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GLM-5.1 vs Grok 4.5
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| Attribute | GLM-5.1 | Grok 4.5 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 151 | 154 |
| Coding | 58 | 89 |
| Math | 60 | 84 |
| Reasoning & Knowledge | 47 | 68 |
| Agentic & Tools | 94 | 74 |
| Specifications | ||
| Developer | Z.ai (Zhipu AI) | xAI |
| Family | — | Grok |
| Released | Apr 7, 2026 | Jul 8, 2026 |
| Parameters | 754B | — |
| Availability | — | API access |
| Context window | 205K | 500K |
| Price — $/M input | $0.98 | $2.00 |
| Price — $/M output | $4.30 | $6.00 |
| Inputs | text | text, image, file |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 92% | 98% |
| FrontierMath | 33% | — |
| FrontierMath Tier 4 | 13% | — |
| GPQA Diamond | 85% | 93% |
| Humanity's Last Exam | 28% | 40% |
| SciCode | 44% | 54% |
| SimpleBench | 55% | 70% |
| SimpleQA Verified | 37% | 54% |
| SWE-bench Verified | 74% | — |
| WebDev Arena | 1534 | 1551 |
| WeirdML | 57% | 46% |
| τ²-bench | 98% | — |
| APEX | — | 34% |
| ARC-AGI | — | 87% |
| ARC-AGI-2 | — | 53% |
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.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.