xAI · Active
Grok 4.20 Beta
grok family · launched 2026-07-08
MultimodalReasoningToolsStructuredAITopic score57.8#64 overall
This model always redirects to the latest Grok model from xAI.
Evidence coverage5%1 evaluations · 1 institutions
Context / maximum output500k / 450ktokens
Cache / input / output$0.5 · $2 · $6USD per million tokens
Value / freshness49.1 / 75relative value · release freshness
What this model supports
Strengths by domain
Every result has a source
Raw results and standardized readings are shown together. Missing tests add neither points nor penalties.
Human preference & indices2 results
AA IndexArtificial Analysis64.82 indexReading 57.8
Imported from Artificial Analysis. The published 0–100 score is used directly; it is not z-score normalized.
Configuration: Grok 4.20 BetaOpen evidenceArena TextLMArena1,451.0 EloReading 57.8
Direct LMArena text leaderboard result.
Open evidence