | — | 72.9% | Not comparable |
| Terminal-Bench 2.0Source | — | 68.4% | Not comparable |
| APEX-Agents-AASource | — | 2.4% | Not comparable |
| Gert LabsSource | — | 62.70% | 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 |
Coding4 benchmarks
Reasoning2 benchmarks
KnowledgeMiMo-V2.5-Pro wins10 benchmarks
| Benchmark | Gemma 4 26B A4B | MiMo-V2.5-Pro | Result |
|---|---|---|---|
| MMLU-ProSource | 82.6% | — | Not comparable |
| HLESource | 17.2% | 48% | MiMo-V2.5-Pro leads |
| HLE w/o toolsSource | 8.7% | 34% | MiMo-V2.5-Pro leads |
| Artificial Analysis Intelligence IndexSource | 25.7% | 42.2% | MiMo-V2.5-Pro leads |
| AA-GPQA DiamondSource | 79.2% | 86.6% | MiMo-V2.5-Pro leads |
| AA-HLESource | 18.3% | 33.8% | MiMo-V2.5-Pro leads |
| AA-Omniscience IndexSource | -48.1% | 3.6% | MiMo-V2.5-Pro leads |
| AA-Omniscience AccuracySource | 18.2% | 22.6% | MiMo-V2.5-Pro leads |
| AA-Omniscience Hallucination RateSource | 80.9% | 24.5% | MiMo-V2.5-Pro leads |
| AA Openness IndexSource | — | 38.9% | Not comparable |
Multimodal3 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 26B A4B | MiMo-V2.5-Pro | Result |
|---|---|---|---|
| AA-IFBenchSource | 72.4% | 79.9% | MiMo-V2.5-Pro leads |
Frequently Asked Questions (2)
Which is better, Gemma 4 26B A4B or MiMo-V2.5-Pro?
MiMo-V2.5-Pro is ahead on BenchLM's BenchAlign leaderboard, 70.19 to 57.96. The biggest single separator in this matchup is HLE, where the scores are 17.2% and 48%.
Which is better for knowledge tasks, Gemma 4 26B A4B or MiMo-V2.5-Pro?
MiMo-V2.5-Pro has the edge for knowledge tasks in this comparison, averaging 48 versus 43.4. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.
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