DeepSeek-V3.1 vs Grok 4.5
DeepSeek-V3.1 (DeepSeek) and Grok 4.5 (xAI) compared on benchmarks, pricing, context window, and use-case rankings.
- Grok 4.5 leads on overall intelligence (ECI 154 vs 139).
- Grok 4.5 ranks higher for coding (91th vs 15th percentile).
| Attribute | DeepSeek-V3.1 | Grok 4.5 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 139 | 154 |
| Coding | 15 | 91 |
| Math | 3 | 85 |
| Reasoning & Knowledge | 17 | 70 |
| Agentic & Tools | 10 | 75 |
| Specifications | ||
| Developer | DeepSeek | xAI |
| Family | DeepSeek | Grok |
| Released | Aug 21, 2025 | Jul 8, 2026 |
| Parameters | — | — |
| Availability | Open weights (unrestricted) | API access |
| Context window | — | 500K |
| Price — $/M input | — | $2.00 |
| Price — $/M output | — | $6.00 |
| Inputs | — | text, image, file |
| Outputs | — | text |
| Benchmarks | ||
| AIME 2024/2025 | 50% | 98% |
| GPQA Diamond | 74% | 93% |
| Humanity's Last Exam | 6% | 40% |
| LiveCodeBench | 58% | — |
| MMLU-Pro | 83% | — |
| SciCode | 37% | 54% |
| SimpleBench | 40% | 70% |
| WeirdML | 38% | 46% |
| τ²-bench | 35% | — |
| APEX | — | 34% |
| ARC-AGI | — | 87% |
| ARC-AGI-2 | — | 53% |
| SimpleQA Verified | — | 54% |
| WebDev Arena | — | 1551 |
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 DeepSeek-V3.1 better than Grok 4.5?
On Epoch AI's Capabilities Index, Grok 4.5 scores higher (154) than DeepSeek-V3.1 (139). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is better for coding, DeepSeek-V3.1 or Grok 4.5?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Grok 4.5 ranks higher — 91th vs 15th 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.