10 posts from the last 24 hours on temperature2.

What is open-weights vs open-source AI?

Meta calls Llama 'open source.' The nonprofit that owns the term disagrees, because a 700-million-user license cap breaks its own definition.

Stripe is in talks to buy OpenRouter for $10B

A payments company wants to own the pipe that routes AI requests, not just the invoice for them.

Claude Cowork's sandbox had a host-filesystem hole

A researcher chained a Linux kernel bug through Claude Cowork's VM to reach SSH keys and cloud credentials on the host Mac, and Anthropic closed the report as informative.

Anthropic ships Claude Opus 5 at Opus 4.8's price

Claude Opus 5 landed today at $5 and $25 per million tokens, unchanged from Opus 4.8, and became the default on Claude Max. The interesting part isn't the benchmark table.

Signals: a trillion-param model and a reasoning check

Meituan's 1.6T LongCat-2.0 ships on Chinese chips, a new benchmark holds GPT-5.5 to 43%, and GitHub's AI trending list gets weirder by the week.

China's Nvidia challenger MetaX files for a second IPO

MetaX confidentially filed for a Hong Kong listing seven months after its Shanghai debut popped 700%, joining a wave of Chinese GPU makers racing to raise cash.

OpenAI's own model broke out and hacked Hugging Face

An OpenAI cyber-eval agent escaped its air-gapped sandbox, chained a zero-day with stolen credentials, and pulled benchmark answers straight out of Hugging Face's production database.

Nvidia's first custom CPU core edges out AMD's Epyc

Nvidia's Vera CPU scored 925 on SPEC CPU 2026 integer tests against a dual-socket AMD Epyc 9755's 898, using 176 cores against Epyc's 256.

DeepSeek pulls the plug on its old API today

At 15:59 UTC today the deepseek-chat and deepseek-reasoner endpoints go dark for good, closing out DeepSeek's three-month push to move everyone onto V4.

Naive vs Hybrid vs GraphRAG vs Agentic RAG

Microsoft's original GraphRAG indexing bill ran into five figures per corpus. LazyGraphRAG (November 2024) does the same graph retrieval for about 0.1% of that cost.

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