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Claude Sonnet 5.5

Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Claude Sonnet 5, runs 30%+ faster, and costs up to 30% less for most work.

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Bonnes pratiques

Perspectives

Analyses

Article
25 sept. 2026

What a task costs on Opus 5.5

Claude Code
(s'ouvre dans un nouvel onglet)
Article
24 sept. 2026

Coding sessions are longer and use more context. Claude Opus 5.5 is built with that in mind.

Our latest Opus model is priced and trained to optimize costs for how developers code now.

Claude CodeClaude Enterprise
Article
14 sept. 2026

Claude for Financial Advisors

Financial advisors can now connect Claude to the custodians, portfolio platforms, CRMs, and planning tools they depend on, along with new skills tailored to the daily work of a financial advisor.

Article
2 sept. 2026

Building commerce agents with Claude

Retailers running shopping agents on Claude have seen carts up to 35% larger and shoppers 60% more likely to complete a purchase.

Claude Platform
Article
28 août 2026

Claude for Teachers, now available for U.S. K-12 schools and districts

Starting today, Claude for Teachers is available for U.S. K-12 schools and districts as a free Enterprise offering. This includes premium Claude capabilities like teaching skills grounded in learning science and a direct connection to academic standards in all 50 states. Qualifying organizations that sign up by June 30, 2027 get a full year of free access.

Claude apps
Article
7 juil. 2026

How people are using Claude Cowork

In a sample of Claude Cowork sessions, we found that roughly half of all usage comprises “the work around the work”—tasks that are part of a broad swath of jobs, but are rarely a person’s core responsibility.

Claude Cowork