Anthropic launches Sonnet 5.5, faster and more economical AI model

Anthropic unveils Sonnet 5.5, an optimized version of its intermediate model.

Published 6sem6 sources✓ ConfirmedMajorupdated 5sem

≈ 17sSpeed

The fact

The new model promises reduced response times and lower token consumption.

This update aims to improve accessibility of AI tools for businesses.

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Auto-synthesis from 6 media sources · identified on September 28, 2026