Grok 4.3 Beta
RumoredReasoning modelGrok 4.3 Beta (Early Access)
Grok 4.3 Beta (Early Access) is an AI model published by xAI, released on 2026-05-17, for Reasoning model, with 500B parameters, and 2000K context length, under the 不开源 license, with a 66.74 score on LiveBench.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Model basics
Open source & experience
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API details
Benchmark Results
Grok 4.3 Beta currently shows benchmark results led by LiveBench (50 / 115, score 66.74). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.
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Model Overview
Grok 4.3 Beta (Early Access) is an AI model published by xAI, released on 2026-05-17, for Reasoning model, with 500B parameters, and 2000K context length, under the 不开源 license, with a 66.74 score on LiveBench.
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