Terms
Launch terms for using Euler responsibly.
Educational assistance
Euler is an AI tutoring tool, not an accredited instructor or authoritative answer service. It can make mistakes. Check important results, assumptions, citations, and work submitted for assessment.
Acceptable use
You must be at least 18 and use the service lawfully. Do not attempt to bypass usage limits, access another person's data, upload unlawful material, or expose API credentials.
Plans and billing
Free and Pro usage limits reset monthly. Pro is billed at €12 per month until canceled. Access continues through the paid period, subject to fair use and provider availability.
Availability
Voice, image processing, and frontier models depend on third-party services and may occasionally be unavailable. When a paid capability fails before processing, Euler restores the reserved usage where technically possible.