BrianOnAIxAI: Grok 4.1 Fast
byxAI
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 the `reasoning` `enabled` parameter in the API. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#controlling-reasoning-tokens)
Pricing
Input
$0.20 / 1M tokens
Output
$0.50 / 1M tokens
Specifications
Context Window2.0M tokens
Max Output30K tokens
Modalitymultimodal
Input Typestext, image
Output Typestext
Strategic Analysis 🔒
Unlock vCAIO insights to make better model decisions:
- Governance Risk Rating (Low / Medium / High)
- Quality Tier Classification
- Best Use Cases & Tags
- Strategic Verdict from vCAIO
- AI-Verified Fit Scoring
Not sure if this model fits your use case?
Describe your task and get AI-verified recommendations in seconds.
Other xAI Models
Pricing last updated: Invalid Date