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Grok 4.5Currently listed through these providers:
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Model details
Grok 4.1 Fast Reasoning
The model overview is being prepared.
Vercel AI Gatewayspacexai/grok-4.1-fast-reasoninggrok
Quick Info
Powered by- Provider
- Vercel AI Gateway
- Model key
- spacexai/grok-4.1-fast-reasoning
- Release date
- Nov 19, 2025
- Last updated
- Nov 19, 2025
- Input modalities
- Output modalities
- Capabilities
Cost
- Input token cost
- $0.20
- Output token cost
- $0.50
Limits
- Output tokens
- 1,000,000 tokens
- Context window
- 1,000,000 tokens