Following last month’s launch of Gemini 3 Pro, Google today announced Gemini 3 Flash for consumers and developers.
The tagline, of sorts, for Gemini 3 Flash is “frontier intelligence built for speed at a fraction of the cost.” It retains Gemini 3’s complex reasoning, multimodal/vision understanding, and performance in agentic/vibe coding tasks, but adds “Flash-level latency, efficiency and cost.” The Flash model series is Google’s most popular offering.
It unsurprisingly surpasses 2.5 Flash across the board and “significantly” outperforms 2.5 Pro across several benchmarks. 3 Flash is comparable to 3 Pro, while even beating it in some areas, including MMMU Pro, Toolathlon, and MPC Atlas.
- GPQA Diamond (scientific knowledge): 90.4%
- Humanity’s Last Exam (academic reasoning): 33.7% without tools
- MMMU Pro (multimodal understanding/reasoning): 81.2%
- SWE-Bench Verified (agentic coding): 78%
- Toolathlon (long horizon real-world software tasks): 49.4%
- MCP Atlas (multi-step workflows using MCP): 57.4%
Google touts how 3 Flash “outperforms 2.5 Pro while being 3x faster at a fraction of the cost.” This strong reasoning, tool use, and multimodal capabilities can translate to “more complex video analysis, data extraction and visual Q&A” for third-party developers building customer support agents or in-game assistants.
…priced at $0.50/1M input tokens and $3/1M output tokens (audio input remains at $1/1M input tokens).
Gemini app + AI Mode
Gemini 3 Flash is rolling out to the Gemini app now and replaces 2.5 Flash as the default model. It’s billed as a “major upgrade to your everyday AI” for delivering “smarts and speed.” For example:
…you can quickly build fun, useful apps from scratch without prior coding knowledge. Just ask Gemini to help you iterate on an idea. You can dictate stream-of-consciousness thoughts on-the-go and turn those into a prototype.
Notably, Gemini 3 Flash will be available in the model picker as two options: “Fast” for quick answers and “Thinking” for complex problems. Gemini 3 Pro will appear as “Pro” for advanced math and code prompts.
It’s also rolling out globally as the default model in AI Mode. Gemini 3 Flash lets you ask more nuanced questions. Meanwhile, Google is making Gemini 3 Pro with its generative UI and Nano Banana Pro available for everyone in the US.
… excels at grasping the nuance of your question to serve thoughtful, comprehensive responses that are visually digestible – pulling real-time local information and helpful links from across the web.
For developers, Gemini 3 Flash is available in preview via AI Studio, Google Antigravity, Gemini CLI, and Android Studio. It joins Gemini 3 Pro and Gemini 3 Deep Think from earlier this month.
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