Exclusive: Replit taps OpenAI's low-cost Luna model for new 'Free Mode'
Fortune Emily Forlini
Replit launched Free Mode, a feature powered by OpenAI's GPT-5.6 Luna model, available to paid subscribers ($20–$100/month) to reduce token consumption on routine tasks. OpenAI cut Luna's API costs by 80% on July 30, enabling the partnership. The feature automatically routes complex requests to more powerful models then reverts to Luna, lowering costs for developers while expanding access to coding tools.
Why it matters
An 80% reduction in token costs for Luna helped convince Replit to use it.
