Report: at a September 17 xAI meeting, Elon Musk and his executives said Grok has 64M monthly users; OpenAI said in August that ChatGPT had 700M weekly users
After leaving Trump, he's all in on AI. — www.nytimes.com/2025/09/18/t...
Context & Ripple Effects
Grok began as a limited release tied to X Premium+ access, then xAI signaled a broader distribution posture with its plan to open-source Grok. The newly disclosed audience figure offers a clearer, if non-equivalent, measure of how that route to market has translated into use.
The comparison matters because ChatGPT's figure is reported on a weekly basis while Grok's is monthly. It nonetheless puts xAI's consumer reach in context as Musk presses the product to compete with established chatbots.
First-order effects
- xAI gains a public usage benchmark for Grok, while the differing monthly and weekly measures limit any direct like-for-like comparison with ChatGPT.
- The disclosed scale underscores that OpenAI retains a substantially larger reported consumer audience under the cited metrics, increasing the visibility of Grok's distribution challenge.
Second-order effects
- xAI faces stronger pressure to convert its X-linked access and product development into more frequent use, not simply registered or occasional monthly activity.
- Rival labs and enterprise buyers are likely to weigh model capability claims alongside demonstrated reach; the reported push for Grok to match Claude makes distribution a more consequential competitive variable.
Third-order effects
- If comparable gaps persist, consumer AI competition may sort less by standalone model claims and more by whether a lab controls a durable route to users and can sustain engagement.
- Inconsistent usage disclosures—monthly versus weekly users—could make standardized engagement and retention metrics more important for judging AI platforms' relative position.
The trend: Generative-AI labs are increasingly competing on distribution and repeat usage as much as on model capability.