AI Model Daily - 2026-06-29

2026-06-29 AI model news: Grok 4.5 surfaced through Elon Musk's X post as a SpaceX and Tesla private beta; Sakana Fugu Ultra remains available through Vercel AI Gateway; HappyHorse 1.1 stays high on video arenas; no fresh official releases from OpenAI, Anthropic, Google, Qwen, Mistral, Meta, Cohere, Runway, Luma, Kling, Midjourney, or Microsoft AI in this window.