# Anthropic releases faster, cheaper Sonnet 5.5

> Anthropic's new mid-tier AI model runs 30% faster than its predecessor and costs significantly less, positioning it as an everyday work assistant.
- Title: Anthropic releases faster, cheaper Sonnet 5.5 · TechCrunch
- Summary: Anthropic's new mid-tier AI model runs 30% faster than its predecessor and costs significantly less, positioning it as an everyday work assistant. Anthropic…
- Keywords: anthropic, sonnet 5.5, ai models, claude, model release, technology, startups, releases, faster, cheaper, Sonnet, TechCrunch
- Source: TechCrunch — https://techcrunch.com/2026/09/28/anthropic-releases-sonnet-5-5-which-it-calls-a-significantly-cheaper-faster-work-partner
- Author: Lucas Ropek
- Published: 2026-09-28T18:00:00+00:00
- Read time: 1 min
- Topics: anthropic, sonnet 5.5, ai models, claude, model release, technology, startups
## Anthropic launches Sonnet 5.5
Anthropic has released Sonnet 5.5, the newest version of its mid-tier AI model. The company says it will work much faster and cost significantly less than its predecessor.
## Built for everyday work tasks
Anthropic describes Sonnet 5.5 as an ideal assistant for everyday tasks, including coding and creating office documents. The model sits between Opus and Haiku in the company's hierarchy.
## Speed is the main upgrade
Anthropic claims that Sonnet 5.5 is 30% faster than its predecessor and that its rate of token burn is significantly slower. Speed is the big selling point over Sonnet 5.
## Better at coding than Opus
Anthropic's benchmarks show Sonnet 5.5 performing better than Opus 5.5 on agentic coding, likely because of its ability to spawn multiple agents without exceeding cost limits.
## New cyber safeguards apply
Sonnet 5.5 has significant cyber capabilities comparable to Opus 5. As a result, Anthropic says 5.5 is the first Sonnet model subject to the same cyber safeguards that apply to Fable and Opus.
## Haiku update coming soon
Anthropic plans to release a new version of Haiku, its smallest model, in the coming weeks, though the company did not give a firm date for the release.
## Key takeaway

Anthropic released Sonnet 5.5, a faster and cheaper version of its mid-tier AI model designed for everyday tasks like coding and document creation.