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Oct 20, 2026
GitHub’s Copilot model policy API turns model access into auditable configuration
GitHub now exposes generally available GET and PATCH endpoints for Copilot model policies at enterprise, team, app and organization levels. The API can reduce manual drift, but delegation mode, current state and rollout verification still decide which models users can select.
Sep 28, 2026
AI found a thermostable mRNA vaccine recipe in six rounds—but the evidence is still preclinical
A peer-reviewed MIT study used Bayesian optimization to find solid-state mRNA vaccine formulations that retained full bioactivity after more than two months at 37°C and produced non-inferior immune responses in reported animal experiments.
May 5, 2026
Sierra Secures $950M as Enterprise AI Heats Up
Sierra, Bret Taylor's AI startup, just closed a $950M round, hitting a $15B valuation. Armed with over $1B, Sierra aims to dominate the enterprise AI scene by enhancing customer experiences with AI agents.