{"article":{"id":"79dd6a94-c616-4d0e-b76f-d4e2035122ee","slug":"sparks-and-pricing","locale":"en","title":"Sparks & pricing","content_md":"\n**Sparks** are Hinvel's in-app credits. They pay for the parts of Hinvel that run AI for you.\n\n## What's free\n\n- Reading and choosing — every author-written choice, in every story.\n- Browsing stories, characters and Shorts.\n- A daily allowance of free Talk turns for signed-in adults.\n\n## What uses Sparks\n\n- Talk turns beyond your daily free allowance.\n- Creating a story: the Story Bible, sprites, backgrounds, CGs, cover and chapters. Higher quality tiers cost more.\n- Regenerating a step in the Studio.\n\nYou always see an estimate before anything starts. If a generation fails, **the Sparks for that step are returned automatically** — you don't need to ask.\n\n## Buying Sparks\n\nSparks come in one-time packs on the [Sparks page](/credits). There are no subscriptions and no auto-renewal. Purchased Sparks don't expire while your account is open.\n\n> Payments are in preview right now: you can walk through checkout, but nothing is charged and no Sparks are added.\n\n## Refunds\n\nUnused packs can be refunded within a limited window, and the rules for failed generations, chargebacks and legal withdrawal rights are in [Sparks & refunds](/refunds).\n","category":"sparks","sort_order":20,"updated_at":"2026-10-10T09:01:27.655751+00:00"}}