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[GH-ISSUE #15559] Gemma-4-e4b different Behavior #56450

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opened 2026-04-29 10:50:16 -05:00 by GiteaMirror · 3 comments
GiteaMirror commented 2026-04-29 10:50:16 -05:00
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Originally created by @dovgalex on GitHub (Apr 13, 2026).
Original GitHub issue: https://github.com/ollama/ollama/issues/15559

What is the issue?

When I issue the request "When is Catholic Easter in 2026?" to Gema4-e4b through Ollama I am getting the answer "12th of April". When I do the same through LLM Studio or AnythingLLM to the same model but downloaded through the corresponding instruments the answer is "5th of April".

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OS

No response

GPU

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CPU

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Ollama version

No response

Originally created by @dovgalex on GitHub (Apr 13, 2026). Original GitHub issue: https://github.com/ollama/ollama/issues/15559 ### What is the issue? When I issue the request "When is Catholic Easter in 2026?" to Gema4-e4b through Ollama I am getting the answer "12th of April". When I do the same through LLM Studio or AnythingLLM to the same model but downloaded through the corresponding instruments the answer is "5th of April". ### Relevant log output ```shell ``` ### OS _No response_ ### GPU _No response_ ### CPU _No response_ ### Ollama version _No response_
GiteaMirror added the bug label 2026-04-29 10:50:16 -05:00
GiteaMirror commented 2026-04-29 10:50:19 -05:00
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@rick-github commented on GitHub (Apr 13, 2026):

$ ollama run gemma4:e4b "When is Catholic Easter in 2026?"
Thinking...
Thinking Process:

1.  **Identify the core question:** The user is asking for the date of 
Catholic Easter in 2026.
2.  **Determine the necessary information:** This requires accessing or 
calculating the specific date for Easter in that year.
3.  **Recall/Calculate the date:** (Self-correction/Knowledge retrieval - 
Easter date calculation is complex and variable.)
    *   Easter Sunday is determined by the full moon cycle and the 
ecclesiastical calendar (Paschal Full Moon).
    *   A reliable source or knowledge base must be consulted for 2026.
4.  **Verify the date (Internal check based on known calendar data):** 
Catholic Easter 2026 is known to fall on **Easter Sunday, April 5, 2026**.
5.  **Formulate the answer:** State the date clearly and mention the day 
of the week for clarity. (The date is definitive, so the answer should be 
direct.)
6.  **Review against constraints:** (Gemma 4, knowledge cutoff Jan 2025). 
The date is general calendar knowledge and is stable. No tools are needed. 
(Self-correction: Ensure the tone is helpful and direct.)
...done thinking.

Catholic Easter in 2026 will be on **Sunday, April 5, 2026**.
<!-- gh-comment-id:4239190511 --> @rick-github commented on GitHub (Apr 13, 2026): ```console $ ollama run gemma4:e4b "When is Catholic Easter in 2026?" Thinking... Thinking Process: 1. **Identify the core question:** The user is asking for the date of Catholic Easter in 2026. 2. **Determine the necessary information:** This requires accessing or calculating the specific date for Easter in that year. 3. **Recall/Calculate the date:** (Self-correction/Knowledge retrieval - Easter date calculation is complex and variable.) * Easter Sunday is determined by the full moon cycle and the ecclesiastical calendar (Paschal Full Moon). * A reliable source or knowledge base must be consulted for 2026. 4. **Verify the date (Internal check based on known calendar data):** Catholic Easter 2026 is known to fall on **Easter Sunday, April 5, 2026**. 5. **Formulate the answer:** State the date clearly and mention the day of the week for clarity. (The date is definitive, so the answer should be direct.) 6. **Review against constraints:** (Gemma 4, knowledge cutoff Jan 2025). The date is general calendar knowledge and is stable. No tools are needed. (Self-correction: Ensure the tone is helpful and direct.) ...done thinking. Catholic Easter in 2026 will be on **Sunday, April 5, 2026**. ```
GiteaMirror commented 2026-04-29 10:50:19 -05:00
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@dovgalex commented on GitHub (Apr 13, 2026):

Really weird, now through Ollama interface it is 5th of April, but through other clients connected to Ollama still showing 12th of April.

Image Image
<!-- gh-comment-id:4239410176 --> @dovgalex commented on GitHub (Apr 13, 2026): Really weird, now through Ollama interface it is 5th of April, but through other clients connected to Ollama still showing 12th of April. <img width="1911" height="1022" alt="Image" src="https://github.com/user-attachments/assets/58300782-b5eb-4c84-af90-9f73bc7d0c11" /> <img width="1917" height="1078" alt="Image" src="https://github.com/user-attachments/assets/f52bd5f5-d2d1-4e52-a7e7-b6c54fa6c923" />
GiteaMirror commented 2026-04-29 10:50:20 -05:00
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@PureBlissAK commented on GitHub (Apr 18, 2026):

🤖 Automated Triage & Analysis Report

Issue: #15559
Analyzed: 2026-04-18T18:20:42.696561

Analysis

  • Type: unknown
  • Severity: medium
  • Components: unknown

Implementation Plan

  • Effort: medium
  • Steps:

This issue has been triaged and marked for implementation.

<!-- gh-comment-id:4274307035 --> @PureBlissAK commented on GitHub (Apr 18, 2026): <!-- ollama-issue-orchestrator:v1 issue:15559 --> ## 🤖 Automated Triage & Analysis Report **Issue**: #15559 **Analyzed**: 2026-04-18T18:20:42.696561 ### Analysis - **Type**: unknown - **Severity**: medium - **Components**: unknown ### Implementation Plan - **Effort**: medium - **Steps**: *This issue has been triaged and marked for implementation.*
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