lm-sys / lm-sys/FastChat

Unstable results on MT-bench

Open
#2,969 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Python
Stars
39.5k
Forks
4.8k
PR merge metrics
No merged PRs in 30d

Description

In the MT-bench evaluation code, the temperature of gpt4 is set to 0, but everytime I run gen_judgment.py, I get a different score for the same model answer file. The difference can be as large as 0.2. I worder if this is normal.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the MT-bench evaluation code in gen_judgment.py and run it repeatedly on the same model answer file to reproduce the score variation. Trace how the GPT-4 temperature setting is applied and determine whether repeated runs should be stable; done means explaining the variation or making the results consistent and verifying the behavior across repeated runs.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
machine-learning
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.