Fast Grok model for responsive chat, reasoning, and tool-assisted work
Grok 4.1 Fast (Non-Reasoning) by xai is offered by 9 providers on this page. Public prices are shown for 8 of them. Its reference price is $0.20 per 1M input tokens and $0.50 per 1M output tokens.
The context window is 2,000,000 tokens at the reference host, but hosts report different limits, from 128,000 to 2,000,000, so the usable window depends on the provider you pick. It supports tool use. Accepted input modalities are Text, Image, and PDF. Its training knowledge cuts off at 2025-07.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Jiekou.AI | Gateway | $0.18 | $0.45 | — | — | 2,000,000 | 2,000,000 | |
| Perplexity Agent | Gateway | $0.20 | $0.50 | $0.05 | — | 2,000,000 | 30,000 | |
| Abacus | Gateway | $0.20 | $0.50 | — | — | 2,000,000 | 16,384 | |
| Azure | Cloud | $0.20 | $0.50 | $0.05 | — | 128,000 ⚠ | 8,192 | |
| FrogBot | Gateway | $0.20 | $0.50 | $0.05 | — | 2,000,000 | 128,000 | |
| Vercel AI Gateway spacexai/grok-4.1-fast-non-reasoning | Cloud | $0.20 | $0.50 | $0.05 | — | 1,000,000 ⚠ | 1,000,000 | |
| DevPass (LLM Gateway) | Gateway | $0.20 | $0.50 | $0.05 | — | 2,000,000 | 2,000,000 | |
| LLM Gateway | Gateway | $0.20 | $0.50 | — | — | 2,000,000 | 30,000 | |
| Poe xai/grok-4.1-fast-non-reasoning | Gateway | — | — | — | — | 2,000,000 | 30,000 | hostTable.undisclosed |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.