GPT-5.3 Codex vs Grok 4.6
Grok 4.6 is cheaper on output tokens, while Grok 4.6 offers a larger context window. Choose GPT-5.3 Codex or Grok 4.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.3 Codex | Grok 4.6 |
|---|---|---|
| Provider | Opper | Opper |
| Input / 1M tokens | $1.75 | $2.00 |
| Output / 1M tokens | $14.00 | $6.00 |
| Context window | 400K | 500K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Feb 2026 | Aug 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.