On Tuesday, Google DeepMind released three new Gemini models: Gemini 3.6 Flash, 3.5 Flash-Lite, and 3.5 Flash Cyber. Gemini 3.

6 Flash is described as a “workhorse model” with improved coding, knowledge work, and multimodal performance, while reducing token usage by up to 17% compared to its predecessor 3.

5 Flash, making it cheaper. The 3.5 Flash-Lite is the most cost-effective model in the class. The 3.

5 Flash Cyber is a specialized model fine-tuned for finding and fixing cybersecurity vulnerabilities and will be exclusively available to governments and trusted partners as part of a limited access pilot program.

Google says the focus of these releases is to deliver efficiency, latency, and reliability to customers building AI agents at scale.

The launch is notable not just for what shipped — cheaper, faster models optimized for coding, efficiency, and cybersecurity — but also for what did not: the long-anticipated update to Google’s flagship model, Gemini 3.

5 Pro, which was last updated in February. In the interim, OpenAI has released GPT-5.5 and begun rolling out GPT-5.

6, while Anthropic has launched Claude Opus 4.

8, Claude Sonnet 5, and expanded access to its frontier Fable 5 model, highlighting the intense release pace of rival labs.

Google teased the Pro release as part of the 3.5 Flash launch in May, saying the Pro version was “already being used internally, and we look forward to rolling it out next month.

” Last week, Bloomberg reported that Google was facing internal delays in launching 3.5 Pro as it struggled to meet internal performance goals.

Gemini Pro models are generally Google’s highest-capability offerings for complex reasoning and coding tasks, while Flash models prioritize lower cost and faster response times for production applications.

Google DeepMind product lead Logan Kilpatrick said Tuesday that the company is currently testing Gemini 3.5 Pro with partners and hopes to “land soon.

” He also noted that the team has started its most ambitious pre-training run yet for Gemini 4.