Redwood and Anthropic introduce Conceptual Reasoning Index; Opus 5 scores 73.6
dl_weekly · x · 2026-08-25
Redwood Research and Anthropic have introduced the Conceptual Reasoning Index (CRI), an aggregate of three benchmarks designed to evaluate model reasoning on tasks lacking empirical feedback loops, such as philosophical argumentation and AI futurism. CRI focuses on measuring argumentation on unverifiable questions, a capability crucial for AI-assisted risk mitigation. In current rankings, the top scorer, Opus 5, achieved 73.6 against an estimated ceiling of 91. Access to the primary dataset, LMCA, is available upon request.
More from Research
- Post-Training AI book posts draft chapters: SFT and GRPO in a few hundred lines — ben_burtenshaw · 2026-08-25
- Startup unveils "Physical AI": Trillion-param 4D physics simulation — mark_k · 2026-08-25
- Annals of Internal Medicine Warns on 'Peer-Unreviewed' Social Media — EricTopol · 2026-08-25
- Anthropic open-sources dataset of Claude-designed protein binders — huggingface · 2026-08-25
- Seurat 5.6 Beta: Core Workflows Rewritten with Coding Agents — arjunrajlab · 2026-08-25
- Peking U proposes Laws of Context Allocation for RAG orchestration — PekingUniversity · 2026-08-25