The AI Daily Brief · Thursday, October 1, 2026
The AI application Muse has achieved rapid user adoption, reaching 3 million weekly active users in just over three weeks, surpassing the growth rate of Codex. This success has fueled a debate about whether a superior user experience with a less advanced model can outperform a product with a top-tier model but a less intuitive interface.
“is whether an AI product with a great user experience, but a less than state-of-the-art model, beats a product with a less good user experience, but a state-of-the-art model.”
“Muse has hit 3 million weekly active users. Daily users, who send at least one prompt per day have reached one million.”
“Codex took about three months to reach 3 million weekly active users. So Muse currently looks like a faster-growing AI app.”