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Side-by-side comparison of Claude Opus 4.5 and Grok 4. Claude Opus 4.5 scores 72 on quality benchmarks at $90.00/1M tokens. Grok 4 scores 68 at $18.00/1M tokens.
Claude Opus 4.5 has higher benchmark scores. Grok 4 offers competitive value at a lower price point. For budget-conscious users, go with Grok 4. For maximum quality, choose Claude Opus 4.5.
| Claude Opus 4.5 | Grok 4 | |
|---|---|---|
| Provider | Anthropic | xAI |
| Tier | Frontier | Premium |
| Quality Score | 72 | 68 |
| Input Price | $15.00/1M | $3.00/1M |
| Output Price | $75.00/1M | $15.00/1M |
| Speed | 40 tok/s | 60 tok/s |
| Context Window | 200K | 2.0M |
| Max Output | 32K | 128K |
| Reasoning | Yes | Yes |
| Vision | Yes | Yes |
| Task | Claude Opus 4.5 | Grok 4 | Savings |
|---|---|---|---|
| Coding | $175.50 | $35.10 | Grok 4 saves $140.40 |
| Writing | $46.80 | $9.36 | Grok 4 saves $37.44 |
| Analysis | $97.50 | $19.50 | Grok 4 saves $78.00 |
| Research | $78.00 | $15.60 | Grok 4 saves $62.40 |
| Math & Reasoning | $58.50 | $11.70 | Grok 4 saves $46.80 |
| Creative | $39.00 | $7.80 | Grok 4 saves $31.20 |