Companies

OpenAI president defends his motives in for-profit restructuring as he reveals $30bn personal stake

Lawsuit brought by Elon Musk accuses start-up's executives of selling out its charitable mission for personal gain.

Eleanor Hartley · Updated · May 5, 2026

Inside the AI startup that quietly hired half of OpenAI's superalignment team

Aletheia Research, founded in 2024, has now poached 14 of the 27 researchers who were on OpenAI's superalignment team at its peak.

Mistral open-sources 600B-parameter mixture-of-experts model

The release sits between the open-weights giants and frontier closed models. The licensing fine print is the most permissive in its weight class.

Theo Bergmann May 5

Policy

EU AI Act enforcement begins for general-purpose models, fines start at €35m

The grace period ended yesterday. Six labs face technical-documentation requests; none has yet been fined.

Priya Raghavan May 5

Compute

Nvidia's Rubin chip enters volume production, easing H100 spot prices

First customer shipments are scheduled for May. The supply shock that defined 2024 may finally be ending.

Marcus Chen May 5

Companies

Anthropic raises $8bn at $200bn valuation as Amazon doubles down

The funding round, led by existing investors, more than triples Anthropic's valuation in 11 months and cements its position as the chief commercial rival to OpenAI.

Nadia Okafor May 5

Inference.

Frontier Models

OpenAI ships GPT-6 with persistent agentic memory across sessions

The headline feature is not raw capability. It is continuity — and the regulators are already asking what it means.

— Eleanor Hartley

More Headlines