[GH-ISSUE #14924] issue: Model Fails to Invoke Tools through API #32934

New Issue

GiteaMirror · 2026-04-25T06:46:37-05:00

GiteaMirror commented

2026-04-25 06:46:37 -05:00

Originally created by @phpia on GitHub (Jun 12, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/14924

Check Existing Issues

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

Installation Method

Git Clone

Open WebUI Version

0.6.14

Ollama Version (if applicable)

No response

Operating System

macOS

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

When a model is called through the API and the model uses tools, it should call them.

Actual Behavior

It's an issue that needs to be reviewed in the openwebui code. A model configured to use a tool doesn't work in API call mode because the logic is implemented to function on the frontend.

Steps to Reproduce

Configure a model for tool use
Call the model throw /api

Logs & Screenshots

n/a

Additional Information

No response

Originally created by @phpia on GitHub (Jun 12, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/14924 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Git Clone ### Open WebUI Version 0.6.14 ### Ollama Version (if applicable) _No response_ ### Operating System macOS ### 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 When a model is called through the API and the model uses tools, it should call them. ### Actual Behavior It's an issue that needs to be reviewed in the openwebui code. A model configured to use a tool doesn't work in API call mode because the logic is implemented to function on the frontend. ### Steps to Reproduce Configure a model for tool use Call the model throw /api ### Logs & Screenshots n/a ### Additional Information _No response_

GiteaMirror added the bug label 2026-04-25 06:46:37 -05:00

GiteaMirror closed this issue

2026-04-25 06:46:38 -05:00

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Reference: github-starred/open-webui#32934