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A.X K2 vs Grok 4.6

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A.X K2Grok 4.6
AttributeA.X K2SK Telecom · 1 in the newsGrok 4.6xAI · 3 in the news
Scores
Intelligence (ECI)156
Coding2890
Math91
Reasoning & Knowledge4673
Agentic & Tools95
Specifications
DeveloperSK TelecomxAI
FamilyGrok
ReleasedJul 29, 2026Aug 12, 2026
Parameters688B
AvailabilityOpen weights (unrestricted)API access
Context window500K
Price — $/M input$2.00
Price — $/M output$6.00
Inputstext, image, file
Outputstext
Benchmarks
GPQA Diamond86%94%
Humanity's Last Exam30%43%
SciCode41%56%
AIME 2024/202599%
APEX65%
ARC-AGI88%
ARC-AGI-267%
SimpleBench76%
SimpleQA Verified49%
WebDev Arena1618
WeirdML67%

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.