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xAI

Grok 4.6

Flagship for code and everything else

Official specsAugust 12, 2026 (post-training refresh of Grok 4.5)
Main purpose
Chat, coding, and agentic work with configurable reasoning
Context window
500K tokens
API pricing
$2 input / $6 output per 1M tokens
Access
grok.com, xAI API, Cursor, OpenRouter
Knowledge cutoff
February 1, 2026

Capabilities

Key features

  • 500K-token context window
  • Configurable reasoning
  • Agentic tool calling
  • Optional Web Search and X Search

Notes

  • xAI documents it as the flagship for code and chat, with agentic tool calling and configurable reasoning.
  • Realtime events require enabling server-side Web Search or X Search; the model has no knowledge of current events beyond its cutoff.

Limitations

  • No access to current events unless search tools are enabled.
  • Image and video generation are separate Imagine models.

Context, pricing, cutoff, and capabilities from xAI model docs (updated August 18, 2026).

Vendor source