# Is anthropic too expensive or is it just on my backend canister?

**URL:** <https://forum.dfinity.org/t/is-anthropic-too-expensive-or-is-it-just-on-my-backend-canister/57268>\
**Category:** Developers\
**Created:** [September 10, 2025, 2:42pm UTC](https://forum.dfinity.org/t/is-anthropic-too-expensive-or-is-it-just-on-my-backend-canister/57268 "2025-09-10T14:42:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AliSci](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/alisci/32/33799_2.png) [@AliSci](https://forum.dfinity.org/u/AliSci)\
**Post date:** [September 10, 2025, 2:42pm UTC](https://forum.dfinity.org/t/is-anthropic-too-expensive-or-is-it-just-on-my-backend-canister/57268/1 "2025-09-10T14:42:57Z")

</div>

I have like 10 users using it just in one day i ad 6$ and now it droped to 1.5$. How to improve on that?

here is my code with very long system prompt.

here is my code

> <https://github.com/aliscie2/oDoc/blob/dev2/src/backend/src/ai_agent/updates.rs>

But what matter the most is how big is my system prompt

> <https://github.com/aliscie2/oDoc/blob/dev2/src/frontend/chatBot/prompts/job.ts>

 ![Screenshot 2025-09-10 at 5.35.52 PM](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/3X/d/1/d1a7b9b5ca25a030e4c8d5bbc9a9a4f850cf698e.jpeg)