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Models/Grok 4.3 Beta
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xAI: Grok 4.3 Beta

grok-4-3-beta

Grok 4.3 Beta is a Grok-family AI model, from xAI, released Apr 17, 2026.

Context
Input
/ 1M
Output
/ 1M
Released
Apr 17, 2026
Modalities

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Grok 4.3 Beta lands among all models tracked on Model Beat.

41.0
Intelligence Index
Epoch AI
41st percentile of tracked models
30.0
Coding Index
Epoch AI
30th percentile of tracked models

Reasoning

1 evals
WeirdML49.9%

Novel ML problem-solving

Coding

1 evals
WebDev Arena1377

Human-rated web development

Model & benchmark data from Epoch AI (CC BY); pricing, specs & descriptions from OpenRouter.