[GH-ISSUE #10963] Custom Model: System Prompt replacing "ß" #70695

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opened 2026-05-13 02:43:22 -05:00 by GiteaMirror · 0 comments
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Originally created by @bengrau on GitHub (Feb 28, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/10963

Installation Method

I have installed the OpenWebUi version from DigitalOcean.

Environment

  • Open WebUI Version: [0.5.18]

  • Operating System: OpenWebUI Docker from DigitalOcean

Confirmation:

  • [ x] I have read and followed all the instructions provided in the README.md.
  • [ x] I am on the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided the exact steps to reproduce the bug in the "Steps to Reproduce" section below.

Expected Behavior:

I am using a custom bot called "LC-Goshstwriter". Its using the gpt-4o-mini model. Here is the very simple system-prompt:
Whenever you receive an input containing the character “ß,” transform it into “ss.”
If you are requested to output text in German, always replace any “ß” with “ss” according to Swiss German conventions.
Wann immer du eine Eingabe erhältst, die das Zeichen „ß“ enthält, bitte wandle es in „ss“ um.
Falls du aufgefordert wirst, Text auf Deutsch auszugeben, ersetze jedes „ß“ gemäß schweizerischer Konvention durch „ss“.

But its not changing the "ß" in the output.

Actual Behavior:

I expected the out put of the query to replace "ß" with "ss".

--- If I use the "you are a pirate system prompt it outputs in a pirate format" but still not replaces the "ß". Any ideas?

Originally created by @bengrau on GitHub (Feb 28, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/10963 ## Installation Method I have installed the OpenWebUi version from DigitalOcean. ## Environment - **Open WebUI Version:** [0.5.18] - **Operating System:** OpenWebUI Docker from DigitalOcean **Confirmation:** - [ x] I have read and followed all the instructions provided in the README.md. - [ x] I am on the latest version of both Open WebUI and Ollama. - [ ] I have included the browser console logs. - [ ] I have included the Docker container logs. - [ ] I have provided the exact steps to reproduce the bug in the "Steps to Reproduce" section below. ## Expected Behavior: I am using a custom bot called "LC-Goshstwriter". Its using the gpt-4o-mini model. Here is the very simple system-prompt: Whenever you receive an input containing the character “ß,” transform it into “ss.” If you are requested to output text in German, always replace any “ß” with “ss” according to Swiss German conventions. Wann immer du eine Eingabe erhältst, die das Zeichen „ß“ enthält, bitte wandle es in „ss“ um. Falls du aufgefordert wirst, Text auf Deutsch auszugeben, ersetze jedes „ß“ gemäß schweizerischer Konvention durch „ss“. But its not changing the "ß" in the output. ## Actual Behavior: I expected the out put of the query to replace "ß" with "ss". --- If I use the "you are a pirate system prompt it outputs in a pirate format" but still not replaces the "ß". Any ideas?
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Reference: github-starred/open-webui#70695