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Claude Sonnet 4.6: Approaching Opus at Half the Cost

Anthropic's Sonnet 4.6 narrows the gap to Opus on agentic tasks, leads computer use benchmarks, and ships with a beta million-token context window. Here's what actually changed.

February 19, 2026•6 min read

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Anthropic Sonnet 4.5 in Claude Code

October 3, 2025·7 min read

7 min read

Anthropic's Claude Sonnet 4.5 isn't just another model increment. The company claims they've observed it maintaining focus for more than 30 hours on complex multi-step tasks.

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SONNET

Claude Sonnet 4.6: Approaching Opus at Half the Cost

Anthropic Sonnet 4.5 in Claude Code

Get Smarter About AI Dev

SONNET

Claude Sonnet 4.6: Approaching Opus at Half the Cost

Anthropic Sonnet 4.5 in Claude Code

Get Smarter About AI Dev