# Lyra > Lyra is a free story-writing platform on a mission to bring super-personalized intelligence to everyone: step into living, hand-crafted worlds and shape the story with an AI cast that stays in character and remembers what you did. Available on web and iOS. Adults only (18+). Lyra turns AI roleplay into co-writing: open a story, reply in your own words, and a cast of characters responds in voice — staying consistent across long scenes. You can regenerate, branch, and edit any reply, illustrate moments as images, animate them into clips, and create and publish your own worlds in minutes. ## Lyra University ### Start here - [What is Lyra?](https://www.lyra-ai.io/university/what-is-lyra): A story-writing platform that brings super-personalized intelligence to everyone. Step into living worlds and shape the story with an AI cast that remembers you. Free on web and iOS. - [Quick start](https://www.lyra-ai.io/university/quick-start): Go from landing page to your first scene in under a minute: browse a world, hit Start chat, and reply in your own words. No setup required. ### Chat & play - [How chatting works](https://www.lyra-ai.io/university/chatting): Every reply is a turn. Learn how the AI cast stays in character and remembers the scene, and how to regenerate, swipe between alternatives, edit, branch, and delete turns. - [Personas & guidelines](https://www.lyra-ai.io/university/personas): Write as a character with personas, and steer tone, pacing, and content with per-chat guidelines. Turn on reasoning when you want the model to think before it writes. - [Choosing a model: Mercury, Mars, Neptune, Neptune Plus, Jupiter](https://www.lyra-ai.io/university/models): Lyra ships a small, curated set of models. Mercury is the immersive-roleplay default, Mars is fast and reliable, Neptune is the creative fan favorite, Neptune Plus serves it at full precision and faster, and Jupiter is built for the longest stories on Lyra Pro. Blend them with Dynamic, and switch per chat in seconds. ### Create - [Creating a story](https://www.lyra-ai.io/university/creating-a-story): Spin up a whole world from a single spark. Learn the anatomy of a Lyra story — title, greeting, scenario, system prompt, tags, worldbook, and visibility — and publish in minutes. - [Writing great prompts](https://www.lyra-ai.io/university/writing-prompts): A clear system prompt and a tight worldbook make a story sing. Practical tips for opening lines, character voice, scenario framing, and memory entries that stay in character. ### Discover - [Discover & search](https://www.lyra-ai.io/university/search): Browse a hand-picked feed or search the full catalog by name, setting, or tag. Sort by trending, most chatted, or newest to find your next world fast. ### Media - [Images & video](https://www.lyra-ai.io/university/images-and-video): Bring a scene to life: Illustrate generates an image for any reply, and Animate turns that still into a short clip. See what each costs in stars and how to get the best result. ### Billing - [Stars: how they work](https://www.lyra-ai.io/university/stars): Stars pay for extras like images and video. Chatting is never charged in stars. New accounts get 10 free stars, packs start at $1.99, and subscribers earn a 1.25× bonus on every pack. - [Plans & pricing](https://www.lyra-ai.io/university/plans): Lyra is free to play. Lyra+ and Lyra Pro help the cast remember more, add a star bonus, and — on Pro — unlock the Jupiter model. Weekly or annual, cancel anytime. ### Trust - [Safety & account](https://www.lyra-ai.io/university/safety): Lyra is an 18+ platform with clear content rules and one-tap reporting. Learn how to manage your account, control story visibility, and report anything that breaks the rules. - [Frequently asked questions](https://www.lyra-ai.io/university/faq): Quick answers about Lyra: what it costs, whether chatting is free, which model to pick, how memory works, image and video pricing, and how to cancel a subscription. ## Key facts - Free to play: browsing, chatting, and creating stories cost nothing. New accounts get 10 free stars. - Chatting is never charged in stars. Stars pay for extras like media generation: 10 stars per image (Illustrate), 30 stars per video (Animate). - Star packs: 199 stars for $1.99, 549 for $4.99, 1,199 for $9.99. Lyra+ and Lyra Pro subscribers earn a 1.25× bonus on every pack. - Plans: Free; Lyra+ ($4.49/week or $116.99/year); Lyra Pro ($8.99/week or $233.99/year). Paid plans help the cast remember more of the story; Lyra Pro unlocks the Jupiter model for the longest stories. Cancel any time. - Three curated models: Mars (fast, the default), Saturn (richer, more descriptive), and Jupiter (for the longest stories, Lyra Pro). Switchable per chat. - Create stories with a greeting, scenario, system prompt, tags, optional worldbook, and Public / Unlisted / Private visibility. ## More - [Home](https://www.lyra-ai.io/) - [Lyra University](https://www.lyra-ai.io/university) - [Frequently asked questions](https://www.lyra-ai.io/university/faq)