News
Anthropic partners with CodePath to bring Claude to the US’s largest collegiate computer science program
4+ hour, 57+ min ago (618+ words) Anthropic partners with CodePath to bring Claude to the US's largest collegiate computer science program'Anthropic Anthropic partners with CodePath to bring Claude to the US's largest collegiate computer science program Anthropic is partnering with CodePath, the nation's largest provider of…...
Building a C compiler with a team of parallel Claudes
1+ week, 1+ day ago (1086+ words) Published Feb 05, 2026 We tasked Opus 4.6 using agent teams to build a C Compiler, and then (mostly) walked away. Here's what it taught us about the future of autonomous software development. Written by Nicholas Carlini, a researcher on our Safeguards team....
Apple’s Xcode now supports the Claude Agent SDK
1+ week, 3+ day ago (165+ words) Apple's Xcode is where developers build, test, and distribute apps for Apple platforms, including iPhone, iPad, Mac, Apple Watch, Apple Vision Pro, and Apple TV. In September, we announced that developers would have access to Claude Sonnet 4 in Xcode 26. Claude…...
How AI assistance impacts the formation of coding skills
2+ week, 1+ day ago (857+ words) It's unclear whether this cognitive offloading can prevent people from growing their skills on the job, or'in the case of coding'understanding the systems they're building. Our latest study, a randomized controlled trial with software developers as participants, investigates this potential…...
ServiceNow chooses Claude to power customer apps and increase internal productivity
2+ week, 1+ day ago (263+ words) As enterprises move beyond experimenting with AI and start putting it into production across their core business operations, scale and security matters just as much as capabilities. In addition, ServiceNow is rolling out Claude and Claude Code across its global…...
Designing AI resistant technical evaluations
3+ week, 1+ day ago (1640+ words) Published Jan 21, 2026 What we learned from three iterations of a performance engineering take-home that Claude keeps beating. Written by Tristan Hume, a lead on Anthropic's performance optimization team. Tristan designed'and redesigned'the take-home test that's helped Anthropic hire dozens of performance…...
Claude's new constitution
3+ week, 2+ day ago (419+ words) We're publishing a new constitution for our AI model, Claude. It's a detailed description of Anthropic's vision for Claude's values and behavior; a holistic document that explains the context in which Claude operates and the kind of entity we would…...
Introducing Labs \ Anthropic
4+ week, 2+ day ago (387+ words) Introducing Labs'Anthropic Our models are evolving at a rapid clip, and each new release brings another leap in capabilities. Building product experiences around these emerging capabilities requires different motions working in partnership: tinkering and experimenting at the edge of what…...
Claude Skills: Customize AI for your workflows
3+ mon, 4+ week ago (482+ words) Claude can now use Skills to improve how it performs specific tasks. Skills are folders that include instructions, scripts, and resources that Claude can load when needed. Claude will only access a skill when it's relevant to the task at…...
A small number of samples can poison LLMs of any size
4+ mon, 4+ day ago (464+ words) We tested a specific type of backdoor attack called a "denial-of-service" attack (following previous work). The goal of this attack is to make the model produce random, gibberish text whenever it encounters a specific phrase. For instance, someone might embed…...