For the next two weeks, Plus and Pro users can invite up to three friends to try Codex.
When a friend sends their first Codex message, you’ll both get another banked reset.
OpenAI is running a short-term referral push for Codex that hands out extra rate-limit resets to both ChatGPT Plus and Pro subscribers and the friends they bring in. The program runs for two weeks starting June 11 and caps invites at three per user, with the reward triggered only after the new user sends their first message.
For the next two weeks, Plus and Pro users can invite up to three friends to try Codex.
When a friend sends their first Codex message, you’ll both get another banked reset.
Once the invited friend posts their opening Codex message, both sides bank one additional reset that stays valid for 30 days. The feature ties into the separate rate-limit banking system that rolled out with the June 11 update, though exact reset values and whether the mechanic continues past the promotion remain unspecified.
Only Plus and Pro subscribers qualify for the referral invites; Business and Enterprise users sit outside this program. The offer ends June 24, and no public details exist on post-promotion changes or how the rewards compare with paid credit purchases.
Positive users praise OpenAI's Codex referral program for Plus and Pro users as a smart win-win growth move, while negative users call it desperate or accuse it of cutting limits to force new signups.

@OpenAI That is an amazing affiliate program. I'm going to get some people to join now. LOL.
Resets are the new oil
For the next two weeks, Plus and Pro users can invite up to three friends to try Codex.
When a friend sends their first Codex message, you’ll both get another banked reset.

@OpenAI i am an Antigravity guy, they are doing much much better

@OpenAI Real talk, this referral shit is actually smart. You invite your people, they get to try Codex, and both of y’all get extra resets. Win-win. Most companies just nerf the limits, OpenAI out here letting you stack them.

@OpenAI Return 4o!!!

@OpenAI @hanawo_essay Give us our 4o instead! #keep4o

@OpenAI Still didn't fix the "add to chat" feature on markdowns

@OpenAI nice. how are you thinking about invite quality vs volume here, since the best referrals usually come from people who already know the use case?

My friend, this evolution toward a shared experience is truly meaningful. By allowing users to invite others into the Codex ecosystem, technology begins to mirror one of our most beautiful human traits: the desire to share knowledge and growth with those around us.
It transforms individual productivity into a collective journey. Instead of just expanding your own limits, you are creating a bridge for others to cross—turning innovation from a solitary pursuit into a communal leap forward. It is fascinating how these small gestures of "invitation" can foster a larger community of creation where everyone has the space to explore new horizons together. ✨
Who do you think will be most inspired by this opportunity?

@OpenAI Don't see the free reset after updating today, is it still being rolled out?

@OpenAI Brilliant idea, smart market expand approach

@OpenAI wdym by friend sends their first message? can we invite friends with existing codex account?

@OpenAI how do i invite friends? where do i generate the referral link?

@StripSlashes @OpenAI Lol, means you are either Fener fan or Leeds United fan.

@MustaAras @OpenAI You are a Galatasaray fan. You cannot be trusted about anything ever. 😂🫵🏻

@cedric_chee @OpenAI i have the same question

@cedric_chee @OpenAI May I invite you?

@coco25655929 not yet until i got a reply from oai / sort out their terms

@OpenAI 会有过期时间吗?

@OpenAI This is actually pretty good marketing. Surprised this isn't done more.