# BrowseComp-Plus (BrowseComp+)

> Evaluates research agents against a fixed document corpus, separately from live-web BrowseComp.

Canonical page: https://benchlm.ai/benchmarks/browsecomp-plus

- Category: [Agentic](/agentic)
- Last updated: October 29, 2026

## About BrowseComp+

- Year: 2025
- Paper: [BrowseComp-Plus: A More Fair and Transparent Evaluation Benchmark of Deep-Research Agent](https://arxiv.org/abs/2508.06600)

Inception reports Mercury 3 at 55.18 with medium reasoning. Its launch chart does not identify the corpus revision, retrieval configuration, agent harness, tool budget, or trial count. The provider result stays separate from original BrowseComp and benchmark-owner configurations.

BrowseComp+ is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Leaderboard (1 models)

| Rank | Model | Creator | Score |
|------|-------|---------|-------|
| 1 | [Mercury 3](/models/mercury-3) | Inception | 55.18% |

## FAQ

### What does BrowseComp+ measure?

Evaluates research agents against a fixed document corpus, separately from live-web BrowseComp.

### Which model scores highest on BrowseComp+?

Mercury 3 by Inception currently leads with a score of 55.18% on BrowseComp+.

### How many models are evaluated on BrowseComp+?

1 AI models have published results on BrowseComp+ in the BenchLM catalog.

### Does BrowseComp+ affect BenchLM's overall score?

Not directly. BrowseComp+ is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.