Google's Gemini 3.5 Pro Release Slips to July

Google has delayed the release of its Gemini 3.5 Pro AI model from June to July to gather more feedback from early testers and refine the model. The delay comes amid intense competition from Anthropic and OpenAI, which are pulling ahead in coding capabilities. Google CEO Sundar Pichai had previously announced a June launch at the I/O developer conference.

The release date for Google's next frontier AI model has been pushed to July, Business Insider has learned. The company previously said it planned to roll out the new Gemini 3.5 Pro model in June. However, it is now targeting a July launch as it spends extra time gathering feedback from early testers and tweaking the model, according to a person familiar with the matter. Google teased the new model at its I/O developer conference in May but said it wasn't quite ready https://www.businessinsider.com/google-io-2026-gemini-3-5-pro-2026-5 . At the time, CEO Sundar Pichai said the model would launch "next month." A Google spokesperson declined to comment. With this upcoming model, the pressure is on for Google at a moment of intense competition among the AI labs. While Gemini 3 outperformed expectations https://www.businessinsider.com/google-company-turnaround-moment-reasons-ai-race-gemini-2025-11 last year, Anthropic and OpenAI are continuing to pull ahead of Google in coding, which has emerged as the first major enterprise use case https://www.businessinsider.com/ai-coding-agents-tools-software-engineering-jobs-future-2025-6 for modern AI. The source said that Google pushed the launch date back so it could spend more time gathering real-world use cases from early testers. The new model has been available to some users on Google's Antigravity platform https://www.reddit.com/r/GeminiAI/comments/1u2x9ht/gemini35propreview spotted in antigravity cli/ and on the AI benchmarking site LMArena https://x.com/WesRoth/status/2069737309491102203 , they said. The new Gemini 3.5 Pro model is expected to be better at long-horizon tasks and powering agents. Google has also incorporated feedback from its recent Flash 3.5 model into 3.5 Pro, the source said, confirming a theory that https://www.businessinsider.com/why-google-delayed-gemini-3-5-pro-ai-model-2026-5 Business Insider floated https://www.businessinsider.com/why-google-delayed-gemini-3-5-pro-ai-model-2026-5 at I/O. That includes criticisms that Flash consumed tokens too quickly. Have something to share? Contact this reporter via email at hlangley@businessinsider.com or Signal at 628-228-1836. Use a personal email address and a non-work device; here's our guide to sharing information securely .