grok-4.1-fast-reasoning
Grok 4.1 Fast is xAI's best tool-calling model with a 2M context window. It reasons and completes agentic tasks accurately and rapidly, excelling at complex real-world use cases such as customer support and finance. To optimize for maximal intelligence use this variant. Otherwise, use the non-reasoning version.
| Provider | Source | Input Price ($/1M) | Output Price ($/1M) | Description | Free |
|---|---|---|---|---|---|
| vercel | vercel | Input: $0.20 | Output: $0.50 | Grok 4.1 Fast is xAI's best tool-calling model with a 2M context window. It reasons and completes agentic tasks accurately and rapidly, excelling at complex real-world use cases such as customer support and finance. To optimize for maximal intelligence use this variant. Otherwise, use the non-reasoning version. | |
| poe | poe | Input: - | Output: - | Grok-4.1-Fast-Reasoning is a high-performance version of xAI’s Grok 4.1 Fast, the company’s best agentic tool‑calling model. It works great in real-world use cases like customer support, deep research, and advanced analytical reasoning. Equipped with 2M‑token context window, this model processes vast information seamlessly, delivering coherent, context‑aware, and deeply reasoned insights at exceptional speed. |