---
type: "Reference"
title: "Reference 24"
description: "Anthropic, “Introducing Claude Sonnet 4.5.” https://www.anthropic.com/news/claude-sonnet-4-5 (29 September 2025)."
resource: "https://www.anthropic.com/news/claude-sonnet-4-5"
tags: ["reference", "discontinuity-thesis"]
timestamp: "2026-06-03T09:57:19Z"
number: 24
---

# Reference 24

Anthropic, “Introducing Claude Sonnet 4.5.” https://www.anthropic.com/news/claude-sonnet-4-5 (29 September 2025).

# Related Concepts

* [Thesis](../thesis.md)
* [References index](index.md)

# Citations

[1] [https://www.anthropic.com/news/claude-sonnet-4-5](https://www.anthropic.com/news/claude-sonnet-4-5)