GPT-5.1 vs Grok 4
GPT-5.1 is cheaper on output tokens, while GPT-5.1 offers a larger context window. Choose GPT-5.1 or Grok 4 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.1 | Grok 4 |
|---|---|---|
| Provider | Requesty | Requesty |
| Input / 1M tokens | $1.25 | $3.00 |
| Output / 1M tokens | $10.00 | $15.00 |
| Context window | 400K | 256K |
| Parameters | — | 3T |
| Open weights | No | No |
| Released | Nov 2025 | Sep 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.