🔥 Trending event · 5 sources

Anthropic launches Claude Opus 5.5 with lower operating costs

First reported September 22, 2026 by TechCrunch · covered by 5 sources

In short

Anthropic launched Claude Opus 5.5, describing it as its strongest-performing model to date. The company says it delivers performance comparable to Fable 5.1 on most work while costing 40% less to run than Opus 5. Anthropic also says the model includes stronger safeguards and is comparable to Mythos 5.1 in biology and cybersecurity.

Claude Opus Claude Opus 5.5 Anthropic Astra Opus 5.5

Written by our news service from the 5 sources below, updated September 23, 2026.

Timeline

Sep 22, 16:30 UTC · TechCrunch
Anthropic releases Opus 5.5 with lower prices and Fable-level performance ↗
Sep 22, 17:12 UTC · Mashable
Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price ↗
Sep 22, 17:49 UTC · Decrypt
Anthropic’s New Claude Opus 5.5 Matches Fable at 60% the Price ↗
Sep 23, 00:35 UTC · CryptoBriefing
Anthropic launches Claude Opus 5.5, cutting costs by 40% ↗

All coverage

Anthropic releases Opus 5.5 with lower prices and Fable-level performance

Anthropic called it "the strongest-performing model we've tested to date."

Sep 22, 2026 · byTechCrunch

Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price

Anthropic says Claude Opus 5.5 rivals Fable 5.1 on most work at 40 percent lower cost than Opus 5, with tougher safeguards.

Claude Opus Claude Opus 5.5

Sep 22, 2026 · byMashable

Anthropic’s New Claude Opus 5.5 Matches Fable at 60% the Price

Anthropic's new flagship claims Fable 5.1-level performance at a fraction of the cost—but GPT-6 Astra still beats it on two published benchmarks.

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Anthropic Astra

Sep 22, 2026 · byDecrypt

Anthropic Launches Claude Opus 5.5 With Fable-Level Performance at a Lower Price

Anthropic today launched Claude Opus 5.5 , which it says is the first model in a new 5.5 model family. Opus 5.5 performs at the level of Claude Fable 5.1 on most work, but costs 40 percent less to run than Opus 5. According to Anthropic, Opus 5.5 is a "major step up" from Opus 5 with improvements in performance and safety. Opus 5.5 is comparable to Mythos 5.1 in biology and cybersecurity, so Anthropic is launching it with safeguards similar to those on Fable 5.1. Opus 5.5 also generates output over 30 percent faster than Opus 5. On benchmarks shared by Anthropic, Opus 5.5 surpassed Fable 5.1 on agentic coding, knowledge work, computer use, visual chart recognition, and multidisciplinary reasoning. Anthropic says the model communicates more naturally than prior models, putting important information at the front of a response so it's easier to understand at a glance. It is less likely to use jargon or idiosyncratic phrases, and it follows the writing rules it's given. Claude Opus 5.5 is available on all platforms as of today. With the launch of Opus 5.5, Anthropic is raising the five-hour usage limits on Pro, Max, Team, and seat-based Enterprise plans. Subscribers have also received a rate limit reset that can be used anytime between now and October 22. Tag: Anthropic This article, " Anthropic Launches Claude Opus 5.5 With Fable-Level Performance at a Lower Price " first appeared on MacRumors.com Discuss this article in our forums

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Claude Opus Claude Opus 5.5 Opus 5.5

Sep 22, 2026 · byMacRumors

📰

Anthropic launches Claude Opus 5.5, cutting costs by 40%

Anthropic's Claude Opus 5.5 enhances AI accessibility and efficiency, potentially accelerating innovation while prioritizing safety and alignment. The post Anthropic launches Claude Opus 5.5, cutting costs by 40% appeared first on Crypto Briefing .

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Anthropic Claude Opus Claude Opus 5.5

Sep 23, 2026 · byCryptoBriefing