Pricing
Humanitext Antiqua is an academic service operated as a research project. Because generating answers incurs computational costs, the free plan carries a daily usage limit, and paid plans are being prepared to cover the actual costs of operation. The service is not run for profit.
Free Plan
The core features for research and study, open to everyone
¥0
A daily processing allowance (shown as a percentage; how many questions it covers depends on your settings)
- Questions across the full corpus of Greek and Latin classical texts, with source-cited answers
- An interface in four languages: Japanese, English, Korean, and Chinese
- Inquiry history kept in your own browser; whether the text of a conversation is stored on the server is your choice
- Ready to use simply by signing in with a Google account
Personal Plan (annual)
For researchers and students who wish to go deeper
Coming soon
Annual billing only
- A higher daily usage limit
- Answers from more capable models
- Early access to new features (planned: consulting your own PDF materials, comprehensive literature exploration, and more)
- Pricing set solely to recover operating costs
We will announce availability on this page and in our notices when the plan opens.
Institutional License (annual)
For libraries, graduate schools, seminars, and other institution-wide use
Custom quote
- Every affiliated member can use the service without worrying about limits
- Payment by invoice supported
- Individual consultation on adoption and operation
- Inquiries about educational use in courses and seminars are equally welcome
Fees for this service go toward the actual costs required to maintain it, such as AI model usage and the operation of the search infrastructure. The service is not run for profit.
There are no usage-based charges and no credits to purchase. On every plan, no fee ever arises without an action of your own.
If you reach the free plan's daily limit, it resets automatically the next day and the service becomes available again.
Separately from the per-person limit, the Service as a whole has a daily processing ceiling. On a day when it is reached, no further questions can be accepted until 00:00 UTC (09:00 Japan time).
To keep operation stable, plan contents and usage limits may be adjusted with prior notice.