DeepSeek: DeepSeek V4 Flash wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | DeepSeek: DeepSeek V4 Flash | xAI: Grok 4.3 |
|---|---|---|
| Intelligence Index | 40.3✓ | 37.6 |
| Coding Index | 38.7 | 41.0✓ |
| GPQA Diamond | 89% | 90%✓ |
| Design Arena Elo | 1278✓ | 1255 |
| Speed (tokens/sec) | 79 | 130✓ |
| Latency | 586ms✓ | 622ms |
| Input price /M | $0.098✓ | $1.25 |
| Output price /M | $0.196✓ | $2.50 |
| Context window | 1.0M✓ | 1M |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSONVision |