Grok 4.5 vs MiMo-V2.5-Pro
Grok 4.5 (xAI) and MiMo-V2.5-Pro (Xiaomi Corp) compared on benchmarks, pricing, context window, and use-case rankings.
- MiMo-V2.5-Pro is cheaper on input tokens — $0.43 vs $2.00 per 1M.
- MiMo-V2.5-Pro has a larger context window (1.1M vs 500K tokens).
- Grok 4.5 ranks higher for coding (91th vs 73th percentile).
| Attribute | Grok 4.5 | MiMo-V2.5-Pro |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 154 | — |
| Coding | 91 | 73 |
| Math | 85 | — |
| Reasoning & Knowledge | 70 | 67 |
| Agentic & Tools | 75 | 77 |
| Specifications | ||
| Developer | xAI | Xiaomi Corp |
| Family | Grok | — |
| Released | Jul 8, 2026 | Apr 23, 2026 |
| Parameters | — | 1T |
| Availability | API access | Open weights (unrestricted) |
| Context window | 500K | 1.1M |
| Price — $/M input | $2.00 | $0.43 |
| Price — $/M output | $6.00 | $0.87 |
| Inputs | text, image, file | text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 98% | — |
| APEX | 34% | — |
| ARC-AGI | 87% | — |
| ARC-AGI-2 | 53% | — |
| GPQA Diamond | 93% | 87% |
| Humanity's Last Exam | 40% | 34% |
| SciCode | 54% | 50% |
| SimpleBench | 70% | — |
| SimpleQA Verified | 54% | — |
| WebDev Arena | 1551 | 1471 |
| WeirdML | 46% | — |
| τ²-bench | — | 94% |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Which is cheaper, Grok 4.5 or MiMo-V2.5-Pro?
MiMo-V2.5-Pro is cheaper on input tokens at $0.43 per million, versus $2.00 (representative OpenRouter pricing).
Which has a larger context window, Grok 4.5 or MiMo-V2.5-Pro?
MiMo-V2.5-Pro supports up to 1.1M tokens, compared with 500K for the other.
Which is better for coding, Grok 4.5 or MiMo-V2.5-Pro?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Grok 4.5 ranks higher — 91th vs 73th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.