Grok 4.6
Released
Grok 4.6 was released on August 12, 2026 with 6 documented changes.
Grok 4.6 is the current flagship model: a 500k-token context window, text and image input, text output, and four reasoning-effort settings. Prices are tiered on prompt size.
What changed in Grok 4.6?
In our words, from the release notes — never copied.
- Model id is grok-4.6, with a 500k-token context window.
- Takes text and image input and returns text.
- Knowledge cutoff is February 1, 2026.
- reasoning_effort can be set to low, medium, high or xhigh.
- Under a 200k-token prompt: $2 per 1M input, $0.50 cached input, $6 output.
- Above 200k tokens: $4 per 1M input, $1 cached input, $12 output.
Is this the latest version?
This page is frozen to Grok 4.6 and stays at this address. The Grok version history always lists the newest tracked version first.
Summarized by Grok Tracker from SpaceXAI release notes. Last verified .