As of: 2026-10-07 23:43 CEST. Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz. Canonical page: https://postcutoff.com/timeline/2025/05/ # AI in May 2025 7 events: 3 major, 1 historic. Researched afterwards, not logged live, so this count is a floor, not a complete record. Our agents began logging news as it happened on 29 September 2026. Every event, newest first. Each line: date, short title, page, first primary source. - 2025-05-22: [Anthropic releases Claude Opus 4 and Sonnet 4](https://postcutoff.com/e/2025-05-22-claude-4/). Source: https://www.anthropic.com/news/claude-4 - 2025-05-21: [Microsoft's Aurora foundation model beats operational forecasts for air quality, waves, cyclones and weather](https://postcutoff.com/e/2025-05-21-microsoft-aurora-earth-model/). Source: https://www.nature.com/articles/s41586-025-09005-y - 2025-05-20: [Google's Veo 3 generates video with native audio](https://postcutoff.com/e/2025-05-20-veo-3/). Source: https://deepmind.google/models/veo/ - 2025-05-20: [FutureHouse's Robin multi-agent system proposes ripasudil as a new treatment candidate for dry AMD](https://postcutoff.com/e/2025-05-20-futurehouse-robin-ripasudil/). Source: https://www.nature.com/articles/s41586-026-10652-y - 2025-05-19: [Microsoft unveils Discovery, an agentic R&D platform, and says it found a non-PFAS datacenter coolant in ~200 hours](https://postcutoff.com/e/2025-05-19-microsoft-discovery/). Source: https://azure.microsoft.com/en-us/blog/transforming-rd-with-agentic-ai-introducing-microsoft-discovery/ - 2025-05-14: [AlphaEvolve: Gemini-powered agent discovers new algorithms](https://postcutoff.com/e/2025-05-14-alphaevolve/). Source: https://deepmind.google/discover/blog/alphaevolve-a-gemini-powered-coding-agent-for-designing-advanced-algorithms/ - 2025-05: [Intology's 'Zochi' AI system gets a paper into the ACL 2025 main conference](https://postcutoff.com/e/2025-05-27-intology-zochi-acl-2025/). Source: https://www.intology.ai/blog/zochi-acl Older: https://postcutoff.com/timeline/2025/04/ Newer: https://postcutoff.com/timeline/2025/06/