In December, Gemini 2.0 Flash Thinking was announced as Google first logic model And an updated experimental version is now available for testing.
created 2.0 flashAnnounced earlier that month, the model “explicitly shows its thoughts” (like AI Studio), leading to better reasoning performance, with the ability to solve more complex problems. it connects gemini-2.0-flash-exp And gemini-exp-1206,

Google today Issued Gemini 2.0 Flash Thinking Experimental 01-21 (the hyphen between month and day is new to Google’s model naming scheme):
- 1 million token reference window (from 32k): This is useful for those want “Plug into a codebase or query a set of papers with more complex logic”
- Native code execution support: for better tool usage
- long output token generation
- Less frequently occurring modal paradoxes (“low probability of thought-answer paradoxes”)
We’ve also enabled code execution as a tool, so the model can decide whether to write and execute code during its response. You can enable it in the sidebar in AI Studio!
Here’s a fun example where the model offers the solution with a formula, but writes some Python code to reach… pic.twitter.com/j8wNp8Yn27
– Jack Rae (@jack_w_rae) 21 January 2025
Compared to EXP1219, it has “better performance on mathematics, science, and multimodal reasoning benchmarks”, including 73.3% on AIME2024 (math) and 74.2% on GPQA Diamond (science) benchmarks.

Demis Hassabis, CEO of DeepMind said so “Represents super fast progress from our first release last December.” more broadly:
We’ve been pioneering these types of planning systems for over a decade, starting with programs like AlphaGo, and it’s exciting to see the powerful combination of these ideas with the most capable Foundation model.
Gemini 2.0 is free for Flash Thinking experimental testing In Google AI Studio And through API. Looking forward, Sundar Pichai Is said “The progress on scaling thinking is incredible and will continue to be replicated,” “And more to come.”
Meanwhile, Google updated the mobile UI for AI Studio earlier this month:
We just shipped an updated Google AI Studio mobile experience. It’s time to signal! pic.twitter.com/68XYUqs0Wi
– Logan Kilpatrick (@OfficialLoganK) 17 January 2025
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