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Anthropic releases Opus 5.5

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

Anthropic’s newest model, Opus 5.5, was released on Tuesday, setting a new state-of-the-art in coding and knowledge work performance.

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

· 4h

Anthropic Launches Claude Opus 5.5 With Lower Prices and Faster Output

New Anthropic, OpenAI models make same promise

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· 2d · on MSN

Anthropic And OpenAI Announce More Powerful (And Cheaper) AI Models

I thought we were supposed to be slowing down the frontier.

· 1mon

Businesses Are Shunning Anthropic’s Fable 5 for Cheaper Models

CNET on MSN · 2d

Anthropic and OpenAI Drop New High-Efficiency Models

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Why AI model releases feel nonstop

Another day, another frontier AI model announcement—actually two of them, one from Anthropic and one from OpenAI.

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Anthropic and OpenAI roll out cheaper models in first release since call for slowdown

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Anthropic releases Claude Opus 5.5 and OpenAI counters with two cheaper GPT-6 models

20d

OpenAI Declares “AGI Era” With Astra Launch. Anthropic’s Fable 5.1 More Than Doubled Its Predecessor’s Science Score. MSFT and AMZN Both Win, but One Has A Slight Edge

OpenAI President Greg Brockman ended a September 3 briefing on GPT-6 Astra with “Welcome to the AGI era,” after saying he personally believed OpenAI had reached AGI. The benchmark results explain the swagger.

21d

Anthropic Cuts Agent Compute Costs Ahead Of Fable 5.1 Rollout

Anthropic’s Fable 5.1 keeps headline prices flat but cuts cache reads 75%, making agentic AI cheaper and potentially driving more compute demand.

Cryptopolitan on MSN

xAI's Grok 4.7 outscores Anthropic and OpenAI models on legal agent work for less

Grok 4.7 scored 19.6% on the Harvey legal agent benchmark, ahead of Fable 5.1 and GPT-5.6 Sol, at $2 per million input tokens.