# Anthropic's Sonnet 5.5 Holds Price While Cutting Cost per Task, Matching Google's New Frontier Rate

The model stays at $2 and $10 per million input and output tokens, runs more than 30% faster, and posts 81.3% on SWE-bench Pro against Sonnet 5's 63.2%.

- Published: 2026-10-01T06:20:51.871Z
- Canonical: https://polylog.news/ai/2026-10-01/anthropic-s-sonnet-5-5-holds-price-while-cutting-cost-per-ta
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Anthropic News](https://www.anthropic.com/claude-sonnet-5-5), [Polylog editors](https://polylog.news)

Anthropic released Claude Sonnet 5.5 on September 28, describing it as a clear upgrade over Sonnet 5 that runs more than 30% faster and costs up to 30% less for most work. The list price did not move. Input stays at $2 per million tokens an…

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