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Side-by-side comparison for AI agent model selection.
Side-by-side comparison of Claude Sonnet 4.5 and DeepSeek R1 (Free). Claude Sonnet 4.5 scores 67 on quality benchmarks at $18.00/1M tokens. DeepSeek R1 (Free) scores 50 at Free/1M tokens.
Claude Sonnet 4.5 has higher benchmark scores. DeepSeek R1 (Free) offers competitive value at a lower price point. For budget-conscious users, go with DeepSeek R1 (Free). For maximum quality, choose Claude Sonnet 4.5.
| Claude Sonnet 4.5 | DeepSeek R1 (Free) | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Tier | Premium | Free |
| Quality Score | 67 | 50 |
| Input Price | $3.00/1M | Free/1M |
| Output Price | $15.00/1M | Free/1M |
| Speed | 70 tok/s | 40 tok/s |
| Context Window | 1.0M | 64K |
| Max Output | 64K | 8K |
| Reasoning | Yes | Yes |
| Vision | Yes | No |
| Task | Claude Sonnet 4.5 | DeepSeek R1 (Free) | Savings |
|---|---|---|---|
| Coding | $35.10 | Free | DeepSeek R1 (Free) saves $35.10 |
| Writing | $9.36 | Free | DeepSeek R1 (Free) saves $9.36 |
| Analysis | $19.50 | Free | DeepSeek R1 (Free) saves $19.50 |
| Math & Reasoning | $11.70 | Free | DeepSeek R1 (Free) saves $11.70 |
| Creative | $7.80 | Free | DeepSeek R1 (Free) saves $7.80 |