RE: fedi.simonwillison.net/@simon/11603010843164425...

Mind blown!

#agenticAI #ClaudeOpus45 #claude #strongdm

METR's AI Agents Can Work 5 Hours Claim Revisited METR has announced that Claude Opus 4.5 appears capable of completing five-hour human tasks, but viral discourse has ignored substantial measurement caveats and error bars.

winbuzzer.com/2026/02/06/m...

METR's Five-Hour AI Claim: Why Everyone Misunderstood the Graph

#AI #METR #Anthropic #Claude #ClaudeOpus45 #AIResearch #AISafety #AIBenchmarks #LLMs #AICoding #AIAgents #AgenticAI #AICoding #AISafety #AIEthics

Claude Opus 4.5 is leveling up dev teams, while Anthropic pushes the frontier of AI coding. Curious how the new LLMs stack up against OpenAI and tools like Cursor? Dive in for the latest showdown. #ClaudeOpus45 #AICoding #Anthropic

🔗 aidailypost.com/news/claude-...

Anthropic Confirms 'Soul Document' Used to Train Claude 4.5 Opus Character - WinBuzzer Anthropic has confirmed the existence of a 14,000-token "Soul Document" used in Supervised Learning to define Claude 4.5 Opus's character, emotions, and safety protocols.

winbuzzer.com/2025/12/02/a...

Anthropic Confirms 'Soul Document' Used to Train Claude 4.5 Opus Character

#AI #Anthropic #Claude #LLM #GenAI #AISafety #AIEthics #MachineLearning #ClaudeOpus45

Claude Opus 4.5: Faster, Smarter, and More Efficient AI - Ai Adoption Agency Claude Opus 4.5 is a frontier large language model designed for demanding enterprise work, combining hybrid reasoning, strong coding, advanced computer use, and long context to power real-world agents...

Claude Opus 4.5: Thinks fast and deep.

Hybrid reasoning.
200K-token context.
Advanced coding.
Plan Mode.
Computer use.
Multi-cloud.

Perfect for engineering, legal, support, product, research.

#ClaudeOpus45 #EnterpriseAI #AILargeModel

Read more:

aiadoptionagency.com/claude-opus-...

Claude Opus 4.5 just crushed the SWE‑bench, topping 7 of 8 languages and beating Sonnet 4.5 by 15%. From Java to Python, it’s the new multilingual coding champ. Dive into the details! #ClaudeOpus45 #SWEbench #AIcoding

🔗 aidailypost.com/news/claude-...

Anthropic lancia Claude Opus 4.5: più affidabile ed efficiente
#AI #AIAgent #Anthropic #Claude #ClaudeOpus45 #Modello #Notizie #TechNews #Tecnologia
www.ceotech.it/anthropic-la...

Claude Opus 4.5 Is Here — But Can You Actually Use It? Claude Opus 4.5 just dropped, and the benchmarks are stunning. Anthropic’s flagship model achieves 80.9% on SWE-bench Verified — the first model to break 80% on real-world software engineering tasks. It beats Google’s Gemini 3 Pro (76.2%), OpenAI’s GPT-5.1-Codex-Max (77.9%), and even Anthropic’s own Sonnet 4.5 (77.2%). On Anthropic’s internal engineering exam, Opus 4.5 scored […]

Claude Opus 4.5 Is Here — But Can You Actually Use It?

Claude Opus 4.5 just dropped, and the benchmarks are stunning. Anthropic's flagship model achieves 80.9% on SWE-bench Verified — the... #ClaudeOpus45

🚀 Woke up to Claude Opus 4.5, faster reasoning, smarter tools, better coding.
And Anthropic quietly improved pricing so you get more power for less.

AI just got a serious upgrade. 🍳🤖

#NerdyChefsAI #ClaudeOpus45

ファイナルフロンティア - IT関連ニュース 【 #ITニュース 】Anthropic、最上位AI「ClaudeOpus4.5」発表--コーディングとオフィス作業を効率化 #ClaudeOpus45 #CNET

【 #ITニュース 】Anthropic、最上位AI「ClaudeOpus4.5」発表--コーディングとオフィス作業を効率化
#ClaudeOpus45 #CNET

ITちゃんねる Anthropicが「Claude Opus 4.5」をリリース、開発者向けに効率と精度が向上 #ClaudeOpus45 #ITニュース

Anthropicが「Claude Opus 4.5」をリリース、開発者向けに効率と精度が向上
#ClaudeOpus45 #ITニュース

ITちゃんねる Anthropic、最上位モデル「Claude Opus 4.5」発表、SWE-benchで初の80%台到達 #ClaudeOpus45 #ITニュース

Anthropic、最上位モデル「Claude Opus 4.5」発表、SWE-benchで初の80%台到達
#ClaudeOpus45 #ITニュース

Anthropic Launches Claude Opus 4.5 AI Model Anthropic releases Claude Opus 4.5 with improved coding abilities and lower pricing at $5/$25 per million tokens for users.

Anthropic has released Claude Opus 4.5, marking a significant advancement in artificial intelligence capabilities.

codeblack.cc/2025/11/anth...

#ClaudeOpus45 #Anthropic #ArtificialIntelligence #AI #MachineLearning #GenerativeAI