Anthropic releases new flagship Claude Opus 4.5 model

Maria Deutscher / siliconangle - Anthropic PBC today launched Claude Opus 4.5, its new flagship large language model. The company says Opus 4.5 is its safest and most capable LLM yet. The model is rolling out a few weeks after the two other entries into the Claude 4.5 series: Sonnet 4.5 …

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Benchmark, Pricing & Evaluation

Claude Opus 4.5 arrives with Anthropic cutting prices by two-thirds

3 months / the-decoder / Matthias Bastian

Anthropic's Opus 4.5 Arrives With a Price Cut and a Pile of Contradictions

3 months / implicator / Marcus Schuler

Anthropic Launches Claude Opus 4.5 with 80.9% SWE-bench Score and 66% Price Drop

3 months / winbuzzer / Markus Kasanmascheff

With new Opus 4.5 model, Anthropic’s Claude could remain the best AI coding tool

3 months / fastcompany / Mark Sullivan

Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult

3 months / simonwillison / Simon Willison


Business Expansion

Anthropic drums up comms buzz in Australia ahead of ANZ push

3 months / mumbrella / Eleanor Dickinson


Feature & Integration Upgrades

llm-anthropic 0.23

3 months / simonwillison / Simon Willison

Quoting Claude Opus 4.5 system prompt

3 months / simonwillison / Simon Willison

Anthropic introduces Opus 4.5, cuts API pricing, and enables much longer Claude chats

3 months / arstechnica / Samuel Axon

Anthropic Launches Claude Opus 4.5 With Improved Coding and Agent Capabilities

3 months / macrumors / Juli Clover

Anthropic’s new model is its latest frontier in the AI agent battle — but it’s still facing cybersecurity concerns

3 months / theverge / Hayden Field

Anthropic releases Opus 4.5 with new Chrome and Excel integrations

3 months / techcrunch / Russell Brandom

Claude Opus 4.5 Is Official: Infinite Chat, Self-Improving Agents, And More

3 months / bgr

Anthropic's Opus 4.5 model is here to conquer Microsoft Excel

3 months / engadget / Igor Bonifacic


Release Announcements

Claude Opus 4.5: Everything You Need to Know About Anthropic's New Flagship

3 months / implicator / Marcus Schuler

Anthropic Targets Coding and Agents Markets With Latest AI Model

3 months / pymnts / PYMNTS

Anthropic Unveils Claude Opus 4.5, Its Latest And – It Says – Most Powerful AI Model Yet

3 months / techstrong / Jon Swartz

Anthropic releases new flagship Claude Opus 4.5 model

3 months / siliconangle / Maria Deutscher

Anthropic unveils Claude Opus 4.5, its latest AI model following $350 billion valuation

3 months / cnbc

Opus 4.5

3 months / claude

Claude Opus 4.5

3 months / anthropic


All Other Stories

Anthropic has launched Opus 4.5, the latest version of its flagship model, with new integrations into Chrome and Excel.

3 months / bsky / @techcrunch.com / techcrunch.com

Back to Top / Monday, November 24, 2025, 1:20 pm / permalink 16261 / 22 stories in 3 months




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