Deep DiveAIAnthropic

Anthropic launches Claude Opus 5.5 and cuts flagship prices

TechgainAuthor

7 min read · 23 September 2026

Anthropic released Claude Opus 5.5 on September 22 as the first model in a new Claude 5.5 family, matching its top-tier Fable 5.1 on most work while cutting list prices 20 percent and the cost of typical workloads by around 40 percent.

The short version

Opus 5.5 is priced at $4 input and $20 output per million tokens
Cache reads fall 60 percent to $0.20 per million tokens
Anthropic says it leads Terminal-Bench 4.0 at 66.4 percent
Five-hour usage limits rise on Pro, Max and Team plans
Sonnet 5.5 and Haiku 5.5 are promised in the coming weeks

Sources (5)

www.anthropic.com/claude-opus-5-5
techcrunch.com/2026/09/22/anthropic-releases-opus-5-5-with-lower-prices-and-fable-level-performance
ibtimes.co.uk/anthropic-claude-opus-5-5-price-cut-safety-1821320
iclarified.com/102348/anthropic-launches-claude-opus-55-with-lower-prices-and-faster-output
m.economictimes.com/tech/artificial-intelligence/anthropic-unveils-claude-opus-5-5/articleshow/134417201.cms

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Anthropic launches Claude Opus 5.5 and cuts flagship prices

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