Gemini 3 Flash Preview, released by Google on December 17, 2025, is engineered for high-speed, agentic workflows. With a context window of 1 million tokens, it supports diverse input modalities like text, images, audio, video, and PDFs, producing text outputs. This model excels in interactive development and collaborative coding tasks, offering configurable reasoning levels and structured output. Its capabilities include automatic context caching and efficient tool use, making it a reliable choice for users seeking effective reasoning without the latency of larger models.
Use Cases
Here are a few ways teams apply Google: Gemini 3 Flash Preview in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.
Enhance collaborative coding tasks
Streamline interactive development
Facilitate multi-turn conversations
Assist with complex reasoning challenges
Key Features
A quick look at the capabilities that make this model useful in real projects.
1M token context window
Supports multimodal inputs
Configurable reasoning levels
Automatic context caching
Optimized for agentic workflows
Specs
Overview
Vendor
google
Model ID
google/gemini-3-flash-preview
Release
2025-12-17
Modalities & context
Input
text · image · file · audio · video
Output
text
Context
1,048,576 tokens
Parameters & defaults
Supported parameters: include_reasoning, max_tokens, reasoning, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p
Defaults: temperature 0.2, top_p 0.95
Benchmark tests: Google: Gemini 3 Flash Preview
We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.
Text
Prompt:
Write 150 words on how AI might positively upend work, leisure and creativity
AI stands to catalyze a modern Renaissance by liberating human potential from the mundane. In the workplace, AI will handle repetitive data processing and administrative overhead, shifting the human role toward high-level strategy, empathy, and complex problem-solving. This transition promises a future where "work" is defined by creative purpose rather than rote drudgery.
Leisure will be similarly transformed. As productivity surges, the traditional forty-hour week may dissolve, granting us unprecedented time to pursue personal passions. AI will act as a sophisticated concierge, curating bespoke experiences and learning paths that enrich our downtime.
Most profoundly, AI democratizes creativity. By serving as a powerful co-pilot, it lowers the barrier to entry for complex arts. An aspiring storyteller can use AI to world-build, while a non-musician can compose symphonies. AI doesn’t replace the creator; it expands the canvas, allowing the human spirit to focus on vision rather than technical execution. Ultimately, AI empowers us to spend our lives dreaming, not just doing.
Run this prompt on Upend.AI