Grok 4.1 Fast
xAI's fast agentic tool-calling model with a 2M context window; non-reasoning variant for low-latency responses
xai/grok-4.1-fast- Lab
- xAI
- Family
- grok
- Providers
- 8
- Context
- 2,000,000
- Output limit
- 30,000
- Knowledge
- -
- Release
- 2025-11-19
- Updated
- 2025-11-19
- Weights
- Closed
- Input
- Output types
- Capabilities
- tools, temperature
Providers
8| FrogBot | xAI | grok-4-1-fast-non-reasoning | 2,000,000 | 128,000 | $0.20 / $0.50 | No | Yes | - | Yes |
|---|---|---|---|---|---|---|---|---|---|
| Helicone | xAI | grok-4-1-fast-non-reasoning | 2,000,000 | 30,000 | $0.20 / $0.50 | No | Yes | - | Yes |
| Jiekou.AI | xAI | grok-4-1-fast-non-reasoning | 2,000,000 | 30,000 | $0.19 / $0.475 | No | Yes | Yes | Yes |
| Ofox | xAI | x-ai/grok-4.1-fast | 2,000,000 | 30,000 | $0.20 / $0.50 | No | Yes | Yes | Yes |
| Perplexity Agent | xAI | xai/grok-4-1-fast-non-reasoning | 2,000,000 | 30,000 | $0.20 / $0.50 | No | Yes | - | Yes |
| Poe | xAI | xai/grok-4.1-fast-non-reasoning | 2,000,000 | 30,000 | - | No | Yes | - | No |
| Qiniu | xAI | x-ai/grok-4.1-fast-non-reasoning | 2,000,000 | 2,000,000 | - | No | Yes | No | Yes |
| Vertex | xAI | xai/grok-4.1-fast-non-reasoning | 128,000 | 30,000 | $0.20 / $0.50 | No | Yes | Yes | Yes |
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