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[GH-ISSUE #4620] Llava 1.6 34B fp16: refuses to answer questions on forms or hallucinates, when official Llava 1.6 34B demo does answer them perfectly #2902

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opened 2026-04-12 13:15:29 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-12 13:15:29 -05:00
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Originally created by @ChristianWeyer on GitHub (May 24, 2024).
Original GitHub issue: https://github.com/ollama/ollama/issues/4620

What is the issue?

Hey all,

I am using https://ollama.com/library/llava:34b-v1.6-fp16.
When asking questions about data in a form (see attached, it is a public sample), the model refuses to answer them or it hallucinates.

ollama run llava:34b-v1.6-fp16
>>> How is the ending balance? ./demo.png
Added image '.demo.png'
The ending balance on the credit card statement shown in the image is €7,531.25. This is calculated by subtracting
all charges from your total amount available to spend (or "Amount Available") and adding any payments you've made or
credits received during that time period.

However, when using the exact same form image file here: https://llava.hliu.cc - everything works perfect and it answers the question with the correct data from the field in the form: € 4.728,33.

There has to be something very different in the quant (and maybe prompt) provided by Ollama.
Any ideas?

credit-card-statement

OS

macOS

GPU

Apple

CPU

Apple

Ollama version

0.1.38

Originally created by @ChristianWeyer on GitHub (May 24, 2024). Original GitHub issue: https://github.com/ollama/ollama/issues/4620 ### What is the issue? Hey all, I am using https://ollama.com/library/llava:34b-v1.6-fp16. When asking questions about data in a form (see attached, it is a public sample), the model refuses to answer them or it hallucinates. ``` ollama run llava:34b-v1.6-fp16 >>> How is the ending balance? ./demo.png Added image '.demo.png' The ending balance on the credit card statement shown in the image is €7,531.25. This is calculated by subtracting all charges from your total amount available to spend (or "Amount Available") and adding any payments you've made or credits received during that time period. ``` However, when using the exact same form image file here: https://llava.hliu.cc - everything works perfect and it answers the question with the correct data from the field in the form: € 4.728,33. There has to be something very different in the quant (and maybe prompt) provided by Ollama. Any ideas? ![credit-card-statement](https://github.com/ollama/ollama/assets/888718/b0b5a016-bf03-4c3a-ab3a-a4c4b95e1d9c) ### OS macOS ### GPU Apple ### CPU Apple ### Ollama version 0.1.38
GiteaMirror added the bug label 2026-04-12 13:15:29 -05:00
GiteaMirror commented 2026-04-12 13:15:30 -05:00
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@ChristianWeyer commented on GitHub (May 24, 2024):

When using Open WebUI with the same model, I get this (wrong) result:

Screenshot 2024-05-24 at 21 36 49
<!-- gh-comment-id:2130243432 --> @ChristianWeyer commented on GitHub (May 24, 2024): When using Open WebUI with the same model, I get this (wrong) result: <img width="1244" alt="Screenshot 2024-05-24 at 21 36 49" src="https://github.com/ollama/ollama/assets/888718/5813b79a-8038-448e-99a9-2e561f76b963">
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