Gemini 3 Flash

Preview · Language, Multimodal, Reasoning

Gemini 3 Flash is a multimodal language model in Google's Gemini Flash line, released in preview on 17 December 2025 through the Gemini API and Vertex AI and as the default model in the Gemini app. Google describes it as combining Gemini 3 Pro-level reasoning with the latency and cost of the Flash line. It was still a preview model on 1 October 2026. [1] [2] [3] Primary source

Timeline of Gemini 3 Flash →

Claims and evidence

  • Released Released as a preview model for developers and enterprises; rollout in the Gemini app and AI Mode in Search started the same day. Primary source[1] [4]December 17, 2025 [3]gemini-3-flash-preview: release date [5]Versions: Release date
  • Status PreviewStill a preview model in the Gemini API and on Gemini Enterprise Agent Platform on 2026-10-01; no shutdown date announced. Primary source[2]Gemini 3, Preview [3]Gemini 3 models, Preview models: gemini-3-flash-preview [5]Versions: Launch stage
  • Replaced by Gemini 3.6 FlashRecommended replacement as listed on the Gemini deprecations page when checked on 2026-10-01; no shutdown date announced. Primary source[3]gemini-3-flash-preview: recommended replacement
  • Successor of Gemini 2.5 FlashThe announcement says Gemini 3 Flash replaces 2.5 Flash as the default model in the Gemini app and builds on the Flash series. Primary source[1]For everyone: Gemini 3 Flash is rolling out globally
  • Derived from (other) Gemini 3 ProThe model card says Gemini 3 Flash is based on Gemini 3 Pro and built off its reasoning foundation; it does not name the method. Primary source[6]Model Information: Model dependencies
  • Change · Availability Replaced Gemini 2.5 Flash as the default model in the Gemini app and began rolling out as the default model for AI Mode in Search.Compared with Gemini 2.5 Flash Primary source[1]
  • Change · Architecture Based on Gemini 3 Pro, according to Google's model card, which says it builds on that model's reasoning foundation.Compared with Gemini 2.5 Flash Primary source[6]Model Information: Model dependencies
  • Change · Tool use Supports the Computer Use tool in the Gemini API, added on 29 January 2026.Compared with Gemini 2.5 Flash Primary source[4]January 29, 2026 [7]Capabilities: Computer use
  • Input text, image, audio, videoPDF input is also supported. Primary source[7]Supported data types: Inputs [6]Inputs
  • Output text Primary source[7]Supported data types: Output
  • Feature Reasoning modeThinking levels set the balance between quality, cost and latency. Primary source[7]Capabilities: Thinking [6]Description
  • Feature Function calling Primary source[7]Capabilities: Function calling
  • Feature Computer useComputer Use tool support added on 2026-01-29. Primary source[4]January 29, 2026 [7]Capabilities: Computer use
  • Context window 1,048,576 tokensInput token limit; the output limit is 65,536 tokens. The model card gives a context window of up to 1M. Primary source[7]Token limits: Input token limit
  • Parameters Not disclosedNot disclosed by Google. No claim madeNo source
  • Access API, consumer appAPI: the Gemini API (Google AI Studio) and Vertex AI, in preview. Consumer: the Gemini app and AI Mode in Search. Primary source[1]Try Gemini 3 Flash today

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