GPT-5.3-Codex vs Grok 4.20
| GPT-5.3-Codex | Grok 4.20 | |
|---|---|---|
| Coding index | 60.0 | 33.3 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $14.00 | $2.50 |
| Cost per solved task | $0.59 | $0.72 |
| Context window | 400K | 2M |
| GPT-5.3-Codex | Grok 4.20 | |
|---|---|---|
| Coding index | 60.0 | 33.3 |
| Benchmarks behind it | Verified, 3 benchmarks | Partial, 2 benchmarks |
| Output $/Mtok | $14.00 | $2.50 |
| Cost per solved task | $0.59 | $0.72 |
| Context window | 400K | 2M |