Gemini 3 Flash combines Gemini 3 Pro's reasoning capabilities with the Flash line's levels on latency, efficiency, and cost. It not only enables everyday tasks with improved reasoning, but is designed to tackle the most complex agentic workflows.
Gemini 3 Flash uses several new features to improve performance, control, and multimodal fidelity:
Thinking level: Use the thinking_level parameter to control the amount
of internal reasoning the model performs (minimal, low, medium, or
high) to balance response quality, reasoning complexity, latency, and
cost. The thinking_level parameter replaces thinking_budget for
Gemini 3 models.
For details on the different thinking levels, see Thinking.
Thought signatures: Stricter validation of thought signatures improves reliability in multi-turn function calling.
Media resolution: Use the media_resolution parameter (low, medium,
high, or ultra high) to control vision processing for multimodal inputs,
impacting token usage and latency. See Get started with
Gemini 3
for default resolution settings.
IMAGE modality.IMAGE modality instead of
the DOCUMENT modality in usage_metadata.Multimodal function responses: Function responses can now include multimodal objects like images and PDFs in addition to text.
Streaming Function calling: Stream partial function call arguments to improve user experience during tool use.
For more information on using these features, see Get started with Gemini 3.
Try in Agent Platform View in Model Garden (Preview) Deploy example app
gemini-3-flash-previewimage/png,
image/jpeg,
image/webp,
image/heic,
image/heif
application/pdf,
text/plain
video/x-flv,
video/quicktime,
video/mpeg,
video/mpegs,
video/mpg,
video/mp4,
video/webm,
video/wmv,
video/3gpp
audio/x-aac,
audio/flac,
audio/mp3,
audio/m4a,
audio/mpeg,
audio/mpga,
audio/mp4,
audio/ogg,
audio/pcm,
audio/wav,
audio/webm
Model availability
gemini-3-flash-previewExcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2026-06-10 UTC.