OpenAI Grants 10x Codex Quota to 8,000 Individuals: GPT-5.5 Launch Party Transforms into a Month-long Developer Ramp-up Battle

According to Insight Beating monitoring, OpenAI has sent emails to over 8000 developers who applied to attend the GPT-5.5 offline party, informing them that their personal ChatGPT account's Codex rate limit has been increased by 10 times, effective immediately and lasting until June 5. Regardless of receiving the party invitation, all applicants will receive this reward.

The daily limit of Codex is set according to the subscription tier, and a 10x increase means developers can significantly increase the frequency of using GPT-5.5 for prototyping, debugging, and deployment. There is currently a debate on whether this increase overlaps with the 20x rate for Pro $200 users: some users claim that OpenAI support responded by taking the higher value of the two without cumulative stacking, but OpenAI has not officially responded yet.

CEO Sam Altman teased on X before sending the email that he would "do something nice" for uninvited applicants, with the post receiving over 520,000 views within a few hours. The GPT-5.5 offline party is scheduled to take place in San Francisco on May 5 at 5:55 PM PT, and the event reached full capacity rapidly within 24 hours of 8000 people signing up. On the same evening, Anthropic will also host a media reception for the Code with Claude developer conference in San Francisco, with the two companies' events almost overlapping in timing.

The month-long high-volume free usage window is essentially a developer habituation experiment: when the limit is restored on June 5, developers who have already integrated Codex into their daily workflow will likely need to choose to pay to continue.