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 and the model card for Gemini 2.5 Flash .
2.5 Flash
Try in Vertex AI View in Model Garden (Preview) Deploy example app
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
- Supported
- Not supported
Usage types
- Supported
- Not supported
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/opus,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
- europe-west9 +
ML processing
- United States
- Multi-region
- Canada
- northamerica-northeast1
- Europe
- Multi-region
- europe-west2 *
- Asia Pacific
- asia-northeast1 *
- asia-northeast3 *
- asia-south1 *
- asia-southeast1
- australia-southeast1 *
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
-
gemini-2.5-flash-preview-05-20 - Launch stage: Public preview
- Release date: May 20, 2025
- Discontinuation date: July 15, 2025
-
gemini-2.5-flash-preview-04-17 - Launch stage: Public preview
- Release date: April 17, 2025
- Discontinuation date: July 15, 2025
Security controls
Pricing
* Available for 128K context window only
Image
Try in Vertex AI (Preview) Deploy example app
Model ID
gemini-2.5-flash-image-preview
Supported inputs & outputs
- Inputs:
Text , Images - Outputs:
Text and image
Token limits
- Maximum input tokens: 32,768
- Maximum output tokens: 32,768
Capabilities
- Supported
- Not supported
Usage types
- Supported
- Not supported
Input size limit
500 MB
Technical specifications
Images
- Maximum images per prompt: 3
- Maximum image size: 7 MB
- Maximum number of output images per prompt: 10
- Supported MIME types:
image/png,image/jpeg,image/webp
Documents
- Maximum number of files per prompt: 3
- Maximum number of pages per file: 3
- Maximum file size per file: 50 MB
- Supported MIME types:
application/pdf,text/plain
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
- Global
- global
Knowledge cutoff date
June 2025
Versions
-
gemini-2.5-flash-image-preview - Launch stage: Public preview
- Release date: August 26, 2025
Security controls
Pricing
Live API native audio
Gemini 2.5 Flash with Live API native audio features our cutting-edge native audio functionality for Live API . In addition to the standard Live API features, this preview model includes:
- Enhanced voice quality and adaptability: Live API native audio provides richer, more natural voice interactions with 30 HD voices in 24 languages .
- Introducing Proactive Audio: When Proactive Audio is enabled, the model only responds when it's relevant. The model generates text transcripts and audio responses proactively only for queries directed to the device, and does not respond to non-device directed queries.
- Introducing Affective Dialog: Models using Live API native audio can understand and respond appropriately to users' emotional expressions for more nuanced conversations.
For more information on Live API, see our standalone Live API documentation .
Model ID
gemini-live-2.5-flash-preview-native-audio
Supported inputs & outputs
- Inputs:
Audio , Video - Outputs:
Audio
Token limits
- Maximum input tokens: 1,048,576
- Maximum output tokens: 128K (default)
Capabilities
- Supported
- Grounding with Google Search
- Function calling
- Live API Preview feature
- Not supported
Usage types
- Supported
- Not supported
Input size limit
500 MB
Technical specifications
Video
- Maximum screenshare length: Approximately 10 minutes
- Supported MIME types:
video/x-flv,video/quicktime,video/mpeg,video/mpegs,video/mpg,video/mp4,video/webm,video/wmv,video/3gpp
Audio
- Maximum conversation length: Approximately 10 minutes
- 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/opus,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
- United States
- us-central1
Knowledge cutoff date
January 2025
Versions
-
gemini-live-2.5-flash-preview-native-audio - Launch stage: Public preview
- Release date: June 17, 2025
Security controls
Pricing
