DeepSeek: DeepSeek V4 Flash wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Opus 4.8 | DeepSeek: DeepSeek V4 Flash |
|---|---|---|
| Intelligence Index | 55.7✓ | 40.3 |
| Coding Index | 56.7✓ | 38.7 |
| GPQA Diamond | 92%✓ | 89% |
| Design Arena Elo | 1373✓ | 1278 |
| Speed (tokens/sec) | 58 | 77✓ |
| Latency | 1.8s | 529ms✓ |
| Input price /M | $5.00 | $0.098✓ |
| Output price /M | $25.00 | $0.196✓ |
| Context window | 1M | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSON |