Side-by-side comparison of AI model specs, benchmarks, and pricing.
| Spec | Grok 4 xAI | Gemini 3.1 Pro Google |
|---|---|---|
| Tier | frontier | frontier |
| Release Date | 2025-07-09 | 2026-02-19 |
| Context Window | 256K | 1049K |
| Max Output | 8K | 66K |
| Input Price (/1M) | $3 | $2 |
| Output Price (/1M) | $15 | $12 |
| Arena Elo | 1,410 | 1,500 |
| MMLU | 87.5% | 92.6% |
| GPQA | 87.5% | 94.3% |
| MATH | 91.7% | 96.8% |
| HumanEval | 90% | 94.6% |
| SWE-bench | 48% | 80.6% |
| AIME | 72% | 91.2% |
| SimpleQA | 34.2% | 79.6% |
| Capabilities | vision, tool-use, code, reasoning | vision, tool-use, code, reasoning, agentic, audio |