Grok 4.1 Fast
by Vertex · family grok · listed Nov 2025TV
Fast Grok model for responsive chat, tool-assisted work, and low-latency responses
Current rates USD per 1M tokens
Input$0.20
Output$0.50
Cache read$0.05
Cache write—
Against the market
Input price vs. maker flagships ($/1M tokens)Output price vs. maker flagships ($/1M tokens)On the record
- Model id
xai/grok-4.1-fast-non-reasoning- Context window
- 128K tokens
- Max output
- 30K tokens
- Input modalities
- text, image
- Output modalities
- text
- Reasoning
- no
- Tool calls
- yes
- Open weights
- no
- Knowledge cutoff
- —
- Released
- 2025-11-19
- Last updated
- 2025-11-19
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