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Redwood Research finds that hint-based chain-of-thought faithfulness evaluations still work on Claude models, contradicting Anthropic system card claims that recent models no longer use hints. The replication study shows…
OpenAI CEO Sam Altman announced an 80% price cut for GPT-5.6 Luna, now costing $0.20 per million input tokens and $1.20 per million output tokens, and a 20% cut for GPT-5.6 Terra, now $2 input and $12 output, in response…
OpenAI cut API prices on its two cheaper GPT-5.6 tiers on July 30, 2026, reducing the cheapest tier, GPT-5.6 Luna, by 80% to $0.20 per million input tokens and $1.20 per million output tokens, and the mid-tier, GPT-5.6 T…
Anthropic's Claude Code Agent Teams, an experimental feature for coordinating multiple Claude instances, is off by default and requires setting CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS to 1, with Anthropic recommending 3 to …
More than 1,100 AI workers from OpenAI, Anthropic, Google, and Meta signed an open letter urging the U.S. government to support international efforts to develop tools that can deliberately pace the frontier of automated …
Developers building multi-model AI applications must create dedicated compatibility test suites for LLM provider quirks, as abstraction layers that work in demos frequently break on provider swaps due to differences in t…
Anthropic announced Monday that its Claude Mythos Preview model discovered mathematical weaknesses in two cryptographic algorithms, halving the effective key strength of the post-quantum signature scheme HAWK and improvi…
Anthropic shipped Claude Opus 5 on July 24, posting 79.2 percent on SWE-bench Pro against Opus 4.8 at 69.2, a 10-point jump with no change in per-token price. The model also shows gains on internal life sciences benchmar…
Anthropic's Claude Opus 5 has topped the Artificial Analysis Intelligence Index with a score of 61, edging past Claude Fable 5's 60 and pushing GPT-5.6 Sol into third place at 59. Anthropic is offering Opus 5 at half the…
China's Moonshot AI has unveiled Kimi K3, the largest open-source AI model to date with 2.8 trillion parameters, built on the Kimi Delta Attention framework and featuring native visual understanding. The model is accessi…
Anthropic's Claude subscribers can now teach the AI chatbot to automate repetitive workflows by recording a screen share with voiceover, a new feature called Record a skill within Claude's Cowork tools. The feature, avai…
A federal judge granted final approval Monday to Anthropic's $1.5 billion settlement with authors and publishers over copyright claims, making it the largest known copyright settlement in U.S. history. The class-action l…
AI-powered cyberattacks are now on par with the best human hackers, according to a new analysis, but blocking access to powerful models like Anthropic's Mythos and Fable through export controls is only a temporary fix as…
Anthropic added routines to Claude Code, a feature in research preview that bundles a prompt, GitHub repositories, and connectors into saved configurations running on Anthropic's cloud infrastructure, triggered by schedu…
Chinese AI startup Moonshot released the Kimi K3 model on Friday (Jul 17), claiming it outperforms all rivals except Anthropic's Claude Fable 5 and OpenAI's GPT-5.6 on overall capability, marking a significant step in cl…
Elon Musk's AI startup xAI, recently renamed SpaceXAI, is in turmoil as it struggles to match rival Anthropic's Claude chatbot, leading to dozens of employee departures, a planned 30% workforce reduction, and the departu…
Tom Blomfield, co-founder of GoCardless and Monzo, announced Monday he is taking a leave of absence from Y Combinator to join Anthropic's compute team as a member of technical staff, joining a wave of already-successful …
Anthropic and OpenAI are extending free access to their most powerful AI models in a price war for power users. Anthropic extended promotional access to its Claude Fable 5 model through July 19 with higher rate limits fo…
The US government and leading AI developers are considering stronger measures to prevent Chinese companies from using American models to build competing systems through AI distillation, a process that Anthropic and OpenA…
The U.S. government's June 12, 2026, restriction on Anthropic's Mythos models has eroded trust in closed-source AI, accelerating a shift toward open-weight models from China. Companies like Palantir and Meta are question…