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[GH-ISSUE #4275] Degraded accuracy when using the nomic-embed-text (v1.5) model with Ollama versions 0.1.32 and 0.1.33 #2669

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opened 2026-04-12 13:00:15 -05:00 by GiteaMirror · 2 comments
GiteaMirror commented 2026-04-12 13:00:15 -05:00
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Originally created by @Ganesh1030 on GitHub (May 9, 2024).
Original GitHub issue: https://github.com/ollama/ollama/issues/4275

What is the issue?

We have an application where we are training the CSV file and using the following things for it:.

  • 'nomic-embed-text(v1.5) model
  •  chromadb
  •  ollama(0.1.31)
     
    At runtime, we are using'similarity_search' and getting good accuracy with ollama version 0.1.31, but when we upgrade ollama version to 0.1.32 or 0.1.33, accuracy is downgraded.
     
    Can anyone please confirm it's an know issue or bug or we are missing something?

OS

macOS

GPU

No response

CPU

No response

Ollama version

0.1.32 and 0.1.33

Originally created by @Ganesh1030 on GitHub (May 9, 2024). Original GitHub issue: https://github.com/ollama/ollama/issues/4275 ### What is the issue? We have an application where we are training the CSV file and using the following things for it:. - 'nomic-embed-text(v1.5) model -  chromadb -  ollama(0.1.31)   At runtime, we are using'similarity_search' and getting good accuracy with ollama version 0.1.31, but when we upgrade ollama version to 0.1.32 or 0.1.33, accuracy is downgraded.   Can anyone please confirm it's an know issue or bug or we are missing something? ### OS macOS ### GPU _No response_ ### CPU _No response_ ### Ollama version 0.1.32 and 0.1.33
GiteaMirror added the bug label 2026-04-12 13:00:15 -05:00
GiteaMirror commented 2026-04-12 13:00:16 -05:00
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@jmorganca commented on GitHub (Jun 25, 2024):

Hi there, this should be fixed now. But let me know if you're still seeing the issue.

<!-- gh-comment-id:2189445851 --> @jmorganca commented on GitHub (Jun 25, 2024): Hi there, this should be fixed now. But let me know if you're still seeing the issue.
GiteaMirror commented 2026-04-12 13:00:17 -05:00
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@Ganesh1030 commented on GitHub (Jun 26, 2024):

Thanks. tested with ollama version 0.1.45 and it's fixed now.

I think that it's fixed in 0.1.43. right?
https://github.com/ollama/ollama/releases/tag/v0.1.43
What's Changed
Fixed issue where embedding vectors resulting from /api/embeddings would not be accurate

<!-- gh-comment-id:2190760316 --> @Ganesh1030 commented on GitHub (Jun 26, 2024): Thanks. tested with ollama version 0.1.45 and it's fixed now. I think that it's fixed in 0.1.43. right? https://github.com/ollama/ollama/releases/tag/v0.1.43 What's Changed **Fixed issue where embedding vectors resulting from /api/embeddings would not be accurate**
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