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Claude 4 Release

Era: LLM Era · 2020s–Present

Anthropic released Claude Opus 4 and Claude Sonnet 4, hybrid models that offer near-instant responses and extended thinking. Both could use tools such as web search during extended thinking, a capability then in beta, and Anthropic reported gains in coding, reasoning and long-running agentic tasks.

Anthropic

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Anthropic

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  1. Introducing Claude 4

    Anthropic · Source type: Primary announcement

    Anthropic announced Claude Opus 4 and Sonnet 4.

    Published: ·Accessed: