Can I change plans later?+-
Yes. You can upgrade or downgrade at any time from your billing settings. When upgrading, you'll be charged a prorated amount. When downgrading, the new rate takes effect at the next billing cycle.
What happens to my timelines if I downgrade?+-
Your existing timelines, worlds, and data are never deleted. However, if you exceed your new plan's limits, you won't be able to create new events until you're within the limits. Locked features like ChronoRealm or ChronoCouncil will become read-only.
What AI models are used?+-
Each tier uses a different level of AI models. Explorer uses a single spine model (default: Opus) with Sonnet as the critic and expansion model — you can choose any model from the pool. Creator uses 5 spine models with Level 3 critics (Sonnet, GPT-5.2, Gemini 3 Pro). Studio uses the full 7-model council with the best available models (Opus, Grok 4 Flagship, Gemini 3.1 Pro) and lets you choose between versions. Ultra uses 7 instances of Opus for maximum quality.
What is ChronoStates?+-
ChronoStates is an interactive world building pipeline. Start with a prebuilt or custom scenario, make decisions, and watch consequences cascade across history. At any point you can export your timeline as an AI-generated book, post to Substack or Patreon, or build a full world bible with characters, factions, and lore.
What is ChronoCouncil?+-
ChronoCouncil is an AI book pipeline. Nine different LLMs each write a chapter, the rest rank them, five write synthesis versions, they rank again, and the winner gets expanded. Available from Explorer tier and up — higher tiers use better models.
What are the event generation styles?+-
In Sandbox Mode, you can choose how events are written: Historian (dry, factual), Storyteller (narrative, immersive), Satirist (irreverent, Pratchett-esque), or War Correspondent (urgent dispatches). Explorer and above can also enter a completely custom style description.
What is Chronicler?+-
Chronicler is an AI chat assistant powered by GPT-4o that includes everything in Voyager (Sandbox mode, 300 events/month, all scenarios). It's available as a standalone $19.99/mo subscription or included free with Explorer+ tiers. You get persistent conversations, document uploads for context injection, and a simplified single-model book writing pipeline.
Is there a free trial?+-
The Free plan is always available with no credit card required. You get 5 prebuilt scenarios with event generation and 500-word year-end summaries to experience the core gameplay.