Gemini 3.5 Pro Leaked: 'Deep Thinking Mode' and 2M Context Window
A leak indicates that Google is preparing the launch of Gemini 3.5 Pro, featuring a new 'Deep Thinking Mode' and a 2-million-token context window, signalling significant progress in AI.

What happened?
Information was recently published suggesting that Google DeepMind is close to launching an updated version of its AI model, Gemini 3.5 Pro. According to the leak, the new features include a 'Deep Thinking Mode' and a context window of 2 million tokens. This information has not been officially confirmed by Google.
Key facts
| Modell | Gemini 3.5 Pro |
|---|---|
| Kontextfönster | 2 miljoner tokens |
| Ny funktion | Deep Thinking Mode |
”Recent leaks suggest that the company is preparing to launch Gemini 3.5 Pro, bringing massive advancements in reasoning, coding, long-context handling, and autonomous planning.”
”One of the most anticipated additions is a dedicated Deep Thinking mode, heavily optimized to improve multi-step planning and tool orchestration.”
”The leak claims Gemini 3.5 Pro will maintain an industry-leading 2 million-token context window.”
Why it matters
These rumours suggest a major architectural upgrade for Gemini, focusing on improved reasoning capabilities, code generation, handling of long contexts, and autonomous planning. If the information is correct, the model's 'Deep Thinking Mode' could make it more capable of handling complex problems, agentic workflows, and in-depth analysis. The expanded context window would allow for the processing of large datasets, such as entire code repositories or extensive videos, without loss of context.
Who is affected?
The potential for improved AI models directly affects AI developers, engineers, and researchers working with complex applications and systems. Companies already using Google Gemini or considering implementing advanced AI could benefit from these advancements. End-users of AI-powered services could also indirectly gain access to more capable and efficient tools.
What else you should know
This information is based on leaks and rumours; therefore, it should be treated with some caution until Google DeepMind makes an official statement.
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