[GH-ISSUE #19800] issue: "**Chunk too big**" error when using "perplexity/sonar-deep-research:online" in open router #34527

Closed
opened 2026-04-25 08:33:31 -05:00 by GiteaMirror · 2 comments
Owner

Originally created by @mahdikohan on GitHub (Dec 7, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/19800

Check Existing Issues

  • I have searched for any existing and/or related issues.
  • I have searched for any existing and/or related discussions.
  • I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!).
  • I am using the latest version of Open WebUI.

Installation Method

Docker

Open WebUI Version

0.6.36

Ollama Version (if applicable)

No response

Operating System

Ubuntu

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 provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

getting answer without problem

Actual Behavior

an error raise and give us "too big chunk size"

Steps to Reproduce

I have done all steps

Logs & Screenshots

Image

Additional Information

No response

Originally created by @mahdikohan on GitHub (Dec 7, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/19800 ### Check Existing Issues - [x] I have searched for any existing and/or related issues. - [x] I have searched for any existing and/or related discussions. - [x] I have also searched in the CLOSED issues AND CLOSED discussions and found no related items (your issue might already be addressed on the development branch!). - [x] I am using the latest version of Open WebUI. ### Installation Method Docker ### Open WebUI Version 0.6.36 ### Ollama Version (if applicable) _No response_ ### Operating System Ubuntu ### 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 **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior getting answer without problem ### Actual Behavior an error raise and give us "too big chunk size" ### Steps to Reproduce I have done all steps ### Logs & Screenshots <img width="1265" height="179" alt="Image" src="https://github.com/user-attachments/assets/8672f4c5-3634-49d4-8c4f-42d05be11258" /> ### Additional Information _No response_
GiteaMirror added the bug label 2026-04-25 08:33:31 -05:00
Author
Owner

@owui-terminator[bot] commented on GitHub (Dec 7, 2025):

🔍 Similar Issues Found

I found some existing issues that might be related to this one. Please check if any of these are duplicates or contain helpful solutions:

  1. #19777 issue:
    by Yaute7 • Dec 05, 2025 • bug

  2. #19522 feat: open router image create/edit
    by davidpede • Nov 26, 2025 • bug

  3. #16527 issue: Limited chunk size with S3 Vectors
    by Cqban • Aug 12, 2025 • bug

  4. #19752 issue: minor UI Bug: knowledge sharing
    by mahenning • Dec 04, 2025 • bug

  5. #19563 issue:
    by naruto7g • Nov 28, 2025 • bug

Show 5 more related issues
  1. #19211 issue:
    by Byrnes9 • Nov 16, 2025 • bug

  2. #19496 issue: 500 internal server error appears in v0.6.40
    by cloudtuotuo • Nov 26, 2025 • bug

  3. #19417 issue: v0.6.37 SQL Error
    by AKHYP • Nov 24, 2025 • bug

  4. #18418 issue:
    by formytech • Oct 18, 2025 • bug

  5. #13541 issue:
    by harrismcc • May 06, 2025 • bug


💡 Tips:

  • If this is a duplicate, please consider closing this issue and adding any additional details to the existing one
  • If you found a solution in any of these issues, please share it here to help others

This comment was generated automatically by a bot. Please react with a 👍 if this comment was helpful, or a 👎 if it was not.

<!-- gh-comment-id:3621912470 --> @owui-terminator[bot] commented on GitHub (Dec 7, 2025): 🔍 **Similar Issues Found** I found some existing issues that might be related to this one. Please check if any of these are duplicates or contain helpful solutions: 1. [#19777](https://github.com/open-webui/open-webui/issues/19777) **issue:** *by Yaute7 • Dec 05, 2025 • `bug`* 2. [#19522](https://github.com/open-webui/open-webui/issues/19522) **feat: open router image create/edit** *by davidpede • Nov 26, 2025 • `bug`* 3. [#16527](https://github.com/open-webui/open-webui/issues/16527) **issue: Limited chunk size with S3 Vectors** *by Cqban • Aug 12, 2025 • `bug`* 4. [#19752](https://github.com/open-webui/open-webui/issues/19752) **issue: minor UI Bug: knowledge sharing** *by mahenning • Dec 04, 2025 • `bug`* 5. [#19563](https://github.com/open-webui/open-webui/issues/19563) **issue:** *by naruto7g • Nov 28, 2025 • `bug`* <details> <summary>Show 5 more related issues</summary> 6. [#19211](https://github.com/open-webui/open-webui/issues/19211) **issue:** *by Byrnes9 • Nov 16, 2025 • `bug`* 7. [#19496](https://github.com/open-webui/open-webui/issues/19496) **issue: 500 internal server error appears in v0.6.40** *by cloudtuotuo • Nov 26, 2025 • `bug`* 8. [#19417](https://github.com/open-webui/open-webui/issues/19417) **issue: v0.6.37 SQL Error** *by AKHYP • Nov 24, 2025 • `bug`* 9. [#18418](https://github.com/open-webui/open-webui/issues/18418) **issue:** *by formytech • Oct 18, 2025 • `bug`* 10. [#13541](https://github.com/open-webui/open-webui/issues/13541) **issue:** *by harrismcc • May 06, 2025 • `bug`* </details> --- 💡 **Tips:** - If this is a duplicate, please consider closing this issue and adding any additional details to the existing one - If you found a solution in any of these issues, please share it here to help others *This comment was generated automatically by a bot.* Please react with a 👍 if this comment was helpful, or a 👎 if it was not.
Author
Owner
<!-- gh-comment-id:3622038190 --> @Classic298 commented on GitHub (Dec 7, 2025): https://docs.openwebui.com/getting-started/env-configuration#chat_stream_response_chunk_max_buffer_size
Sign in to join this conversation.
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: github-starred/open-webui#34527