GPT-5.3-Codex vs Grok 4.3
| GPT-5.3-Codex | Grok 4.3 | |
|---|---|---|
| Coding index | 60.0 | 37.4 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $14.00 | $2.50 |
| Cost per solved task | $0.59 | $0.31 |
| Context window | 400K | 1M |
| GPT-5.3-Codex | Grok 4.3 | |
|---|---|---|
| Coding index | 60.0 | 37.4 |
| Benchmarks behind it | Verified, 3 benchmarks | Verified, 3 benchmarks |
| Output $/Mtok | $14.00 | $2.50 |
| Cost per solved task | $0.59 | $0.31 |
| Context window | 400K | 1M |