Gemini 2.5 Flash-Lite Preview
Last Updated on: Sep 12, 2025
Gemini 2.5 Flash-Lite Preview
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What is Gemini 2.5 Flash-Lite Preview?
Gemini 2.5 Flash‑Lite is Google's most cost-efficient and lowest-latency variant in the Gemini 2.5 family, currently available in preview. It’s designed for high-throughput tasks like classification, summarization, and translation, delivering exceptional performance—better than former Flash‑Lite versions—while offering developer control over reasoning depth via a “thinking budget” toggle .
Who can use Gemini 2.5 Flash-Lite Preview & how?
  • Enterprise Developers & API Users: Ideal for mission-critical workflows that require speed and scalability.
  • Data & Compliance Teams: Use it for rapid multimodal document analysis and routing at scale.
  • AI & Agent Builders: Invoke tools like search or code execution with controlled reasoning.
  • Localization Teams: Fast translation of text, images, audio, or video content.
  • SaaS & High-Volume Clients: Leverage the preview for cost-optimized, real-time classification and summarization pipelines.

How to Use Gemini 2.5 Flash-Lite?
  • Access via Google AI Studio or Vertex AI: The preview model `gemini-2.5-flash-lite-preview-06-17` is available now.
  • Send Text, Image, Audio, or Video Input: Get rapid text responses optimized for throughput.
  • Adjust Thinking Budget: Toggle reasoning on or off to balance cost, latency, and output quality.
  • Scale Large-Scale Tasks: Use for classification, summarization, routing, translation—tasks demanding speed and volume.
  • Monitor & Tune Usage: Track latency, throughput, and token cost; consider caching or batching to optimize performance.
What's so unique or special about Gemini 2.5 Flash-Lite Preview?
  • Fastest & Cheapest Gemini 2.5 Model: Optimized for high throughput with minimal delay in preview form.
  • Thinking Budget Control: Developers choose when the model “thinks,” toggling reasoning for efficiency.
  • Massive 1M-Token Context: Handles extensive inputs across text, code, visuals, audio, and video.
  • Multimodal Input Support: Accepts diverse formats in a single call—text, images, audio, video.
  • Better Than Previous Lite Models: Offers stronger performance across coding, math, reasoning, and vision than older flash versions.
Things We Like
  • Unmatched speed and throughput—ideal for enterprise pipelines
  • Cost-effective with configurable reasoning
  • Huge context window supports long inputs
  • Runs multimodal workloads in one model
  • Developer-friendly access via API and SDK
Things We Don't Like
  • Still in preview—may change before stable release
  • Requires developer integration; no UI yet
  • Deep thinking may increase cost and latency if not tuned
Photos & Videos
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Pricing
Freemium

Free

$ 0.00

Limited features available on free plan

Paid

custom

  • Input price: 1) $0.10 (text / image / video) 2) $0.50 (audio)
Output price: 1) $2.50
  • Context caching: 1) $0.075 (text / image / video) 2) $0.25 (audio)
3) $1.00 / 1,000,000 tokens per hour (storage price)
  • Grounding with Google Search: 1,500 RPD (free, limit shared with Flash-Lite RPD), then $35 / 1,000 requests
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FAQs

It’s Google’s fastest, cheapest Gemini 2.5 variant, currently in preview for high-volume workloads.
It delivers the lowest latency of any Gemini 2.5 model and decodes significantly faster than legacy Flash‑Lite versions.
Yes—you can toggle the “thinking budget” on or off via API to control compute, latency, and cost.
It accepts text, images, audio, and video in the same model call.
Yes—the preview is the most cost-efficient 2.5 model, optimized for speed and affordability.

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