BrowseComp (Fable/Mythos Single-Agent) — leaderboard
Metric: Score (%). Source: www-cdn.anthropic.com. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos 5 | 88 |
| 2 | Claude Opus 4.8 | 87.9 |
| 3 | Gemini 3.1 Pro (Preview) | 85.9 |
| 4 | GPT-5.5 | 84.4 |
Interactive version: theaggregate.ai/benchmark?slug=browsecomp-fable-mythos-single-agent · How the rankings work · Data refreshed daily, snapshot 2026-07-22.