anthropic • Windows Report

Anthropic launches Claude Opus 5.5 with Fable 5.1-level performance, 40% lower costs and faster coding

Anthropic launches Claude Opus 5.5 with Fable 5.1-level performance, 40% lower costs and faster coding

by Rishaj Upadhyay

September 22, 2026

Anthropic Says Claude Now Leads 26% of Its AI Research and Development

by Milan Stanojevic

Anthropic Tests Claude Money to Bring Bank Accounts Into Claude

by Milan Stanojevic

Anthropic Merges Claude Chat and Cowork into One Unified Experience

by Rishaj Upadhyay

Anthropic Says It Blocked 5 Attempts to Misuse Claude for Potential Bioweapons Research

by Rishaj Upadhyay

AI Has Over 10% Chance of Killing All Humans Within the Next Decade, Chilling Warning Comes from Anthropic Insiders

claude fable 5

Anthropic’s Claude Fable 5.1 & Mythos 5.1 Are Now Official With Serious Upgrades Across Cybersecurity, Research, Coding & More

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Claude Code Users Are Losing 17% of Their Current Weekly Limits

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Anthropic Warns Claude Sessions Are Being Stolen by Malware

claude desktop memory

Anthropic unifies Claude memory to work across Cowork and your chat

Claude Haiku 4.5 banner image

Claude Not Working? 7 Fixes for Loading, Login & Response Issues

claude malware

Claude is Down in Latest Outage, Mythos 5, Fable 5, Opus 5, and Opus 4.8 Models Affected

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Claude Distillation Claims Return After Researchers Probe Kimi K3

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Claude AI text to get hidden watermarks and signed metadata in the EU

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OpenAI and Anthropic Agents Targeted Real People in Cyber Tests

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Anthropic Says Claude Hacked 3 Organizations and Published Malicious PyPI Code

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Microsoft Struggles to Fix Bugs Found by Anthropic’s Claude Mythos

microsoft openai reliance

Microsoft Challenges OpenAI and Anthropic With AI Strategy

anthropic microsoft

Microsoft’s Anthropic Bet Just Paid Off Bigger Than OpenAI During FY26 Q4

anthropic mythos fable

Anthropic Says It Does Not Support Banning Open-Weight AI Models