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[Mistral 7B mistral-7b-instruct-v0.1.Q8_0.gguf] Wrong text "quoted" while presented as real #131

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@SINAPSA-IC

Description

@SINAPSA-IC

Hello.

I don't know if this is a bug or a feature, however I've expected More.

  • Software:
    -- GPT4All 2.7.1, working on CPU only
    -- Local Documents collections: none selected
  • LLM:
    -- Mistral Instruct: mistral-7b-instruct-v0.1.Q8_0.gguf
    -- Temperature: 0.1
    -- Context Length: 16384
    -- Max Length: 4096
    -- Top P: 0.6
    -- Top K; 50
    -- Repeat Penalty: 1.1
    -- Repeat Penalty Tokens: 64
    -- GPU Layers: 32
    -- System Prompt:
    If you cannot answer to something, you say so and explain why.
    -- Prompt Template:
    [INST] %1 [/INST]

Prompt:
tell me the precise (exact) lyrics of the song "All Along The Watchtower" by Bob Dylan.

Response (TLDR: wrong lyrics, except the first line of Verse 1, Verse 2, Bridge and the last Chorus)

Verse 1:
There must be some kind of way outta here
Some kind of way to make it right
Some kind of way to find a faith
To carry on through the darkest night

Chorus:
All along the watchtower
Something's been going on
All along the watchtower
A battle's been fought

Verse 2:
There must be some kind of way outta here
Some kind of way to make it right
Some kind of way to find a faith
To carry on through the darkest night

Chorus:
All along the watchtower
Something's been going on
All along the watchtower
A battle's been fought

Bridge:
There must be some kind of way outta here
Some kind of way to make it right
Some kind of way to find a faith
To carry on through the darkest night

Chorus:
All along the watchtower
Something's been going on
All along the watchtower
A battle's been fought

Outro:
There must be some kind of way outta here
Some kind of way to make it right
Some kind of way to find a faith
To carry on through the darkest night

The real lyrics can be found at:
https://genius.com/Bob-dylan-all-along-the-watchtower-lyrics

The same hallucinatory behavior was encountered when Prompting the LLM to quote

  • the second-to-last paragraph of "Moby Dick" by Herman Melville, the response being a quote from (I may misremember a word or two here) : "I have seen the angel in the marble and I carved until I set him free", the sculptor said, "and then I put it back"- a quote which, however inspirational and worthy of an artist, cannot be found on the Internet.
  • the first paragraph of "Great Expectations" by Charles Dickens, the response being a quote from "A Tale Of Two Cities" also by Charles Dickens: "It was the best of times, it was the worst of times [...]"

I am curious:

  • can this LLM quote a text, or can it only derive something from it, including hallucinations?
  • if the LLM cannot quote a text, then why did it respond without being so instructed?
  • how reliable is this particular LLM, regarding the information it's been trained on?

Thank you.

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