GPT 5.6 and Codex See Massive Usage Surge

soumitrashukla9 · x · 2026-07-15

A repost claims that OpenAI's GPT 5.6 launch might be their most successful since ChatGPT, suggesting it could be an "IPO-changing" event.

Quoting another analysis, Codex's active users jumped from 5 million to 6 million in 24.5 hours—meaning an increase of about 1 million in a single day. For context, Claude Code's last reported user count was 2 million in February. If accurate, this represents an exceptionally strong recent growth in Codex usage.

Related event: Codex Developer Update: GPT-5.6 and Parallel Tasks(28 posts)→

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