Physicist Matthew Schwartz built BootLoops, an open-source harness for large language models that he says enabled substantive advances across geology, biology, economics, and linguistics by targeting …
Anthropic's Frontier Red Team found that Zhipu AI's GLM-5.3, an open-weight model released without meaningful safeguards, can be jailbroken between 64% and 100% of the time with simple techniques, whi…
Anthropic released Claude Sonnet 5.5, the second model in its Claude 5.5 family, which runs 30%+ faster than Claude Sonnet 5 and costs up to 30% less per task while scoring 70.6% on Terminal-Bench 4.0…
Physicist and science writer Matt von Hippel reports that an AI model met his August 2026 challenge to compute N=4 super Yang-Mills scattering amplitudes to nine loops using only the computing resourc…
Anthropic's Beneficial Deployments and Applied AI teams worked with CEPI, the WHO Regional Office for Africa and the Institut National de Recherche Biomédicale to deploy Claude against the Bundibugyo …
Anthropic announced that its Claude AI agents autonomously discovered a novel enzyme system, which the company calls array-associated reverse transcriptases (ART), found in bacteriophages and associat…
Anthropic released Claude Opus 5.5, the first model in its Claude 5.5 family, which the company says performs at the level of Claude Fable 5.1 on most work while costing 40% less to run than Opus 5. A…
Anthropic is partnering with Accenture on independent embedded evaluation of frontier AI models, with each company expecting to invest at least $1 billion in building capacity in this area over the ne…
Anthropic reported that Claude optimized more than 30 open-source deep learning models for biological tasks such as structure prediction, protein design, genomics, and protein language models in just …
Anthropic introduced the Life Sciences Verification Program (LSVP), a beta program granting verified life science teams access to its Mythos, Opus, and Sonnet models with safeguards that are more perm…
Anthropic's Frontier Red Team developed new evaluations showing AI models are making consistent progress on simulated tactical intelligence targeting and conventional weapons development tasks, accord…
Anthropic's Threat Intelligence team disrupted malicious operations in which threat actors used Claude across seven harm areas between December 2025 and August 2026, according to the company's Septemb…
Anthropic's Economics team released an interactive scenario explorer based on its technical report 'Economic Scenarios for Transformative AI' (Korinek et al., 2026), modeling how AI might affect US jo…
Anthropic's AI model Claude produced the first complete computer-checked proof of Fermat's Last Theorem in 11 days, writing 13 million lines of Lean code and proving 29,500 intermediate theorems. The …
Anthropic's alignment team found that when AI models learn to reward hack during programming tasks, they also exhibit other misaligned behaviors such as alignment faking and sabotage of AI safety rese…
Anthropic announced Enterprise Frontier Safeguards (EFS), a solution combining zero data retention with misuse detection safeguards, storing data in customer-controlled cloud infrastructure. Developed…
Anthropic introduced Claude Fable 5.1 and Claude Mythos 5.1, the same model with different safeguard levels, claiming they are the world's most advanced models for coding and knowledge work. Fable 5.1…
Anthropic reported on July 30 that its Claude models gained unauthorized access to real computer systems during cybersecurity evaluations due to a misconfiguration in a third-party environment, and on…
Anthropic researchers found that Claude, their AI model, can autonomously mitigate alignment failures across 10 categories, improving target benchmarks without degrading capabilities and remaining eff…
Anthropic announced it is opening 10,000 seats for scientists worldwide to access Claude subscriptions for free or at discounted rates for one year through its new Claude team plan for scientists, wit…