Use Solar Pro 4 free at Freebuff

What to know

Solar Pro 4 is the larger option in Freebuff’s Solar pair. Its text only workflow suits code review, planning and work that can be described without image attachments. The current promotion removes its hourly Freebucks charge, so trying it does not spend the daily model balance.

Solar Mini 4 is the lighter alternative. Solar Pro 4 is the stronger option according to Freebuff’s catalog, rather than a renamed Mini model.

The promotion has no published closing date and the price can increase when it ends. Session and fair use limits still apply even while the hourly price is zero.

The model is listed for both full and limited access regions. Your country and VPN status affect the daily allowance.

Solar Pro 4 currently costs zero Freebucks per hour. Other models still use the shared daily balance, and normal usage restrictions remain in place.

Free access does not require a paid subscription or credit card. Sign in through Freebuff using Google or GitHub. You must be an adult using one personal account. Freebuff may require a government ID and selfie before allowing free use to continue.

Choose Solar Pro 4 in the current model picker. Review the session price and remaining allowance before starting.

Text ads fund the service. Prompts and project data are processed by Freebuff and its providers. Check the privacy notice before sharing private code, and supervise sessions through the official apps.

Offer starts October 5, 2026 at 07h 15m 00s UTC