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/2025/02/

# AI in February 2025

7 events: 3 major. 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.

- 2025-02-25: [AI weather forecasting goes operational](https://postcutoff.com/e/2025-02-25-ecmwf-aifs-operational-ai-weather/). Source: https://www.ecmwf.int/en/about/media-centre/news/2025/ecmwfs-ai-forecasts-become-operational
- 2025-02-24: [Claude 3.7 Sonnet (hybrid reasoning) and Claude Code preview](https://postcutoff.com/e/2025-02-24-claude-3-7-sonnet-claude-code/). Source: https://www.anthropic.com/news/claude-3-7-sonnet
- 2025-02-19: [Google's AI co-scientist independently reproduces an unpublished superbug discovery in 48 hours](https://postcutoff.com/e/2025-02-19-google-ai-co-scientist/). Source: https://www.nature.com/articles/s41586-026-10644-y
- 2025-02-19: [Evo 2: a 40B-parameter genome language model trained on DNA from all domains of life](https://postcutoff.com/e/2025-02-19-evo-2-genome-model/). Source: https://arcinstitute.org/news/evo-2-one-year-later
- 2025-02-10: [US and UK decline to sign the Paris AI Action Summit declaration](https://postcutoff.com/e/2025-02-10-paris-ai-action-summit/). Source: https://www.gov.uk/government/publications/international-ai-safety-report-2025
- 2025-02-09: [Sam Altman publishes "Three Observations" on the economics of AI](https://postcutoff.com/e/2025-02-09-altman-three-observations/). Source: https://blog.samaltman.com/three-observations
- 2025-02-02: [Andrej Karpathy coins "vibe coding"](https://postcutoff.com/e/2025-02-02-karpathy-vibe-coding/). Source: https://x.com/karpathy/status/1886192184808149383

Older: https://postcutoff.com/timeline/2025/01/
Newer: https://postcutoff.com/timeline/2025/03/