[GH-ISSUE #13149] issue: 400: Invalid 'stop': array too long when using Workspace model specifically #120137

New Issue

GiteaMirror · 2026-05-20T21:41:54-05:00

GiteaMirror commented

2026-05-20 21:41:54 -05:00

Originally created by @theprezz87 on GitHub (Apr 22, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/13149

Check Existing Issues

I have searched the existing issues and discussions.
I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

v0.6.5

Ollama Version (if applicable)

No response

Operating System

Almalinux

Browser (if applicable)

No response

Confirmation

I have read and followed all instructions in README.md.
I am using 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 listed steps to reproduce the bug in detail.

Expected Behavior

Autocomplete to work in continue.dev

Actual Behavior

{"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."} when using a Workspace model only

Steps to Reproduce

If I am using open webui API with an openai model directly and activate the autocomplete with Continue.dev, it works fine. If I create a model in Workspace using the very same openai model and use the Workspace custom name model in Continue.dev, I get {"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."}

Logs & Screenshots

name: Generic AutoComplete
    provider: openai
    model: gpt-4-turbo
    apiBase: https://api-to-open-webui/api
    apiKey: sk-xxx
    env:
      useLegacyCompletionsEndpoint: false
    roles:
      - autocomplete

Works

name: Generic AutoComplete
    provider: openai
    model: workshop-model-using-gpt-4-turbo-with-nothing-else
    apiBase: https://api-to-open-webui/api
    apiKey: sk-xxx
    env:
      useLegacyCompletionsEndpoint: false
    roles:
      - autocomplete

{"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."}

Additional Information

No response

Originally created by @theprezz87 on GitHub (Apr 22, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/13149 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version v0.6.5 ### Ollama Version (if applicable) _No response_ ### Operating System Almalinux ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have listed steps to reproduce the bug in detail. ### Expected Behavior Autocomplete to work in continue.dev ### Actual Behavior {"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."} when using a **Workspace** model **only** ### Steps to Reproduce If I am using open webui API with an openai model directly and activate the autocomplete with Continue.dev, it works fine. If I create a model in **Workspace** using the very same openai model and use the **Workspace** custom name model in Continue.dev, I get {"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."} ### Logs & Screenshots ``` name: Generic AutoComplete provider: openai model: gpt-4-turbo apiBase: https://api-to-open-webui/api apiKey: sk-xxx env: useLegacyCompletionsEndpoint: false roles: - autocomplete ``` Works ``` name: Generic AutoComplete provider: openai model: workshop-model-using-gpt-4-turbo-with-nothing-else apiBase: https://api-to-open-webui/api apiKey: sk-xxx env: useLegacyCompletionsEndpoint: false roles: - autocomplete ``` {"detail":"400: Invalid 'stop': array too long. Expected an array with maximum length 4, but got an array with length 10 instead."} ### Additional Information _No response_

GiteaMirror added the bug label 2026-05-20 21:41:54 -05:00

GiteaMirror closed this issue

2026-05-20 21:41:56 -05:00

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Reference: github-starred/open-webui#120137