Grok 4.5 vs MiniMax-M2.5
Grok 4.5 (xAI) and MiniMax-M2.5 (MiniMax) compared on benchmarks, pricing, context window, and use-case rankings.
- Grok 4.5 leads on overall intelligence (ECI 154 vs 147).
- MiniMax-M2.5 is cheaper on input tokens — $0.15 vs $2.00 per 1M.
- Grok 4.5 has a larger context window (500K vs 205K tokens).
- Grok 4.5 ranks higher for coding (91th vs 43th percentile).
| Attribute | Grok 4.5 | MiniMax-M2.5 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 154 | 147 |
| Coding | 91 | 43 |
| Math | 85 | — |
| Reasoning & Knowledge | 70 | 33 |
| Agentic & Tools | 75 | 45 |
| Specifications | ||
| Developer | xAI | MiniMax |
| Family | Grok | MiniMax |
| Released | Jul 8, 2026 | Feb 12, 2026 |
| Parameters | — | — |
| Availability | API access | Open weights (unrestricted) |
| Context window | 500K | 205K |
| Price — $/M input | $2.00 | $0.15 |
| Price — $/M output | $6.00 | $0.90 |
| Inputs | text, image, file | text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 98% | — |
| APEX | 34% | 6% |
| ARC-AGI | 87% | 64% |
| ARC-AGI-2 | 53% | 5% |
| GPQA Diamond | 93% | 85% |
| Humanity's Last Exam | 40% | 19% |
| SciCode | 54% | 43% |
| SimpleBench | 70% | — |
| SimpleQA Verified | 54% | — |
| WebDev Arena | 1551 | 1382 |
| WeirdML | 46% | — |
| Terminal-Bench | — | 43% |
| τ²-bench | — | 95% |
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
Is Grok 4.5 better than MiniMax-M2.5?
On Epoch AI's Capabilities Index, Grok 4.5 scores higher (154) than MiniMax-M2.5 (147). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is cheaper, Grok 4.5 or MiniMax-M2.5?
MiniMax-M2.5 is cheaper on input tokens at $0.15 per million, versus $2.00 (representative OpenRouter pricing).
Which has a larger context window, Grok 4.5 or MiniMax-M2.5?
Grok 4.5 supports up to 500K tokens, compared with 205K for the other.
Which is better for coding, Grok 4.5 or MiniMax-M2.5?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Grok 4.5 ranks higher — 91th vs 43th 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.