Xai
Grok 4 Fast Non-Reasoning
Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning.
xAI model releasesModel Snapshot
TypeLanguage
ReleaseSep 19, 2025
Context2,000,000
Tagstool-use, implicit-caching, vision, file-input
Overall
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Coding
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Blended Price
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Strength Profile
Percentile score by analysis domain.
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Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Max Output256,000
Streaming speed is not measured for this model yet.
Pricing
Blended-
Input-
Output-
Catalog$0.200/M in / $0.500/M out
Metadata
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All Benchmarks
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