Grok 4.1 Fast Non Reasoning vs Grok 4
Grok 4.1 Fast Non Reasoning is cheaper on output tokens, while Grok 4.1 Fast Non Reasoning offers a larger context window. Choose Grok 4.1 Fast Non Reasoning or Grok 4 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Grok 4.1 Fast Non Reasoning | Grok 4 |
|---|---|---|
| Provider | ZenMux | ZenMux |
| Input / 1M tokens | $0.20 | $3.00 |
| Output / 1M tokens | $0.50 | $15.00 |
| Context window | 2M | 256K |
| Parameters | — | 3T |
| Open weights | No | No |
| Released | Nov 2025 | Jul 2025 |
FAQ
Is Grok 4.1 Fast Non Reasoning or Grok 4 cheaper?
Grok 4.1 Fast Non Reasoning is cheaper on output tokens ($0.50 vs $15.00 per 1M).
Which has the larger context window, Grok 4.1 Fast Non Reasoning or Grok 4?
Grok 4.1 Fast Non Reasoning has the larger context window (2M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.