Grok 4.1 Fast vs GPT-5.2-Pro
Grok 4.1 Fast is cheaper on output tokens, while Grok 4.1 Fast offers a larger context window. Choose Grok 4.1 Fast or GPT-5.2-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Grok 4.1 Fast | GPT-5.2-Pro |
|---|---|---|
| Provider | ZenMux | ZenMux |
| Input / 1M tokens | $0.20 | $21.00 |
| Output / 1M tokens | $0.50 | $168.00 |
| Context window | 2M | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Nov 2025 | Dec 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.