grok-4-1-fast-reasoning vs gemini-3.1-flash-image-preview
grok-4-1-fast-reasoning is cheaper on output tokens, while grok-4-1-fast-reasoning offers a larger context window. Choose grok-4-1-fast-reasoning or gemini-3.1-flash-image-preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | grok-4-1-fast-reasoning | gemini-3.1-flash-image-preview |
|---|---|---|
| Provider | 302.AI | 302.AI |
| Input / 1M tokens | $0.20 | $0.50 |
| Output / 1M tokens | $0.50 | $60.00 |
| Context window | 2M | 131K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Nov 2025 | Feb 2026 |
FAQ
Is grok-4-1-fast-reasoning or gemini-3.1-flash-image-preview cheaper?
grok-4-1-fast-reasoning is cheaper on output tokens ($0.50 vs $60.00 per 1M).
Which has the larger context window, grok-4-1-fast-reasoning or gemini-3.1-flash-image-preview?
grok-4-1-fast-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.