---
type: Article
title: "Claude Sonnet 5 Is the New Default, Priced Below Opus 4.8"
description: "Claude Sonnet 5 is Anthropic's new default Claude model: agentic, close to Opus 4.8 in capability, and priced well below it through August 31."
resource: "https://yippy.com/t/y1umf7hdgdph59f8qqbg/"
locale: en
published: "2026-07-07T14:37:52.716Z"
timestamp: "2026-08-02T16:26:38.038Z"
tags:
  - "y1qzystu96styt2dxkb9"
  - "y1md9eumm8pa5kcteqnd"
  - "y1ctec9755edtys5g4nb"
entities:
  - "https://www.anthropic.com"
  - "https://www.anthropic.com/news/claude-fable-5-mythos-5"
---

# Claude Sonnet 5 Is the New Default, Priced Below Opus 4.8

Claude Sonnet 5 launched June 30, 2026 as Anthropic's new default model, priced at 40 to 60 percent of the Opus 4.8 rate depending on the date.

**Contents**

- What changed with Sonnet 5
- Where it sits in the family
- The price gap, worked out
- The regular price is not a hike
- Why the window before August 31 matters
- Bottom line

Full text: https://yippy.com/t/y1umf7hdgdph59f8qqbg/