Can AI Replace the
Peer Reviewer (Yet)?
Da Huang, Avner Kalay, James Schallheim
Discussion by Alejandro Lopez-Lira, University of Florida
22nd Annual WashU CFAR Finance Conference · Session 6: AI and Measurement in Finance · November 2026
What the paper does
No conference in 2021. Tables 2 and 6, Figure 3. Top and bottom: mean human score at most 1.5 or at least 4.0. Middle: 73% of papers.
I like this paper a lot
Rising paper supply: Section 1. Reruns, CanAIReview.com: Section 2.4. Committee scores: Section 2.1. ChatGPT launched November 2022.
Why I care
If AI can tell a good paper,
we can train it to write one
- Writing drafts is already cheap
- Scoring papers well is the hard part
- This paper tests AI scoring
ZeroPaper already does this
github.com/alejandroll10/zeropaper
github.com/alejandroll10/zeropaper
Lopez-Lira · Discussion of Huang, Kalay, Schallheim
Lower bounds on
detected ability
Opening of the prompt given to every model, abridged (Appendix C2; rubric follows). AI rarely gives a 1 or a 5 (Table 2).
Failing to elicit a skill
does not prove it is absent
- One success proves the skill exists
- A study can try only a few setups
- We learn what researchers could elicit
Prompt search: Opus 4.7 (main study: ten models). Sections 2.2 and 2.3, Table 3. Same logic as Remark 1 in Lopez-Lira, Tang, Zhu (2025).
One small change moved
the results a lot
- Model lists weaknesses and strengths first
- Mismatch with humans falls from 0.85 to 0.45
- Untried prompts could do better
Opus 4.7, same instructions, same 157 papers. Mismatch = sum of gaps in score shares (L1), 0.85 to 0.45. Table 3.
Memorization
A memorization test gives
only a lower bound
- Model says it remembers and names the title
- Removing author names does not stop recognition
- Few papers appeared after the models' training
Opus 4.7 probe: Section 4.2. Post-cutoff tests: Section 4.1. Lopez-Lira, Tang, Zhu (2025), arXiv:2504.14765.
The papers AI recognizes are
the famous, highly cited ones
- Dropping them halves AI's link in the middle
- Significant at 5% in 9 models, then in 3
- So the test cannot separate memory from fame
Opus 4.7 recognizes 11%, mostly top-journal papers. Middle: mean human score 1.5 to 4. Average AI effect 0.56 to 0.27. Table 10.
Even if AI memorized outcomes, human
scores predict citations better at the top
- Human edge in all ten, significant in eight
- Memorization could only inflate AI
- So the human edge is understated
Absolute effects on future citations. Top: mean human score at most 1.5. Light bars: not significant at 10%. Opus 4.5: AI sign wrong. Table 6.
The right benchmark
There may be no single right score
- Two reviewers correlate at only 0.19
- The paper reads disagreement as taste
- So the target depends on whose taste
Weight on the shared view is 0.33. Its share of score variance is 0.19, the reviewer correlation. Section 3.2, Welch (2014); Table 2.
Each result uses a different benchmark
| Result | AI is compared with | Concern |
|---|---|---|
| Score spread | Spread of human scores | Single reviews are noisier than consensus |
| Agreement | One human reviewer | At most 0.43 with one human |
| Program choice | Ten program papers a year | Committee picks reflect its own taste |
| Citation test | Future citations | A proxy, for AI and humans alike |
0.43 is the square root of 0.189. Footnote 2: citations are "admittedly not a conference reviewer's stated task," but the comparison is fair. Tables 2, 4, 5, 6.
Suggestions
Give the AI the reviewers' task
- Few 1s and 5s may come from seeing one paper
- Ask the AI to rank a batch
- Compare with reviewers' own rankings
Reviewers rank all papers they receive, and the paper does not use these rankings (Section 2.1). Each AI review is a single isolated call (Section 2.2).
Two changes to the citation test
Which score better predicts a paper's later citations?
| The paper | Try | |
|---|---|---|
| AI score | One AI review | Average of several |
| AI compared with | Mean of two reviewers | Each reviewer's record |
Tables 5 and 6. Section 4.3 reruns check consistency only. The paper does not use reviewer identity.
Conclusion
In this test, AI cannot yet replace reviewers,
but it can complement them.
- Results are lower bounds on AI's ability
- Memorization cannot explain the human edge
Lower bounds: Section 2.3, Table 3. Memorization and the human edge: Table 6, Section 4.1.
For reproducibility, report the settings
| Reported | Not reported |
|---|---|
| Full prompt and output fields | Thinking on or off, effort level |
| One call per paper, no tools | Temperature, seed, output limit |
| Model names and release dates | Exact model version strings |
| Fixed protocol for new models | Text extraction tool and code |
Prompt and output fields: Appendix C2. Protocol: Sections 2.2 and 2.4. None of the not-reported items appears in the paper.