Grok 4 Fast Non-Reasoning
JSON →A fast inference variant of Grok 4 without reasoning capabilities for speed.
Specs
context window 2.0M tokens
max output 2.0M tokens
input price $0.2 / 1M tokens
output price $0.5 / 1M tokens
Capabilities
streamingcode-generationfunction-callingtool-useprompt-caching
API
full doc /v1/models/grok-4-fast-non-reasoning