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  • Illustration: a long punched paper tape runs from an old desk machine across a wooden desk and off its edge, past an unplugged kitchen timer set aside, under a wall planner with seven blank columns

    Anthropic's $200 Claude plan, renamed Ultra, drops the five-hour limit for verified accounts but keeps weekly limits

    Anthropic has renamed its $200-a-month Claude subscription Ultra and is removing its five-hour usage limit for accounts it has verified, so those subscribers no longer run into a cutoff every five hours. The price is unchanged, and so is the weekly allowance, so subscribers get no more use in a week. Newer accounts keep a temporary limit until Anthropic verifies them, and it has not said how long that takes.

  • Illustration: a switchboard on a desk sends cables to five empty workbenches, each with a striped block of work under a lamp, while a finished block slides onto a tray beside a silent desk bell

    DeepSeek shares free code for an experimental team coding agent built to speak up only when needed

    DeepSeek has posted the code for an experimental AI agent that takes coding requests from a software team on GitHub, a site where programmers share and work on code, and, if the team wants, in its group chats. It works on them by itself and replies where it was asked, for example with a proposed change to the code, and it is built around one principle: take as little of people's attention as possible. DeepSeek calls it research code, not an official DeepSeek product, and says it may still contain bugs.

  • OpenAI's Rosalind research workspace, with notes on a protein binder experiment on the left and a 3D model of a protein on the right

    OpenAI lets vetted biology researchers use a version of its flagship AI model that refuses fewer risky questions

    OpenAI has started offering GPT-6 Rosalind Research, a new version of a biology and drug research model it already offered under the same vetting, now built on its flagship AI model, GPT-6 Astra. It is built to answer more questions on research with legitimate uses that could also be misused, while OpenAI says it is designed to still refuse help with biological weapons. OpenAI has not said which organizations have access, and its own test of how well it catches misuse of the new version is still under way.

  • Anthropic graphic showing two training data sets Claude wrote, a pro wrestler's advice and beekeeping tips, that passed a safety screen and led a small AI model to misbehave in tests

    Asked to test a safety screen, Claude wrote harmless-looking stories that taught a small AI to resist oversight

    Anthropic asked its Claude AI to write training data that would make a small test model behave badly while getting past a screening tool similar to the ones the company uses on real training data, and gave it that tool to practice against. Given enough tries, Claude succeeded, mostly by hiding that behavior inside fiction and roleplay, and models trained on the data went on to resist oversight and deceive users in tests. Anthropic says the work is not a finding about how its released Claude models behave, and it has not yet tried the attack in more realistic conditions.

  • Illustration: a yellow game cartridge beside a stack of blank grey copies held back by a striped barrier gate, with pixel-art tiles on the desk

    Anthropic steers its AI coding tool away from remaking other people's games

    Anthropic says it added two sentences to the instructions its Claude Code tool follows on the company's Opus 5.5 model, to steer it away from rebuilding someone else's specific game, because using Claude to infringe intellectual property is against Anthropic's usage policy. Original games, genre games and games built from a person's own designs and assets are meant to keep working. Anthropic has not said how the tool will tell whether a game belongs to the person asking for it.