Grok 4.1 Fast vs Grok 3 Mini
Both have similar output pricing, while Grok 4.1 Fast offers a larger context window. Choose Grok 4.1 Fast or Grok 3 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Grok 4.1 Fast | Grok 3 Mini |
|---|---|---|
| Provider | Ofox | Poe |
| Input / 1M tokens | $0.20 | $0.30 |
| Output / 1M tokens | $0.50 | $0.50 |
| Context window | 2M | 131K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Nov 2025 | Apr 2025 |
| LiveBench score | 60.1 | — |
| LMArena (Chatbot Arena) Elo score | 1408 | 1370 |
| LMArena WebDev Elo score | 1242 | — |
| LMArena Vision Elo score | 1201 | — |
| Aider Polyglot score | — | 49.3 |
| Epoch Capabilities Index score | — | 140 |
FAQ
Is Grok 4.1 Fast or Grok 3 Mini cheaper?
Grok 4.1 Fast and Grok 3 Mini have comparable output pricing.
Which has the larger context window, Grok 4.1 Fast or Grok 3 Mini?
Grok 4.1 Fast 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.