Three major AI model events are converging in July 2026: Google DeepMind targets July 17 for the general availability of Gemini 3.5 Pro, rebuilt from scratch after missing a June launch, while DeepSeek plans to graduate its V4 family from preview to stable release on the same day. SpaceXAI's Grok 4.5 is in private beta with no confirmed public launch date, though canary strings appeared in the Grok web UI on July 6. The practical deadline for developers using DeepSeek's API is July 24, when legacy deepseek-chat and deepseek-reasoner aliases stop responding with no announced extension. Google DeepMind abandoned the Gemini 2.5 Pro base model for a new pre-training cycle due to performance gaps in mathematical reasoning, scalable vector graphics scene generation, and overall image quality. The rebuilt model reportedly features a 2 million token context window, double the 1 million cap on Gemini 2.5 Pro, along with a Deep Think Reasoning Layer and autonomous workflow capabilities, though these specifications come from third-party reporting and leaks.