ChatGPT vs Lumo Comparison

• Go (individual, monthly): $6/mo — OpenAI states this plan may include ads
• Pro (individual, monthly): From $100/mo, with a choice of three usage tiers

• Lumo AI Plus (yearly): USD 9.99/month billed as $119.88 every 12 months (23% off the monthly rate); monthly billing available at $12.99/month with no annual commitment. 30-day money-back guarantee.
• Lumo AI Plus (monthly): USD 12.99/month, no annual commitment

Unlimited text chats on the base model, subject to abuse guardrails, but limited file uploads, image creation, voice, deep research, memory and context, and Codex access. Advanced reasoning models, Projects, scheduled tasks, and custom GPTs are paid-tier features.

Limited Max model usage, limited messages and chat history, limited image generations, and 1 Project; the exact numeric caps are not published

Conversations, Memories, and the account itself persist until the user deletes them. Once a deletion request is made, OpenAI states data is removed from its systems within 30 days, with exceptions where longer retention is required: fraud and abuse prevention, legal obligations, financial records for payments, and the audit trail of the deletion request itself. Temporary Chats are deleted automatically within 30 days unless a longer hold is needed for legal or safety reasons.

Two distinct behaviours. In guest mode the conversation is erased when the session ends and nothing is persisted at all. With an account, chat history is saved only if you choose to keep it, and it is stored under zero-access encryption — Conversation Keys wrapped by a Master Key wrapped by your own PGP keypair, which is unlocked by your password. The operator states it stores no metadata such as timestamps, IP addresses, or chat context alongside either.

OpenAI OpCo, LLC, San Francisco, California (1455 Third Street) is the controller for most of the world. OpenAI Ireland Limited, Dublin, is the data controller for users in the EEA, the UK, and Switzerland.

Legal entity Proton AG, registered at Route de la Galaise 32, 1228 Plan-les-Ouates, Geneva, Switzerland, per the product's own privacy policy.