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OpenAI, Google, Microsoft, and Anthropic Back Unified AI Training Opt-Out in Robots.txt

Nov 9, 2026

OpenAI, Google, Microsoft, and Anthropic Back Unified AI Training Opt-Out in Robots.txt

The four largest Western AI labs will honor a single robots.txt policy token that lets website owners opt out of AI training across all their crawlers at once. Anthropic has already begun implementation; OpenAI, Google, and Microsoft follow in 2027.

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Revolut Swaps Claude Code for Chinese GLM, Cuts Coding Costs 90%

Nov 8, 2026

Revolut Swaps Claude Code for Chinese GLM, Cuts Coding Costs 90%

Revolut has moved roughly 2,000 engineers from Anthropic's Claude Code and OpenAI's Codex to a self-hosted instance of GLM 5.3, an open-weight model from Beijing-based Z.ai, cutting AI-assisted coding costs by approximately 90%. David Abitbol, who leads AI operations and infrastructure at Revolut, shared the migration story at the AI Engineer conference in New York, detailing how the fintech tuned the model from a "terrible" out-of-box experience of 14-second latency down to 1.6 seconds. The move underscores a growing trend: well-funded engineering organizations are betting on self-hosted open-weight models over per-seat SaaS subscriptions for AI coding tools.

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Anthropic Presses Ahead With Pre-Thanksgiving IPO at Lower Valuation

Nov 8, 2026

Anthropic Presses Ahead With Pre-Thanksgiving IPO at Lower Valuation

Anthropic is pushing ahead with its Nasdaq IPO before Thanksgiving despite a brutal tech selloff that has slashed expectations from $2 trillion to as low as $1.1 trillion. The Claude developer aims to raise $80-100 billion at a $1.25-1.75 trillion valuation, riding $81 billion in annualized revenue. But voter backlash against AI data centers and jittery public markets are testing whether the first pure-play AI IPO can land cleanly.

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