Anthropic: Claude Sonnet 5 vs DeepSeek: DeepSeek V4 Flash 0731
Anthropic: Claude Sonnet 5anthropic/claude-sonnet-5VS
DeepSeek: DeepSeek V4 Flash 0731deepseek/deepseek-v4-flash-0731Anthropic: Claude Sonnet 5 wins on more metrics (4 of 7), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Sonnet 5 | DeepSeek: DeepSeek V4 Flash 0731 |
|---|---|---|
| Intelligence Index | 53.4✓ | 49.9 |
| Coding Index | 71.5✓ | 69.1 |
| GPQA Diamond | 91%✓ | 91% |
| Design Arena Elo | 1313✓ | 1246 |
| Speed (tokens/sec) | — | — |
| Latency | — | — |
| Input price /M | $2.00 | $0.140✓ |
| Output price /M | $10.00 | $0.280✓ |
| Context window | 1M | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSON |
Frequently asked
Is Anthropic: Claude Sonnet 5 better than DeepSeek: DeepSeek V4 Flash 0731?
Anthropic: Claude Sonnet 5 wins on more metrics (4 of 7), but the right pick depends on what you optimize for — see the breakdown below.
What are the biggest differences between Anthropic: Claude Sonnet 5 and DeepSeek: DeepSeek V4 Flash 0731?
The table on this page compares Anthropic: Claude Sonnet 5 and DeepSeek: DeepSeek V4 Flash 0731 metric by metric — intelligence benchmarks, coding score, speed, latency, context window and per-token price — with the winner marked on each row. Data refreshes hourly.