# Anthropic Launches Claude Opus 5 at Half the Cost of Fable 5

> Anthropic released Claude Opus 5, its new flagship model, priced at half the cost of Fable 5 while extending the context window to one million tokens. The company says it posted a perfect 42 out of 42 on the 2026 International Math Olympiad and improved on coding and mathematical reasoning. The headline is really about price. Halving the cost of a frontier model, while widening the context window, is the kind of move that pushes down the economics of every application built on top of it, and it lands amid a broader race to make top-tier reasoning cheap enough to run at scale. A perfect Olympiad score is an eye-catching benchmark, though how much it says about everyday usefulness is debatable. The more consequential shift is competitive: with rivals also slashing inference prices, the frontier is increasingly being fought over on cost per token as much as raw capability, and Opus 5 is Anthropic's answer.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: Anthropic · Published Tuesday, August 11, 2026_

## Wortins' read

Anthropic released Claude Opus 5, its new flagship model, priced at half the cost of Fable 5 while extending the context window to one million tokens. The company says it posted a perfect 42 out of 42 on the 2026 International Math Olympiad and improved on coding and mathematical reasoning. The headline is really about price. Halving the cost of a frontier model, while widening the context window, is the kind of move that pushes down the economics of every application built on top of it, and it lands amid a broader race to make top-tier reasoning cheap enough to run at scale. A perfect Olympiad score is an eye-catching benchmark, though how much it says about everyday usefulness is debatable. The more consequential shift is competitive: with rivals also slashing inference prices, the frontier is increasingly being fought over on cost per token as much as raw capability, and Opus 5 is Anthropic's answer.

## Source

[Read the full story at Anthropic](https://www.anthropic.com/news/claude-opus-5)

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