AI Daily Digest, October 7, 2026: Codex Ships Day 1, OpenAI Watermarks Text, Mistral Goes Le Chonk

KD Agentic · AI Daily Digest, October 7, 2026. Seven stories today: the first delivery in OpenAI's 28-day Codex pledge, invisible text watermarks built for the EU AI Act, Anthropic opening its strongest cyber models to 150 more organizations, Claude moving into Google Workspace, a one-trillion-parameter open-weight preview from Mistral, a $4B pre-IPO round for Lambda, and Waymo starting driverless operations in Detroit.

1. Codex Day 1: default speed up about 50 percent

Day 1 of the 28-day Codex pledge landed on October 5. Tibo (Thibault Sottiaux), who leads Codex at OpenAI, reported that default output speed for GPT-6 Astra and GPT-6.1 Sol through the subscription rose from roughly 30 tokens per second to about 50, a gain of around 50 percent with no settings change on the user side.

The improvement comes from infrastructure optimization rather than any model change, and it reached all OpenAI products plus partners using Sign in with ChatGPT, including OpenCode, Pi, Amp, and Devin, within about two hours of the announcement.

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