Grok 4 FastArchive and alternatives
Grok 4 Fast is no longer available on OpenRouter. Explore a current alternative below.
Specifications
Grok 4 Fast at a glance
Context
2M tokens
Max output
30K tokens
Input price
$0.20 / 1M
Output price
$0.50 / 1M
Capabilities
What it is good at
Good for
Compare
Compare Grok 4 Fast
Grok 4 Fast vs 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.
Open comparisonGrok 4 Fast vs Grok 3 Beta
Grok 3 is the latest model from xAI. It's their flagship model that excels at enterprise use cases like data extraction, coding, and text summarization.
Open comparisonGrok 4 Fast vs Grok 3 Mini Beta
Grok 3 Mini is a lightweight, smaller thinking model. Unlike traditional models that generate answers immediately, Grok 3 Mini thinks before responding.
Open comparisonFAQ
Questions about Grok 4 Fast
Clear answers based on the model catalog and Krater access.