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Google delays Gemini 3.5 Pro launch to July as it tweaks its new frontier AI model
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Demis Hassabis, CEO of Google's DeepMind.Andrej Sokolow/picture alliance via Getty Images
2026-06-24T18:39:25.517Z
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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. 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 last year, Anthropic and OpenAI are continuing to pull ahead of Google in coding, which has emerged as the first major enterprise use case 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 and on the AI benchmarking site LMArena, 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 Business Insider floated at I/O. That includes criticisms that Flash consumed tokens too quickly.
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Hugh Langley
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Hugh is a senior correspondent at Business Insider where he writes about Google, tech, and wealth. His work has been cited by The New York Times, Bloomberg, Reuters, The Wall Street Journal, and other outlets.Get an alert whenever I publish a story.Got a tip? You can reach him using the secure messaging app Signal (hughlangley.01) or email (hlangley@businessinsider.com). We can keep sources anonymous.Some of Hugh's scoops and features:– Google told staff worried about Pentagon AI deals that it's 'leaning more' into national security contracts– Google is building its answer to OpenClaw– Google to let software engineers use AI assistants in job interviews– Larry Page is moving business out of California ahead of wealth tax– Internal document reveals Meta's AI targets– Google pushes more employees to use AI, and not just engineers– Big Tech's AI love fest is getting messy– The secrets of Larry Page's money man– The Goldman prodigy behind Silicon Valley's city of the future– Alphabet's Verily plans to to restructure ahead of fresh investment– How Google found its AI hype guy– 'Godfather of AGI' Ben Goertzel courted Epstein for funding, emails reveal– Inside the family offices of Larry Page and Sergey Brin
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