xAI: Grok 4.1 Fast: Grok 4.1 Fast is xAI's best agentic tool calling model that shines in real-world use cases like customer support and deep research. 2M context window. Reasoning can be enabled/disabled using...
Pillar = mean of 2 scaled values = 25.0.
Awaiting first reading — these signals apply to this agent and will be ingested on the next tier tick: Reddit mentions (7d), Bluesky mentions (7d), OpenRouter tokens (30d)
Not applicable — this agent doesn't have the prerequisite (no GitHub repo, no HF mirror, etc.) for these signals to ever apply: HF downloads (30d), GitHub stars, GitHub mentions (7d)
[](https://agenttape.com/agents/xai-grok-4-1-fast)
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| Benchmark | Score | Max | Captured |
|---|---|---|---|
| lmarena | 1435.79 | — | 2h ago |