Claude Haiku 4.5 vs GPT-5.3-Codex
| Claude Haiku 4.5 | GPT-5.3-Codex | |
|---|---|---|
| Coding index | 35.6 | 60.0 |
| Benchmarks behind it | Verified, 4 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $5.00 | $14.00 |
| Cost per solved task | $0.56 | $0.59 |
| Context window | 200K | 400K |
| Claude Haiku 4.5 | GPT-5.3-Codex | |
|---|---|---|
| Coding index | 35.6 | 60.0 |
| Benchmarks behind it | Verified, 4 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $5.00 | $14.00 |
| Cost per solved task | $0.56 | $0.59 |
| Context window | 200K | 400K |