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Claude Opus 4.5 API
Nov 26, 2025
claude-opus-4-5

Claude Opus 4.5 API

Claude Opus 4.5 positioned as a hybrid-reasoning, agent-oriented model optimized for long-horizon coding, complex office automation (Excel/PowerPoint automation), multi-tool agent workflows and long-context workflows. Claude Opus 4.5 emphasizes token efficiency, long-horizon coding and agentic tool use with an effort knob to tune tradeoffs; default 200K context with higher long-context options available
How to Use Claude Opus 4.5 API
Dec 2, 2025
claude-opus-4-5

How to Use Claude Opus 4.5 API

Anthropic released Claude Opus 4.5 in late November 2025 as a more capable, more efficient Opus-class model targeted at professional software engineering,
How Much Does Claude Opus 4.5 Cost — and is it worth it?
Dec 2, 2025
claude-opus-4-5

How Much Does Claude Opus 4.5 Cost — and is it worth it?

Claude Opus 4.5 is Anthropic’s newest “Opus-class” model (released in late November 2025). It’s positioned as a top-tier model for professional software
How to use Claude Opus 4.5 with Cursor and Claude Code — a in-depth guide
Dec 2, 2025
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claude-opus-4-5

How to use Claude Opus 4.5 with Cursor and Claude Code — a in-depth guide

Anthropic’s Claude Opus 4.5 is the company’s newest flagship model focused on coding, agentic workflows, and advanced “computer use.” This article explains