Anthropic has been showing significant progress with their AI named Claude. The company recently introduced Claude Mythos, an advanced AI capable of hacking almost any major web browser or software. Meanwhile, Anthropic’s competitor, OpenAI, achieved a milestone by reaching 3 million users for its coding agent Codex. OpenAI’s CEO, Sam Altman, announced that they were removing all usage limits for Codex to mark this achievement.
Altman mentioned that the limits would be reset for every additional 1 million users until Codex reaches 10 million users. This reset allows users a fresh usage quota for the remaining period, disregarding their previous usage percentage.
Boris Cherny, the creator of Claude Code, expressed his awe at Claude Mythos, describing it as incredibly powerful and somewhat frightening. Cherny emphasized that the company was actively addressing cybersecurity concerns. Originally intended as a coding tool, Mythos was envisioned as the next iteration of Claude Code.
Anthropic revealed that Mythos identified numerous vulnerabilities across different software that had gone unnoticed by humans. The company clarified that Mythos would not be publicly accessible and instead collaborated with entities like Google and Microsoft to address any security flaws detected by Mythos under Project Glasswing.
Additionally, Anthropic disclosed that their run-rate revenue had surpassed $30 billion, significantly increasing from $9 billion at the end of 2025. In contrast, OpenAI, anticipated to go public later in the year, reported an RRR of $25 billion as of March 2026. This disparity in revenue could raise concerns within OpenAI, valued at $852 billion compared to Anthropic’s $380 billion valuation.
Codex, Anthropic’s response to Claude Code, has become a focal point for OpenAI’s enterprise products. Thibault Sottiaux, the head of Codex, noted a rapid surge in user numbers, with 1 million new Codex users acquired in less than a month. Sottiaux expressed enthusiasm for the growth, highlighting the increase from 2 million to 3 million weekly users in a short span.
Tibo, having experienced a surge in user activity, reset Codex limits on April 1, 2026, due to a higher rate of users hitting limits. Similarly, some Claude users reported reaching limits faster than before. However, Anthropic investigated and assured users that no unfair charges were imposed.
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