Gemini 2.5 Flash

Gemini 2.5 Flash is our best model in terms of price and performance, and offers well-rounded capabilities. Gemini 2.5 Flash is our first Flash model that features thinking capabilities, which lets you see the thinking process that the model goes through when generating its response.

For even more detailed technical information on Gemini 2.5 Flash (such as performance benchmarks, information on our training datasets, efforts on sustainability, intended usage and limitations, and our approach to ethics and safety), see our technical report on our Gemini 2.5 models.

2.5 Flash

Try in Vertex AI View in Model Garden (Preview) Deploy example app

Note: To use the "Deploy example app" feature, you need a Google Cloud project with billing and Vertex AI API enabled.
Model ID gemini-2.5-flash
Supported inputs & outputs
  • Inputs:
    Text, Code, Images, Audio, Video
  • Outputs:
    Text
Token limits
  • Maximum input tokens: 1,048,576
  • Maximum output tokens: 65,535 (default)
Capabilities
Usage types
Input size limit 500 MB
Technical specifications
Images
  • Maximum images per prompt: 3,000
  • Maximum image size: 7 MB
  • Supported MIME types:
    image/png, image/jpeg, image/webp
Documents
  • Maximum number of files per prompt: 3,000
  • Maximum number of pages per file: 1,000
  • Maximum file size per file for the API or Cloud Storage imports: 50 MB
  • Maximum file size per file for direct uploads through the console: 7 MB
  • Supported MIME types:
    application/pdf, text/plain
Video
  • Maximum video length (with audio): Approximately 45 minutes
  • Maximum video length (without audio): Approximately 1 hour
  • Maximum number of videos per prompt: 10
  • Supported MIME types:
    video/x-flv, video/quicktime, video/mpeg, video/mpegs, video/mpg, video/mp4, video/webm, video/wmv, video/3gpp
Audio
  • Maximum audio length per prompt: Appropximately 8.4 hours, or up to 1 million tokens
  • Maximum number of audio files per prompt: 1
  • Speech understanding for: Audio summarization, transcription, and translation
  • Supported MIME types:
    audio/x-aac, audio/flac, audio/mp3, audio/m4a, audio/mpeg, audio/mpga, audio/mp4, audio/ogg, audio/pcm, audio/wav, audio/webm
Parameter defaults
  • Temperature: 0.0-2.0 (default 1.0)
  • topP: 0.0-1.0 (default 0.95)
  • topK: 64 (fixed)
  • candidateCount: 1–8 (default 1)
Supported regions

Model availability

(Includes dynamic shared quota & Provisioned Throughput)
  • Global
    • global
  • United States
    • us-central1
    • us-east1
    • us-east4
    • us-east5
    • us-south1
    • us-west1
    • us-west4
  • Europe
    • europe-central2
    • europe-north1
    • europe-southwest1
    • europe-west1
    • europe-west4
    • europe-west8

ML processing
  • United States
    • Multi-region
  • Canada
    • northamerica-northeast1+
  • Europe
    • Multi-region
    • europe-west2* +
    • europe-west3* +
    • europe-west9* +
  • Asia Pacific
    • asia-northeast1* +
    • asia-northeast3* +
    • asia-south1* +
    • asia-southeast1+
    • australia-southeast1* +
See Data residency for more information.
Knowledge cutoff date January 2025
Versions
  • gemini-2.5-flash
    • Launch stage: GA
    • Release date: June 17, 2025
    • Discontinuation date: June 17, 2026
  • gemini-live-2.5-flash
    • Launch stage: Private GA
    • Release date: June 17, 2025
Security controls
See Security controls for more information.
Supported languages See Supported languages.
Pricing See Pricing.
+ Supervised fine tuning not supported
* Available for 128K context window only, supervised fine tuning not supported

2.5 Flash

Try in Vertex AI (Preview) Deploy example app

Note: To use the "Deploy example app" feature, you need a Google Cloud project with billing and Vertex AI API enabled.
Model ID gemini-2.5-flash-preview-09-2025
Supported inputs & outputs
  • Inputs:
    Text, Code, Images, Audio, Video
  • Outputs:
    Text
Token limits
  • Maximum input tokens: 1,048,576
  • Maximum output tokens: 65,535 (default)
Capabilities
Usage types
Technical specifications
Images
  • Maximum images per prompt: 3,000
  • Maximum image size: 7 MB
  • Supported MIME types:
    image/png, image/jpeg, image/webp
Documents
  • Maximum number of files per prompt: 3,000
  • Maximum number of pages per file: 1,000
  • Maximum file size per file for the API or Cloud Storage imports: 50 MB
  • Maximum file size per file for direct uploads through the console: 7 MB
  • Supported MIME types:
    application/pdf, text/plain
Video
  • Maximum video length (with audio): Approximately 45 minutes
  • Maximum video length (without audio): Approximately 1 hour
  • Maximum number of videos per prompt: 10
  • Supported MIME types:
    video/x-flv, video/quicktime, video/mpeg, video/mpegs, video/mpg, video/mp4, video/webm, video/wmv, video/3gpp
Audio
  • Maximum audio length per prompt: Appropximately 8.4 hours, or up to 1 million tokens
  • Maximum number of audio files per prompt: 1
  • Speech understanding for: Audio summarization, transcription, and translation
  • Supported MIME types:
    audio/x-aac, audio/flac, audio/mp3, audio/m4a, audio/mpeg, audio/mpga, audio/mp4, audio/ogg, audio/pcm, audio/wav, audio/webm
Parameter defaults
  • Temperature: 0.0-2.0 (default 1.0)
  • topP: 0.0-1.0 (default 0.95)
  • topK: 64 (fixed)
  • candidateCount: 1–8 (default 1)
Supported regions

Model availability

(Includes dynamic shared quota & Provisioned Throughput)
  • Global
    • global
See Data residency for more information.
Knowledge cutoff date January 2025
Versions
  • gemini-2.5-flash-preview-09-2025
    • Launch stage: Public preview
    • Release date: September 25, 2025
Security controls
See Security controls for more information.
Supported languages See Supported languages.
Pricing See Pricing.