Anthropic AI R&D - LLM Training Hard Variant Average Speedup: leaderboard
Metric: Average Speedup (x). Source: www-cdn.anthropic.com. 2 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Opus 5 | 14.19 |
| 2 | Claude Mythos 5 | 8.36 |
Interactive version: theaggregate.ai/benchmark?slug=anthropic-ai-r-d-llm-training-hard-variant-average-speedup · How It Works · Data refreshed daily, snapshot 2026-09-19.