Still in the API at $5/$25 per million tokens, but newer Opus versions have replaced it, so mostly relevant to existing builds.

Kenning's take

What it does

Claude Opus 4.5 was Anthropic's top model when it launched in November 2025, built for coding, agents and computer use, and improved on deep research and work with slides and spreadsheets. It cut Opus pricing to $5 per million input tokens and $25 per million output tokens. It remains available in the API, though newer Opus versions have since replaced it as the default.

• Agentic coding and computer use
• Better handling of slides and spreadsheets
• API model claude-opus-4-5-20251101
• $5/$25 per million tokens, down from earlier Opus pricing

Who it suits. Developers who have built on this specific model version and want to know its status.

Key facts

Category

AI models

Part of

Claude

Made by

Anthropic

Based in

United States

Released

24 November 2025

How to get it

still available in the Claude API and on Amazon Bedrock, Google Cloud and Microsoft Foundry (listed as active on Anthropic's deprecation page); in the Claude apps it has been followed by newer models

Works on

API, Amazon Bedrock, Google Cloud Vertex AI, Microsoft Foundry

In the UK

Yes

API price

$5 per million input tokens, $25 per million output tokens

FAQ

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.