Get the latest tech news

New Claude Model Runs 30-Hour Marathon To Create 11,000-Line Slack Clone


Anthropic's Claude Sonnet 4.5 ran autonomously for 30 hours to build a chat application similar to Slack or Teams, generating approximately 11,000 lines of code before stopping upon task completion. The model, announced today, marks a significant leap from the company's Opus 4 model, which ran for s...

Anthropic's Claude Sonnet 4.5 ran autonomously for 30 hours to build a chat application similar to Slack or Teams, generating approximately 11,000 lines of code before stopping upon task completion. Beta-tester Canva deployed the model for complex engineering tasks in its codebase and product features. Anthropic paired the release with virtual machines, memory, context management, and multi-agent support tools, enabling developers to build their own AI agents using the same building blocks that power Claude Code.

Get the Android app

Or read this on Slashdot

Read more on:

Photo of new Claude model

new Claude model

Photo of line slack

line slack

Photo of hour marathon

hour marathon

Related news:

News photo

Anthropic’s new Claude model can think both fast and slow