Blueprint-Bench 2 (Fable/Mythos) — leaderboard
Metric: Score (%). Source: www-cdn.anthropic.com. 6 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Fable 5 | 38.6 |
| 2 | Claude Mythos 5 | 38.6 |
| 3 | GPT-5.5 | 36.2 |
| 4 | Gemini 3.5 Flash | 33.6 |
| 5 | Gemini 3.1 Pro (Preview) | 26.5 |
| 6 | Claude Opus 4.8 | 14.5 |
Interactive version: theaggregate.ai/benchmark?slug=blueprint-bench-2-fable-mythos · How the rankings work · Data refreshed daily, snapshot 2026-07-22.