Details
Previous-generation xAI flagship — took the top spot on independent agentic tool-use benchmarks, with a 500K token context window that trades size for reasoning strength versus Grok 4.3's 1M.
Context window
500K tokens
Max output
32.8K tokens
Provider
xAI
Pricing
Premium
PDF support
No
Zero Data Retention
Not yet
Added
July 8, 2026
Replaced
August 15, 2026