tech
Exclusive: Replit taps OpenAI's low-cost Luna model for new 'Free Mode'
Vibe coding company Replit debuted Free Mode today, a new feature powered by OpenAI’s GPT-5.6 Luna model. The joint announcement, shared exclusively with Fortune, heralds an enhanced partnership between the two tech companies that will see them work on several future products, they said.

TL;DR
- Replit debuted 'Free Mode,' powered by OpenAI's GPT-5.6 Luna model.
- Free Mode is designed to add value to existing paid subscriptions ($20/month Core, $100/month Pro).
- The feature allows users to perform tasks without consuming their subscription's limited AI token budget.
- OpenAI recently reduced the cost of its GPT-5.6 Luna model by 80%, enabling Replit's offering.
- This initiative reflects a broader industry trend of making AI products more affordable.
- Replit and OpenAI have an established partnership, with plans for future joint product developments.
- The companies share a vision of making powerful AI models accessible to a wider audience.