5 hours ago
- Claude Opus 5 is a new model from Anthropic, offering near-frontier intelligence at half the price of Claude Fable 5.
- It achieves state-of-the-art results on coding and knowledge work benchmarks like Frontier-Bench and GDPval-AA, though lags behind Mythos 5 on cybersecurity.
- Opus 5 is designed for everyday use, with improved efficiency and cost-effectiveness compared to its predecessor Opus 4.8.
- It excels in software engineering, knowledge work, and scientific research tasks, often surpassing other models at lower cost.
- The model demonstrates strong agency and thoroughness, such as writing its own computer vision pipeline to solve a task and fixing bugs missed by human patches.
- Early-access customers report significant improvements in areas like financial modeling, legal work, code review, and agentic workflows.
- Opus 5 is highly aligned with safety principles, showing low rates of deceptive behavior and susceptibility to misuse.
- It includes safeguards for cybersecurity and biology, with automatic fallbacks and a Cyber Verification Program for enterprises.
- Opus 5 is available today at $5 per million input tokens and $25 per million output tokens, with a Fast mode option.