Model launches
Musk says Grok V9-Medium has finished training
An announcement, not a release. The brief.
On 25 May 2026 Musk said xAI's ~1.5T-parameter Grok V9-Medium had finished training.
What happened. On 25 May, Elon Musk said xAI's V9-Medium — reportedly ~1.5 trillion parameters, around three times the current production model — had finished training, with internal evals described as positive. A mid-June release was floated.
The status. Unverified. By mid-June there was no confirmed release date, model card or independent benchmarks, and the separately hyped Grok 5 remained in training (attribute, don't assert).
Sources
- Grok AI New Model Triples Parameter Count, Targets Coding Lead: Release Expected Mid-June — Tech Times, 28 May 2026
- Grok 5: Release Date & All We Know So Far (June 2026) — Fello AI, 5 June 2026