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Introducing Claude Haiku 5.5
Our fastest, cheapest, and most capable small model yet. It’s designed for high-volume, cost-sensitive work.
Introducing Claude Sonnet 5.5
A clear upgrade over Sonnet 5 that runs 30% faster and costs up to 30% less for most work.
Introducing Claude Opus 5.5
Opus 5.5 performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5.
The Situation Report
A rare strain of Ebola, with no confirmed vaccine, is spreading through the east of the Democratic Republic of Congo. World health organizations are using Claude to move as fast as possible to combat it.
News
DateCategoryTitle
- 2026 Usage Policy update
- Building on our commitment to American scientific discovery
- Introducing the Anthropic Cyber Mission
- Expanding the Cyber Verification Program
- Anthropic invests $100 million to train 10,000 engineers and tackle the enterprise AI talent gap
- Barclays scales Claude to upgrade operations and improve client experience
- Claude discovers a novel enzyme system with CRISPR-like repeats
- Partnering with Accenture on embedded evaluation
- Introducing the Life Sciences Verification Program
- Developing Enterprise Frontier Safeguards with our customers