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Grok 4.5 vs Grok 4.6

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Grok 4.5Grok 4.6
AttributeGrok 4.5xAI · 2 in the newsGrok 4.6xAI · 3 in the news
Scores
Intelligence (ECI)154156
Coding7686
Math7687
Reasoning & Knowledge5669
Agentic & Tools7891
Specifications
DeveloperxAIxAI
FamilyGrokGrok
ReleasedJul 8, 2026Aug 12, 2026
Parameters——
AvailabilityAPI accessAPI access
Context window500K500K
Price — $/M input$2.00$2.00
Price — $/M output$6.00$6.00
Inputstext, image, filetext, image, file
Outputstexttext
Benchmarks
AIME 2024/202598%99%
APEX56%65%
ARC-AGI87%88%
ARC-AGI-253%67%
GPQA Diamond93%94%
Humanity's Last Exam43%43%
SciCode55%56%
SimpleBench70%76%
SimpleQA Verified48%49%
WebDev Arena15551618
WeirdML46%67%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.