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The Frontier

The labs and the models they make.

22 stories

Rows of long, empty wooden tables with brass desk lamps under glowing green glass shades fill a library reading room at night, wooden chairs pushed in, tall wooden bookcases of dark books along the walls, high dark windows behind, and the polished wooden floor reflecting the lamplight.
ILLUSTRATION — Green-shaded lamps glow over long, empty tables in a library reading room at night.

The Price

Anthropic Cuts Its Top Model’s Price by a Fifth

Anthropic released Claude Fable 5.2 on Monday at $8 per million input tokens and $40 per million output, a fifth less than Fable 5.1, as its offering nears.

Anthropic cut the price of its flagship models by a fifth on Monday, releasing Claude Fable 5.2 and Claude Mythos 5.2 at $8 per million input tokens and $40 per million output tokens. Their predecessors cost $10 and $50, by Anthropic’s own price list. The company says the new models also generate output up to 30 percent faster.

3 min read

A long, dark aisle between two rows of tall black server racks dotted with small green and blue lights recedes to a closed door at the far end, under strip lights, the polished grey floor faintly reflecting the lights.

Open Models

Kimi K3.1 Pro’s Weights Arrive, With a Catch

Moonshot AI has posted Kimi K3.1 Pro’s 2.8 trillion parameters for anyone to download; model hosts whose groups earn over $20 million a year need a separate deal.

3 min read

A plain steel padlock hangs on the latch of a black wire-mesh cage door in a dim data hall, rows of rack servers with small green and blue lights behind the mesh and grey floor tiles at its foot.

Cybersecurity

OpenAI Says AI Found 948 Ways to Root Linux

OpenAI said an unreleased model found and exploited 948 distinct Linux kernel flaws that could give an ordinary user full control, for $1.2 million in API credits.

3 min read

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