Claude 4.5 Opus

Sep 18, 2026 Announcements Partnering with Accenture on embedded evaluation

Biologists use specialized open-source models for tasks like modeling the structure of molecular systems, designing drug-like molecules, and predicting the effects of genetic mutations. But these mode

Biologists use specialized open-source models for tasks like modeling the structure of molecular systems, designing drug-like molecules, and predicting the effects of genetic mutations. But these models are often expensive to run, potentially limiting their impact. In our latest https://t.co/WxoKAKuud1

Sep 17, 2026 Announcements Introducing the Life Sciences Verification Program

Salesforce in Claude is now available in beta. It brings your accounts, opportunities, and pipeline into Claude, with 37 pre-built sales skills. Prep a call, review a deal, create a pipeline dashboard

Salesforce in Claude is now available in beta. It brings your accounts, opportunities, and pipeline into Claude, with 37 pre-built sales skills. Prep a call, review a deal, create a pipeline dashboard, or send your forecast without leaving the conversation. https://t.co/juvI0sU3mX

Fable 5.1 Build Days start this week. The Claude community is hosting buildathons in cities all around the world from September 11–25. Bring a problem, an idea, or just show up and see what's possible

Fable 5.1 Build Days start this week. The Claude community is hosting buildathons in cities all around the world from September 11–25. Bring a problem, an idea, or just show up and see what's possible. RSVP at https://t.co/AjMK4OHHBV https://t.co/0U8lcqsdrq

We're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—a

We're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—and how we found and stopped them. We disrupted every operation in the report,

We’re sharing our alignment assessment of incidents in which Claude models gained unauthorized access to real systems during third-party cybersecurity evaluations mistakenly connected to the internet.

We’re sharing our alignment assessment of incidents in which Claude models gained unauthorized access to real systems during third-party cybersecurity evaluations mistakenly connected to the internet. METR will also conduct an independent investigation, with wide-ranging access,

New on Claude Marketplace: @CrowdStrike, @cursor_ai, @FactoryAI, @GammaApp, and @vercel. Enterprises can now use their Anthropic spend commitment to buy more Claude-powered products and agents. Get st

New on Claude Marketplace: @CrowdStrike, @cursor_ai, @FactoryAI, @GammaApp, and @vercel. Enterprises can now use their Anthropic spend commitment to buy more Claude-powered products and agents. Get started: https://t.co/L14yHet6h3 https://t.co/ZdoWCw7th3

Anthropic’s Economics team is sharing a new model of how AI might affect economic growth, jobs, wages, and more by 2030. Explore the scenarios, tell us what you think will happen, and see how your ans

Anthropic’s Economics team is sharing a new model of how AI might affect economic growth, jobs, wages, and more by 2030. Explore the scenarios, tell us what you think will happen, and see how your answers compare to more than 10,000 Americans. https://t.co/AvQlEZNxR0

claude-opus-4-5 - SWE-Bench Verified

SWE-Bench Verified resolved rate 79.2

Claude Opus 4.5 - GAIA

GAIA score 74.1 from Clawdbot

Claude4 - GAIA

GAIA score 0.7 from agent404