Grok 4.6

xAI🇺🇸 United States

active

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Context window500K tokens

Input / 1M tokens$2

Output / 1M tokens$6

Version History

4.6minorAugust 12, 2026

xAI released Grok 4.6 with a 500K token context window and multimodal input support (text, image, file), now available via OpenRouter's API. The company claims it is their smartest model yet, with frontier performance on coding, knowledge work, and STEM tasks, though no independent benchmark scores were disclosed.

Coverage

model release

xAI Launches Grok 4.6 With 500K Token Context Window

xAI has released Grok 4.6, a text-and-image model featuring a 500K token context window. The model is priced at $2.00 per million input tokens and $6.00 per million output tokens, and is available now through OpenRouter's API.

August 12, 2026 · 4:06 PM2 min read

Grok 4.6 xAI OpenRouter