OpenAI: GPT-5.3-Codex vs Tencent: Hy3
OpenAI: GPT-5.3-Codex wins on more metrics (4 of 7), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-5.3-Codex | Tencent: Hy3 |
|---|---|---|
| Intelligence Index | 44.3✓ | 41.2 |
| Coding Index | — | 58.8✓ |
| GPQA Diamond | 92%✓ | 90% |
| Design Arena Elo | 1201✓ | 1198 |
| Speed (tokens/sec) | — | — |
| Latency | — | — |
| Input price /M | $1.75 | $0.140✓ |
| Output price /M | $14.00 | $0.580✓ |
| Context window | 400K✓ | 262K |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSON |