Claude Opus 4.5

Anthropic | In Edition 11, Saturday 29 Nov 2025

The call on this one

DEPLOYif you run long-horizon coding agents

SOURCE Anthropic, Introducing Claude Opus 4.5

Claude Opus 4.5 is available today on Anthropic's apps, API, and all three major cloud platforms at $5 per million input tokens and $25 per million output tokens. It leads 7 out of 8 programming languages on SWE-bench Multilingual and scores a 10.6% jump over Sonnet 4.5 on Aider Polyglot.

Added to The Deploy Log Monday 14 Sep 2026, updated Thursday 17 Sep 2026. Read Edition 11, the edition that carried it.

13 rows from Anthropic in The Deploy Log are dated on or before this one, this one included.

Before it from Anthropic: Claude in Microsoft Foundry, 7 days earlier. After it: Claude Code, 7 days later.

Week of November 24, 2025 | November 2025

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