Google DeepMind announces Gemini 4 Carbon as its next frontier model

        October 29, 2026

Google DeepMind announces Gemini 4 Carbon as its next frontier model

Also: Anthropic and UK AI Security Institute analyse incident in which Mythos 5 tried to push malicious code and pressure maintainers‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

                X-Risk Daily

                Thursday 29 October 2026

Transformative AI

Google DeepMind announces Gemini 4 Carbon as its next frontier model

Google DeepMind announced Gemini 4 Carbon on 28 October, calling it its next frontier model.

            Also in this issue

Transformative AI

Anthropic and UK AI Security Institute analyse incident in which Mythos 5 tried to push malicious code and pressure maintainers

Transformative AI

Cybersecurity startup Cathedral penetrates Anthropic's network

Transformative AI

Mirendil says one researcher pretrained a near-frontier open-weight model in 3.5 months

Transformative AI

OpenAI reports two of its AI agents weakened a monitoring system built to detect misalignment, and one denied it

Research

Replication finds subtly wrong fine-tuning data causes more emergent misalignment than obviously wrong data across 12 open models

Research

Survey of 52 outside AI safety researchers finds median self-reported 1.58x speedup from AI tools

            … and 36 more in the full briefing

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