HASTATAgent stack guide grok
grok-4-1-fast-reasoning
Fast Grok model for responsive chat, reasoning, and tool-assisted work
Fresh · fetched 2026-08-17T02:11:57.739Z · Models.dev(opens in a new tab)
Minimum context2M
Output2M
Providers6
CapabilitiesTool calling, Reasoning, Image input
Provider offers
| Providers | Input / 1M | Output / 1M | Cache read / 1M | Context / output | Updated |
|---|---|---|---|---|---|
 Jiekou.AIgrok-4-1-fast-reasoning | $0.18 | $0.45 | Unavailable | 2M | 2026-01 |
 Heliconegrok-4-1-fast-reasoning | $0.20 | $0.50 | $0.050 | 2M | 2025-11-17 |
 302.AIgrok-4-1-fast-reasoning | $0.20 | $0.50 | Unavailable | 2M | 2025-11-20 |
 Azuregrok-4-1-fast-reasoning | $0.20 | $0.50 | $0.050 | 128K | 2025-06-27 |
 FrogBotgrok-4-1-fast-reasoning | $0.20 | $0.50 | $0.050 | 2M | 2025-11-25 |
 LLM Gatewaygrok-4-1-fast-reasoning | $0.20 | $0.50 | $0.050 | 2M | 2025-11-19 |
Lowest reported provider price in USD per 1M tokens; unavailable is not free. Provider documentation remains authoritative. Catalogue presence is not an uptime, security, or quality endorsement.
Source metadata and limitations
Capabilities are source-reported. Tool calling does not prove quality in a particular harness. Prices and limits can change.
Modalities: text, image → text