Grok 4.3 is a leading model in intelligence, offering high performance and notable speed, though it tends to be very verbose. The model supports text and image input, generates text output, and features a 1 million token context window. Grok 4.3 scores 53 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models.
Author
xAIRelease Date
2026-04-30
Knowledge Cutoff
2025-12
License
Proprietary
I/O Format
Context Length
1M
API I/O (1M)
$1.25 / $2.5
How to Use
—
Output Speed
205 tok/sArena Overall
1456Intelligence Index
53.2Coding Index
41.0Math Index
—LiveBench
—ForecastBench
—GPQA Diamond
90.1%HLE
35.0%MMLU-Pro
—AIME 2025
—MATH-500
—LB Reasoning
—LB Math
—LB Data Analysis
—LiveCodeBench
—LB Coding
—LB Agentic
—TAU2
97.7%TerminalBench
37.9%SciCode
47.3%IFBench
81.3%AA-LCR
0.6Hallucination (HHEM)
—Factual Consistency (HHEM)
—LB Language
—LB Instruction Following
—1 / 3
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Grok 4.3 is a leading model in intelligence, offering high performance and notable speed, though it tends to be very verbose. The model supports text and image input, generates text output, and features a 1 million token context window. Grok 4.3 scores 53 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models.
Author
xAIRelease Date
2026-04-30
Knowledge Cutoff
2025-12
License
Proprietary
I/O Format
Context Length
1M
API I/O (1M)
$1.25 / $2.5
How to Use
—
Output Speed
205 tok/sArena Overall
1456Intelligence Index
53.2Coding Index
41.0Math Index
—LiveBench
—ForecastBench
—GPQA Diamond
90.1%HLE
35.0%MMLU-Pro
—AIME 2025
—MATH-500
—LB Reasoning
—LB Math
—LB Data Analysis
—LiveCodeBench
—LB Coding
—LB Agentic
—TAU2
97.7%TerminalBench
37.9%SciCode
47.3%IFBench
81.3%AA-LCR
0.6Hallucination (HHEM)
—Factual Consistency (HHEM)
—LB Language
—LB Instruction Following
—