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Side-by-side comparison of Claude Sonnet 4.5 and GPT-5. Claude Sonnet 4.5 scores 67 on quality benchmarks at $18.00/1M tokens. GPT-5 scores 60 at $11.25/1M tokens.
Claude Sonnet 4.5 has higher benchmark scores. GPT-5 offers competitive value at a lower price point. For budget-conscious users, go with GPT-5. For maximum quality, choose Claude Sonnet 4.5.
| Claude Sonnet 4.5 | GPT-5 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Tier | Premium | Mid-Range |
| Quality Score | 67 | 60 |
| Input Price | $3.00/1M | $1.25/1M |
| Output Price | $15.00/1M | $10.00/1M |
| Speed | 70 tok/s | 100 tok/s |
| Context Window | 1.0M | 400K |
| Max Output | 64K | 32K |
| Reasoning | Yes | Yes |
| Vision | Yes | Yes |
| Task | Claude Sonnet 4.5 | GPT-5 | Savings |
|---|---|---|---|
| Coding | $35.10 | $21.38 | GPT-5 saves $13.73 |
| Writing | $9.36 | $5.70 | GPT-5 saves $3.66 |
| Analysis | $19.50 | $11.88 | GPT-5 saves $7.63 |
| Creative | $7.80 | $4.75 | GPT-5 saves $3.05 |
| General Chat | $2.34 | $1.42 | GPT-5 saves $0.92 |