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[BUG] Bad token estimation in Prompty #3809

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ianchi opened this issue Oct 11, 2024 · 2 comments · May be fixed by #3821
Closed

[BUG] Bad token estimation in Prompty #3809

ianchi opened this issue Oct 11, 2024 · 2 comments · May be fixed by #3821
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bug Something isn't working no-recent-activity There has been no recent activity on this issue/pull request

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@ianchi
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ianchi commented Oct 11, 2024

Describe the bug
Token estimation is wrong, as it doesn't take into account the functions/tools definition as part of the prompt.
In cases with heavy use of tools this can make a big diference and make you take a wrong decision regarding the token limit of a request.

How To Reproduce the bug
Steps to reproduce the behavior, how frequent can you experience the bug:

  1. Create a prompty file with a large tools definition
  2. Make an estimation with a small question
  3. compare with the actual token consumption reported by oai response

Expected behavior
A clear and concise description of what you expected to happen.

  • Add an additional function to also estimate the tools definition token consumption

Screenshots
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Running Information(please complete the following information):

  • Promptflow Package Version using pf -v: [e.g. 0.0.102309906]
  • Operating System: [e.g. Ubuntu 20.04, Windows 11]: Debian
  • Python Version using python --version: [e.g. python==3.10.12]: 3.11.5

Additional context
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@ianchi ianchi added the bug Something isn't working label Oct 11, 2024
@ianchi
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ianchi commented Oct 13, 2024 •
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Additionally token from messages is also incorrect.
It doesn't take into account when an assistant's message has tool_calls

And when using Azure OpenAI the wrong model type may be selected.
num_tokens_from_messages expects the model as string using one of OpenAI model's labels, but in this case the azure_deployment is used. This is a user generated label and not necessarily a valid model name, so the token count raises error and can´t be used.

@ianchi ianchi mentioned this issue Oct 19, 2024
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Hi, we're sending this friendly reminder because we haven't heard back from you in 30 days. We need more information about this issue to help address it. Please be sure to give us your input. If we don't hear back from you within 7 days of this comment, the issue will be automatically closed. Thank you!

@github-actions github-actions bot added the no-recent-activity There has been no recent activity on this issue/pull request label Nov 12, 2024
@github-actions github-actions bot closed this as not planned Won't fix, can't repro, duplicate, stale Nov 19, 2024
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prompty: improve token count estimation ianchi/promptflow
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@ianchi