Grok 4.1 Fast
SpaceXAI · 2 thinking configurations
Intelligence11.3
Input / 1M$0.20
Output / 1M$0.50
Context2M
Tariff: Perplexity Agent · Source: models-dev · USD per million tokens
Thinking configuration
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Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost2 measured configurations · 0 without both values
Selected: thinking none · Click a point to switch configuration
Fast Grok model for responsive chat, reasoning, and tool-assisted work
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
11.3 pointsGPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
63.7 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
5.1 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
63.7 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
36.5 %MMMU-ProMultimodal understanding of academic problems that include images.
48.4 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
17.2 %Specifications from the catalog
Inputtext, image
Outputtext
Tool callingYes
Structured outputYes
SpeedNot available
First tokenNot available
Maximum output30K
Catalog listing date2025-11-19