Grok 4 was released by xAI on July 9, 2025, as a flagship model in the Grok line.
xAI scaled up reinforcement-learning training for Grok 4 by over an order of magnitude in compute, with native tool use and real-time search and a 256,000-token API context window, at the same $3 / $15 price as Grok 3.
Compared with Grok 3 · the model it replaces
Solves about 1 in 6 abstract reasoning puzzles
ARC-AGI-2 — visual puzzles that test abstract reasoning
15.9%
✦ nearly double Claude Opus 4's 8.6% in xAI's chart
Costs the same as Grok 3
API price per 1M tokens — input / output
$3 / $15
same as Grok 3
Every Monday, only when something shipped: the AI models that came out, what each one changed, and which lines are due next.
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Grok 4.7 is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: Grok 4.7 · Sep 21, 2026
“Grok 4.8, which is a 2.5T model trained with our new C++ software stack, will finish training this week and start RL” — xAI, Sep 14, 2026 · Elon Musk on X
What changed in Grok 4.7 →Newest first. See the full line with every card →