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Anthropic found a hidden space where Claude puzzles over concepts

Anthropic also found that the J-space can sometimes give remarkable insights into an LLM’s decision-making. In one striking example, researchers testing Claude Opus 4.6 asked the model to find a bug in... Read more »

Anthropic found a hidden space where Claude puzzles over concepts

Anthropic also found that the J-space can sometimes give remarkable insights into an LLM’s decision-making. In one striking example, researchers testing Claude Opus 4.6 asked the model to find a bug in... Read more »

The Download: a nuclear landmark, and China eyes Nvidia chips

I was really looking forward to July 4, and not just because I love a poolside barbecue. This year the American holiday also marked a big symbolic deadline for US nuclear power.... Read more »

The Download: a nuclear landmark, and China eyes Nvidia chips

I was really looking forward to July 4, and not just because I love a poolside barbecue. This year the American holiday also marked a big symbolic deadline for US nuclear power.... Read more »

Four nuclear reactors hit a big milestone in the US

But achieving criticality doesn’t mean a reactor is ready to provide electricity for the grid (or at all, for that matter). Let’s untangle what this program’s success could mean for nuclear power... Read more »

Four nuclear reactors hit a big milestone in the US

But achieving criticality doesn’t mean a reactor is ready to provide electricity for the grid (or at all, for that matter). Let’s untangle what this program’s success could mean for nuclear power... Read more »

Sperm donors need limits, says a European fertility group

Many countries already have legal limits for donors. In Malta and Cyprus, for example, both egg and sperm donors are allowed to contribute to the birth of just a single child, according... Read more »

Sperm donors need limits, says a European fertility group

Many countries already have legal limits for donors. In Malta and Cyprus, for example, both egg and sperm donors are allowed to contribute to the birth of just a single child, according... Read more »

The Download: Claude’s inner workings and OpenAI’s “super app”

Researchers at the company built a tool called the Jacobian lens (or J-lens) and used it to uncover a hidden area, which they named the J-space, inside its flagship LLM, Claude. The... Read more »

The Download: Claude’s inner workings and OpenAI’s “super app”

Researchers at the company built a tool called the Jacobian lens (or J-lens) and used it to uncover a hidden area, which they named the J-space, inside its flagship LLM, Claude. The... Read more »