Introducing Claude Opus 4.8
… It’s a great model to build with. On our Super-Agent benchmark, Claude Opus 4.8 is the only model to complete every case end-to-end, beating prior Opus models and GPT-5.5 at parity on cost. …
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What’s next?
Users will find Opus 4.8 to be a modest but tangible improvement on its predecessor. There’s still more to be done: we’re working on developing and releasing models that provide many of the same capabilities as Opus at a lower cost. Not only that, but we plan to release a new class of model with even higher intelligence than Opus. As part of Project Glasswing, a small number of organizations are currently using Claude Mythos Preview for cybersecurity work. Models of this capability level require stronger cyber safeguards before they can be generally released. We’re making swift progress on dev
Introducing Claude Opus 4.8Natural Language Autoencoders
Interpretability Natural Language Autoencoders: Turning Claude’s thoughts into text May 7, 2026 Read the paper When you talk to an AI model like Claude, you talk to it in words. Internally, Claude processes those words as long lists of numbers, before again producing words as its output. …
Introducing Claude Opus 4.7
… Claude Opus 4.7 passed three TBench tasks that prior Claude models couldn’t, and it’s landing fixes our previous best model missed, including a race condition. …
Introducing Claude Opus 4.5
… They were run on an earlier snapshot of Claude Opus 4.5. Evaluations of the final production model show a very similar pattern of results when compared to other Claude models, and are described in detail in the Claude Opus 4.5 system card . …
An update on recent Claude Code quality reports
… We've additionally added guidance to our CLAUDE.md to ensure model-specific changes are gated to the specific model they're targeting. …
Agents for financial services
… Firms can adapt any of them to their own modeling conventions, risk policies, and approval flows. Enable these new agent templates either as plugins within Claude Cowork or Claude Code, or as cookbooks for Claude Managed Agents. …
An update on our election safeguards
… Claude can make mistakes, so we encourage people to always verify anything important to them through other official sources. This year, we ran evaluations on our models to see whether web search was triggered when Claude was asked questions related to elections around the world. …
Anthropic forms $200 million partnership with the Gates Foundation
… An integration with Claude will make IDM’s forecasts more accessible to practitioners and researchers who aren’t modeling specialists, and will help IDM develop more predictive models of disease transmission. …
Claude Opus 4.6
… Overall, it is just as well-aligned as its predecessor, Claude Opus 4.5, which was our most-aligned frontier model to date. Opus 4.6 also shows the lowest rate of over-refusals—where the model fails to answer benign queries—of any recent Claude model. …
Partnering with Mozilla to improve Firefox’s security
… The urgency of the moment Frontier language models are now world-class vulnerability researchers. On top of the 22 CVEs we identified in Firefox, we’ve used Claude Opus 4.6 to discover vulnerabilities in other important software projects like the Linux kernel. …