Grok 4.1 Fast
Grok 4.1 Fast is xAI's tool-calling model, described by xAI as its best tool-calling model with a 2M context window, which reasons and completes agentic tasks accurately and rapidly.
text + image + file → text · made by xAI
Sold by 5 ways
| Seller | Lane | Rate |
|---|---|---|
| Google Vertex AI cloud | standard | $0.2per Mtok in$0.5per Mtok out$0.05per Mtok cachedmodels.dev · read 2026-10-31 |
| Microsoft Azure AI 0 ways | $0.2per Mtok in$0.5per Mtok out$0.05per Mtok cached | |
| Microsoft Azure AI cloudnot on the seller's list today | standard | $0.2per Mtok in$0.5per Mtok out$0.05per Mtok cachedmodels.dev · read 2026-08-30 |
| Oracle Cloud Infrastructure cloud | standard | $5per Mtok in$25per Mtok outraw.githubusercontent.com · read 2026-10-31 |
| RedPill aggregator | standard | $0.2per Mtok in$0.5per Mtok outapi.redpill.ai · read 2026-09-20 |
| Vercel AI Gateway 0 ways | $0.2per Mtok in$0.5per Mtok out | |
| Vercel AI Gateway aggregatornot on the seller's list today | standard | $0.2per Mtok in$0.5per Mtok outvercel.com · read 2026-08-25 |
Measured 1 standing
| Place | Board | Metric | Score |
|---|---|---|---|
| 21stof 34 | LMArena · Search | Score (Elo) | 1171 |
About
Grok 4.1 Fast — a text model from xAI, sold by 3 companies from $0.2 in and $0.5 out per million tokens, placed 21st of 34 on LMArena · Search.
It takes text, images and files and returns text, with a context window of 2,000,000 tokens. It was published in June 2025, trained on material up to 2025. Its sellers say it can reason step by step and call a tool. The catalogue files it under search and sandbox. Three companies sell it. The cheapest is $0.2 in and $0.5 out per million tokens at Google Vertex AI. It stands 21st of 34 on LMArena · Search.
Every current figure
- Maker
- xAI
- Register
- model
- Takes
- text + image + file
- Returns
- text
- Context
- 2,000,000 tokens
- Published
- June 2025
- Knowledge to
- 2025
- Licence
- not read
- Sellers
- 3
- Maker's own price
- not read
- Price
- $0.2 in and $0.5 out per million tokens — Google Vertex AI
- Boards
- 1
- Best place
- 21st of 34 — LMArena · Search
Known as 2 names
grok-4-1-fast-searchx-ai/grok-4.1-fast