Remove GPT4All as AI-Provider by ThiloteE · Pull Request #15439 · JabRef/jabref

ThiloteE · 2026-03-28T19:15:07Z

Related issues and pull requests

PR Description

Removes the AI-provider "GPT4All".
Reason: The project is unmaintained, there are no security updates and prior maintainers are unresponsive.
GPT4All had thousands of stars on GitHub, so maybe somebody will step up, fork and maintain it, but until then, I feel it would be irresponsible to promote it to our user-base.

After:

ToDO

Remove GPT4All from user-documentation

Steps to test

Open File > Preferences > AI
See that GPT4All has been removed

Checklist

I own the copyright of the code submitted and I license it under the MIT license
I manually tested my changes in running JabRef (always required)
[/] I added JUnit tests for changes (if applicable)
I added screenshots in the PR description (if change is visible to the user)
[/] I added a screenshot in the PR description showing a library with a single entry with me as author and as title the issue number
I described the change in CHANGELOG.md in a way that can be understood by the average user (if change is visible to the user)
I checked the user documentation for up to dateness and submitted a pull request to our user documentation repository

Co-authored-by: Ruslan <ruslanpopov1512@gmail.com> Co-authored-by: ThiloteE <73715071+ThiloteE@users.noreply.github.com>

Co-authored-by: ThiloteE <73715071+ThiloteE@users.noreply.github.com>

InAnYan

I think it's good to go

ThiloteE · 2026-04-03T12:26:32Z

Will you fix JBang in a follow up PR?

Follow up to JabRef/jabref#15439

qodo-free-for-open-source-projects · 2026-04-03T12:54:25Z

Review Summary by Qodo

Remove GPT4All as unmaintained AI provider

✨ Enhancement

Walkthroughs

Description

• Removes GPT4All AI provider due to unmaintained status
• Eliminates all GPT4All-related properties and configuration
• Removes GPT4All model implementation and related tests
• Cleans up API key binding logic for remaining providers

Diagram

flowchart LR
  A["GPT4All Provider"] -->|removed| B["AiProvider enum"]
  C["Gpt4AllModel class"] -->|deleted| D["Model implementations"]
  E["GPT4All properties"] -->|removed| F["AiPreferences & AiTabViewModel"]
  G["GPT4All tests"] -->|removed| H["Test files"]
  B -->|simplified| I["Remaining providers: OpenAI, Mistral, Gemini, HuggingFace"]

File Changes

1. jablib/src/main/java/org/jabref/model/ai/AiProvider.java ✨ Enhancement +1/-2

Remove GPT4All enum value from provider list

jablib/src/main/java/org/jabref/model/ai/AiProvider.java

2. jablib/src/main/java/org/jabref/logic/ai/chatting/model/Gpt4AllModel.java ✨ Enhancement +0/-160

Delete entire GPT4All model implementation file

jablib/src/main/java/org/jabref/logic/ai/chatting/model/Gpt4AllModel.java

3. jablib/src/main/java/org/jabref/logic/ai/AiPreferences.java ✨ Enhancement +0/-36

Remove GPT4All chat model and API base URL properties

jablib/src/main/java/org/jabref/logic/ai/AiPreferences.java

View more (12)

4. jablib/src/main/java/org/jabref/logic/ai/AiDefaultPreferences.java ✨ Enhancement +2/-4

Remove GPT4All from predefined models and defaults

jablib/src/main/java/org/jabref/logic/ai/AiDefaultPreferences.java

5. jablib/src/main/java/org/jabref/logic/ai/chatting/model/JabRefChatLanguageModel.java ✨ Enhancement +2/-6

Remove GPT4All case from model builder and validation

jablib/src/main/java/org/jabref/logic/ai/chatting/model/JabRefChatLanguageModel.java

6. jablib/src/main/java/org/jabref/logic/ai/models/OpenAiCompatibleModelProvider.java ✨ Enhancement +1/-2

Remove GPT4All from supported providers list

jablib/src/main/java/org/jabref/logic/ai/models/OpenAiCompatibleModelProvider.java

7. jablib/src/main/java/org/jabref/logic/preferences/JabRefCliPreferences.java ✨ Enhancement +0/-8

Remove GPT4All preference keys and default values

jablib/src/main/java/org/jabref/logic/preferences/JabRefCliPreferences.java

8. jabgui/src/main/java/org/jabref/gui/preferences/ai/AiTabViewModel.java ✨ Enhancement +0/-25

Remove GPT4All properties from view model

jabgui/src/main/java/org/jabref/gui/preferences/ai/AiTabViewModel.java

9. jabgui/src/main/java/org/jabref/gui/preferences/ai/AiTab.java ✨ Enhancement +1/-12

Remove GPT4All UI bindings and prompt text

jabgui/src/main/java/org/jabref/gui/preferences/ai/AiTab.java

10. jabgui/src/main/java/org/jabref/gui/ai/components/privacynotice/PrivacyNoticeComponent.java ✨ Enhancement +0/-1

Remove GPT4All privacy policy hyperlink

jabgui/src/main/java/org/jabref/gui/ai/components/privacynotice/PrivacyNoticeComponent.java

11. jabgui/src/main/java/org/jabref/gui/ai/components/aichat/AiChatComponent.java ✨ Enhancement +1/-2

Remove GPT4All chat model property from dependencies

jabgui/src/main/java/org/jabref/gui/ai/components/aichat/AiChatComponent.java

12. jablib/src/test/java/org/jabref/logic/ai/models/OpenAiCompatibleModelProviderTest.java 🧪 Tests +2/-20

Remove GPT4All test cases from model provider tests

jablib/src/test/java/org/jabref/logic/ai/models/OpenAiCompatibleModelProviderTest.java

13. jablib/src/test/java/org/jabref/logic/ai/models/FetchAiModelsBackgroundTaskTest.java 🧪 Tests +0/-21

Remove GPT4All provider test case

jablib/src/test/java/org/jabref/logic/ai/models/FetchAiModelsBackgroundTaskTest.java

14. jabgui/src/test/java/org/jabref/gui/ai/components/aichat/AiChatComponentTest.java 🧪 Tests +0/-5

Remove GPT4All model property from component tests

jabgui/src/test/java/org/jabref/gui/ai/components/aichat/AiChatComponentTest.java

15. CHANGELOG.md 📝 Documentation +2/-0

Document GPT4All removal in changelog

CHANGELOG.md

qodo-free-for-open-source-projects · 2026-04-03T12:54:26Z

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (1) 📎 Requirement gaps (0) 🎨 UX Issues (0)

📘\ ⚙ Maintainability (1)

1. ~~GPT4ALL removal breaks valueOf~~ ☑ 📘 ☼

Description

AiProvider.GPT4ALL was removed, but preferences are still parsed via AiProvider.valueOf(...),
which will throw if a user has AI_PROVIDER=GPT4ALL stored from a previous version. This introduces
a backward-compatibility break that can prevent JabRef from starting or loading AI preferences for
existing users.

Code

jablib/src/main/java/org/jabref/model/ai/AiProvider.java[R6-10]

OPEN_AI("OpenAI (or API compatible)", "https://api.openai.com/v1", "https://openai.com/policies/privacy-policy/"),
MISTRAL_AI("Mistral AI", "https://api.mistral.ai/v1", "https://mistral.ai/terms/#privacy-policy"),
GEMINI("Gemini", "https://generativelanguage.googleapis.com/v1beta/", "https://ai.google.dev/gemini-api/terms"),
-    HUGGING_FACE("Hugging Face", "https://router.huggingface.co/v1", "https://huggingface.co/privacy"),
-    GPT4ALL("GPT4All", "http://localhost:4891/v1", "https://www.nomic.ai/gpt4all/legal/privacy-policy");
+    HUGGING_FACE("Hugging Face", "https://router.huggingface.co/v1", "https://huggingface.co/privacy");

Evidence
The PR removes the GPT4ALL enum constant, while the preferences loader still calls
AiProvider.valueOf(get(AI_PROVIDER)); if the stored value is GPT4ALL, valueOf will fail at
runtime. This violates the backward-compatibility requirement unless migration/fallback handling is
added.
AGENTS.md
jablib/src/main/java/org/jabref/model/ai/AiProvider.java[6-10]
jablib/src/main/java/org/jabref/logic/preferences/JabRefCliPreferences.java[1946-1953]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
Removing `AiProvider.GPT4ALL` can break existing user installations if their stored preference `AI_PROVIDER` is still `GPT4ALL`, because `AiProvider.valueOf(...)` will throw.
## Issue Context
The PR removes the provider, but existing preferences may still contain `GPT4ALL`. JabRef should gracefully migrate or fall back (e.g., switch to `OPEN_AI` provider with a sensible default), instead of failing.
## Fix Focus Areas
- jablib/src/main/java/org/jabref/model/ai/AiProvider.java[6-10]
- jablib/src/main/java/org/jabref/logic/preferences/JabRefCliPreferences.java[1946-1953]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

2. Extra blank line in changelog 📘 ⚙

Description

An extra blank line was added after the new ### Removed bullet, which breaks the
no-extra-blank-lines formatting rule for CHANGELOG.md. This can lead to inconsistent release note
formatting.

Code

CHANGELOG.md[R84-85]

+- We removed GPT4All as AI-provider as this project is currently unmaintained and does not receive any security updates [#15439](https://github.com/JabRef/jabref/pull/15439)
+

Evidence

The compliance checklist requires CHANGELOG.md changes to avoid extra blank lines; the added empty
line after the new bullet introduces additional spacing before the next version header.

AGENTS.md
CHANGELOG.md[84-86]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
`CHANGELOG.md` contains an extra blank line after the newly added bullet under `### Removed`.
## Issue Context
The repository formatting rule for `CHANGELOG.md` disallows extra blank lines.
## Fix Focus Areas
- CHANGELOG.md[84-86]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

ⓘ The new review experience is currently in Beta. Learn more

InAnYan · 2026-04-03T13:35:14Z

I don't know how to fix Jbang tests(

But I think I'll fix that problem with .valueof in the next PR

ThiloteE · 2026-04-03T18:41:35Z

Current blocker:

2026-04-03 20:37:13 [JavaFX Application Thread] org.jabref.gui.JabRefGUI.start()
ERROR: Error during initialization: java.lang.IllegalArgumentException: No enum constant org.jabref.model.ai.AiProvider.GPT4ALL
        at java.base/java.lang.Enum.valueOf(Enum.java:293)
        at org.jabref.jablib/org.jabref.model.ai.AiProvider.valueOf(AiProvider.java:5)
        at org.jabref.jablib/org.jabref.logic.preferences.JabRefCliPreferences.getAiPreferences(JabRefCliPreferences.java:1952)
        at org.jabref/org.jabref.gui.JabRefGUI.initialize(JabRefGUI.java:232)
        at org.jabref/org.jabref.gui.JabRefGUI.start(JabRefGUI.java:114)
        at javafx.graphics@26/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$4(LauncherImpl.java:845
        at javafx.graphics@26/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$0(PlatformImpl.java:449)
        at javafx.graphics@26/com.sun.javafx.application.PlatformImpl.lambda$runLater$0(PlatformImpl.java:424)
        at javafx.graphics@26/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
        at javafx.graphics@26/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at javafx.graphics@26/com.sun.glass.ui.win.WinApplication.lambda$runLoop$0(WinApplication.java:173)
        at java.base/java.lang.Thread.run(Thread.java:1474)
Exception in Application start method
2026-04-03 20:37:15 [] org.jabref.gui.JabRefGUI.lambda$stop$1()
ERROR: Unable to close AI service: java.lang.NullPointerException: Cannot invoke "org.jabref.logic.ai.AiService.close()" because "org.jabref.gui.JabRefGUI.aiService" is null
        at org.jabref/org.jabref.gui.JabRefGUI.lambda$stop$1(JabRefGUI.java:502)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328)
        at java.base/java.util.concurrent.ThreadPerTaskExecutor$ThreadBoundFuture.run(ThreadPerTaskExecutor.java:323)
        at java.base/java.lang.VirtualThread.run(VirtualThread.java:456)

Edit: This was the error that triggered when I had GPT4All selected as provider while trying to run this PR.

Siedlerchr · 2026-04-03T18:55:46Z

You need a preferences migration to replace GPT4All if it was in the preferences

calixtus · 2026-04-03T21:04:30Z

Na, just made a default to fallback to

calixtus · 2026-04-03T21:06:24Z

Will you fix JBang in a follow up PR?

Tried to repoduce on my local machine, but had no success. Think we need to ask @koppor here.

InAnYan · 2026-04-04T03:46:59Z

Current blocker:

Details

```java

2026-04-03 20:37:13 [JavaFX Application Thread] org.jabref.gui.JabRefGUI.start()

ERROR: Error during initialization: java.lang.IllegalArgumentException: No enum constant org.jabref.model.ai.AiProvider.GPT4ALL

    at java.base/java.lang.Enum.valueOf(Enum.java:293)

    at org.jabref.jablib/org.jabref.model.ai.AiProvider.valueOf(AiProvider.java:5)

    at org.jabref.jablib/org.jabref.logic.preferences.JabRefCliPreferences.getAiPreferences(JabRefCliPreferences.java:1952)

    at org.jabref/org.jabref.gui.JabRefGUI.initialize(JabRefGUI.java:232)

    at org.jabref/org.jabref.gui.JabRefGUI.start(JabRefGUI.java:114)

    at javafx.graphics@26/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$4(LauncherImpl.java:845

    at javafx.graphics@26/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$0(PlatformImpl.java:449)

    at javafx.graphics@26/com.sun.javafx.application.PlatformImpl.lambda$runLater$0(PlatformImpl.java:424)

    at javafx.graphics@26/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)

    at javafx.graphics@26/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)

    at javafx.graphics@26/com.sun.glass.ui.win.WinApplication.lambda$runLoop$0(WinApplication.java:173)

    at java.base/java.lang.Thread.run(Thread.java:1474)

Exception in Application start method

2026-04-03 20:37:15 [] org.jabref.gui.JabRefGUI.lambda$stop$1()

ERROR: Unable to close AI service: java.lang.NullPointerException: Cannot invoke "org.jabref.logic.ai.AiService.close()" because "org.jabref.gui.JabRefGUI.aiService" is null

    at org.jabref/org.jabref.gui.JabRefGUI.lambda$stop$1(JabRefGUI.java:502)

    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)

    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328)

    at java.base/java.util.concurrent.ThreadPerTaskExecutor$ThreadBoundFuture.run(ThreadPerTaskExecutor.java:323)

    at java.base/java.lang.VirtualThread.run(VirtualThread.java:456)




Edit: This was the error that triggered when I had GPT4All selected as provider while trying to run this PR.
</p>
</details>

I think this is exactly what qodo was warning about.

And I agree with Carl's approach, I would do the same

…teE-2026-03-28-RemoveGPT4All # Conflicts: # jabgui/src/main/java/org/jabref/gui/preferences/ai/AiTab.java # jablib/src/main/java/org/jabref/logic/ai/AiDefaultPreferences.java

calixtus · 2026-04-05T21:29:10Z

In private chat @koppor suggested Jbang issue might be a workflow related issue. Can be ignored in PR.
So lets move forward here.

* Removes GPT4All as AI provider from User Documentation * Follow up to JabRef/jabref#15439

InAnYan · 2026-04-06T19:04:20Z

I ran a JBang script and it worked without errors

ThiloteE added 10 commits March 28, 2026 18:10

Remove from PrivacyNoticeComponent.java

b5efe4a

Remove from AiTab.java - Remember: How to deactivate API key

58d8ec8

Remove from AiTabViewModel.java

5503a51

delete Gpt4AllModel.java

0032190

Remove from JabRefChatLanguageModel.java

69e540c

Remove from AiDefaultPreferences.java

b22ea87

Remove from AiPreferences.java

aa7ff3b

Remove from JabRefCliPreferences.java

da098fa

Remove from AiProvider.java

27d1542

Add preliminary CHANGELOG.md

15b0acd

ThiloteE changed the title ~~Thilote e 2026 03 28 remove gpt4 all~~ Remove GP4All as AI-Provider Mar 28, 2026

ThiloteE added 2 commits March 28, 2026 20:17

Update CHANGELOG.md

fa0bace

Update CHANGELOG.md

c2c7219

github-actions Bot added the status: changes-required Pull requests that are not yet complete label Mar 28, 2026

ThiloteE mentioned this pull request Mar 28, 2026

Support for server APIs of apps specialised in local LLMs #11872

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InAnYan requested changes Mar 28, 2026

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ThiloteE changed the title ~~Remove GP4All as AI-Provider~~ Remove GPT4All as AI-Provider Mar 29, 2026

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