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/2026/03/

# AI in March 2026

22 events: 5 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.

- 2026-03-31: [OpenAI closes record $122B funding round at $852B valuation](https://postcutoff.com/e/2026-03-31-openai-122b-funding-round/). Source: https://group.softbank/en/news/press/20260227
- 2026-03-31: [Mercor confirms breach via the LiteLLM supply-chain attack](https://postcutoff.com/e/2026-03-31-mercor-breach-litellm-supply-chain/). Source: https://fortune.com/2026/04/02/mercor-ai-startup-security-incident-10-billion/
- 2026-03-31: [Claude Code source code leaks via a source-map file in the npm package](https://postcutoff.com/e/2026-03-31-claude-code-source-leak/). Source: https://infoq.com/news/2026/04/claude-code-source-leak
- 2026-03-26: [David Sacks ends his stint as White House AI and crypto czar and becomes co-chair of PCAST](https://postcutoff.com/e/2026-03-26-david-sacks-steps-down-ai-czar-pcast/). Source: https://techcrunch.com/2026/03/26/david-sacks-is-done-as-ai-czar-heres-what-hes-doing-instead/
- 2026-03-26: [Suno v5.5 lets users sing with their own cloned voice and fine-tune personal models](https://postcutoff.com/e/2026-03-26-suno-v5-5-voices-custom-models/). Source: https://about.suno.com/blog/v5-5
- 2026-03-25: [ARC Prize launches ARC-AGI-3, an interactive game benchmark where frontier AI scored under 1%](https://postcutoff.com/e/2026-03-25-arc-agi-3-launch/). Source: https://arcprize.org/arc-agi/3
- 2026-03-25: [Study: in 32% of model pairs, the reasoning model with the lower list price costs more](https://postcutoff.com/e/2026-03-25-price-reversal-cheaper-reasoning-models/). Source: https://arxiv.org/abs/2603.23971
- 2026-03-24: [OpenAI shuts down Sora](https://postcutoff.com/e/2026-03-24-openai-shuts-down-sora/). Source: https://help.openai.com/en/articles/20001152-what-to-know-about-the-sora-discontinuation
- 2026-03-24: [Amazon acquires Fauna Robotics, maker of the kid-sized Sprout humanoid](https://postcutoff.com/e/2026-03-24-amazon-acquires-fauna-robotics/). Source: https://www.therobotreport.com/amazon-acquires-humanoid-developer-fauna-robotics/
- 2026-03-23: [Mistral releases Voxtral TTS, an open-weight 4B text-to-speech model with 3-second voice cloning](https://postcutoff.com/e/2026-03-23-mistral-voxtral-tts/). Source: https://mistral.ai/news/voxtral-tts
- 2026-03-23: [DFRLab exposes 26 AI-generated YouTube 'news' channels that farmed ~1.8B views from war coverage](https://postcutoff.com/e/2026-03-23-dfrlab-ai-youtube-war-news-network/). Source: https://dfrlab.org/2026/03/23/ai-generated-youtube-channels-co-opt-war-coverage-to-farm-nearly-two-billion-views/
- 2026-03-21: [Musk launches Terafab, a $20–25B Tesla–SpaceX–xAI AI chip fab project in Austin aiming at 1 terawatt of compute a year](https://postcutoff.com/e/2026-03-21-terafab-announced/). Source: https://electrek.co/2026/03/22/tesla-spacex-terafab-chip-factory-ai-desperation/
- 2026-03-20: [White House sends Congress a National AI Policy Framework calling for preemption of state AI laws](https://postcutoff.com/e/2026-03-20-white-house-national-ai-policy-framework/). Source: https://www.ropesgray.com/en/insights/alerts/2026/03/the-white-house-legislative-recommendations-national-policy-framework-for-artificial-intelligence-an
- 2026-03-17: [Midjourney V8 alpha: a rebuilt GPU-native model, ~5x faster, with native 2K](https://postcutoff.com/e/2026-03-17-midjourney-v8-alpha/). Source: https://docs.midjourney.com/hc/en-us/articles/32199405667853-Version
- 2026-03-16: [NVIDIA GTC 2026: Vera Rubin platform, Groq 3 LPX, Feynman preview and $1T demand outlook](https://postcutoff.com/e/2026-03-16-nvidia-gtc-2026-vera-rubin-feynman/). Source: https://blogs.nvidia.com/blog/gtc-2026-news/
- 2026-03-16: [NVIDIA previews the GR00T N2 world action model and announces Cosmos 3 at GTC 2026](https://postcutoff.com/e/2026-03-16-nvidia-gtc-2026-robotics-groot-n2-cosmos-3/). Source: https://nvidianews.nvidia.com/news/nvidia-and-global-robotics-leaders-take-physical-ai-to-the-real-world
- 2026-03-10: [AlphaEvolve improves lower bounds for nine classical Ramsey numbers](https://postcutoff.com/e/2026-03-10-alphaevolve-ramsey-lower-bounds/). Source: https://arxiv.org/abs/2603.09172
- 2026-03-09: [Fish Audio open-sources S2](https://postcutoff.com/e/2026-03-09-fish-audio-s2-open-source/). Source: https://fish.audio/blog/fish-audio-open-sources-s2/
- 2026-03-05: [OpenAI releases GPT-5.4 with native computer use](https://postcutoff.com/e/2026-03-05-gpt-5-4/). Source: https://openai.com/index/introducing-gpt-5-4/
- 2026-03-02: [Galbot raises RMB 2.5B, a record single round for Chinese embodied AI, at a >$3B valuation](https://postcutoff.com/e/2026-03-02-galbot-raises-2-5b-yuan/). Source: https://www.geekpark.net/news/360789
- 2026-03: [RAVEN machine-learning pipeline validates 118 new planets in TESS data](https://postcutoff.com/e/2026-03-25-raven-tess-118-new-planets/). Source: https://warwick.ac.uk/news/pressreleases/ai-approach-uncovers-dozens-of-hidden-planets/
- 2026-03: [Math Inc's Gauss formalises Viazovska's sphere-packing proofs in dimensions 8 and 24, fixing errors in the originals](https://postcutoff.com/e/2026-03-01-gauss-sphere-packing-formalization/). Source: https://arxiv.org/abs/2604.23468

Older: https://postcutoff.com/timeline/2026/02/
Newer: https://postcutoff.com/timeline/2026/04/