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Side-by-side comparison of Claude Sonnet 4.5 and Grok 4. Claude Sonnet 4.5 scores 67 on quality benchmarks at $18.00/1M tokens. Grok 4 scores 68 at $18.00/1M tokens.
Claude Sonnet 4.5 is the more affordable option. Grok 4 leads in quality benchmarks at a lower price point. For budget-conscious users, go with Grok 4. For maximum quality, choose Grok 4.
| Claude Sonnet 4.5 | Grok 4 | |
|---|---|---|
| Provider | Anthropic | xAI |
| Tier | Premium | Premium |
| Quality Score | 67 | 68 |
| Input Price | $3.00/1M | $3.00/1M |
| Output Price | $15.00/1M | $15.00/1M |
| Speed | 70 tok/s | 60 tok/s |
| Context Window | 1.0M | 2.0M |
| Max Output | 64K | 128K |
| Reasoning | Yes | Yes |
| Vision | Yes | Yes |
| Task | Claude Sonnet 4.5 | Grok 4 | Savings |
|---|---|---|---|
| Coding | $35.10 | $35.10 | ~Same |
| Writing | $9.36 | $9.36 | ~Same |
| Analysis | $19.50 | $19.50 | ~Same |
| Research | $15.60 | $15.60 | ~Same |
| Math & Reasoning | $11.70 | $11.70 | ~Same |
| Creative | $7.80 | $7.80 | ~Same |