gemini-2.5-flash

proprietary

Our best model in terms of price-performance, offering well-rounded capabilities. 2.5 Flash is best for large scale processing, low-latency, high volume tasks that require thinking, and agentic use cases.

Context
1.0M
Max output
66K
Input price
$0.3/1M tokens
Output price
$2.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Creator Google AI
Licenseproprietary
Statusactive
Typechat
Input modalitiestext, image, video, audio
Output modalitiestext, image, audio
Open weightNo
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output66K tokens
Reasoning tokens—
Knowledge cutoff
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Generate ContentPOST
Generate text from multimodal inputhttps://us-central1-aiplatform.googleapis.com/v1beta/models/{model}:generateContent
Stream ContentPOST
Stream text generation responseshttps://us-central1-aiplatform.googleapis.com/v1beta/models/{model}:streamGenerateContent

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$0.3—$2.5
Priority$0.54—$4.5
Flex$0.15—$1.25

Family Comparison: gemini-2.5

ModelContextMax outPricing
gemini-2.5-computer-use-preview-10-2025128K64K—
gemini-live-2.5-flash-preview———
gemini-2.5-flash-lite1.0M66K$0.1$0.4
gemini-2.5-flash-image-preview——$0.3$2.5
gemini-2.5-flash-image66K33K$0.3$2.5
gemini-2.5-flash-lite-preview-09-20251.0M66K$0.3$2.5
gemini-2.5-flash-native-audio-preview-12-2025131K8K$0.3$2.5
gemini-2.5-flash-preview-05-20——$0.3$2.5
gemini-2.5-flash-preview-09-20251.0M66K$0.3$2.5
gemini-2.5-flash-preview-09-25——$0.3$2.5
gemini-2.5-flash-preview-tts8K16K$0.3$2.5
gemini-2.5-flash1.0M66K$0.3$2.5
gemini-2.5-pro-preview-03-25——$1.25$10
gemini-2.5-pro-preview-05-06——$1.25$10
gemini-2.5-pro-preview-06-05——$1.25$10
gemini-2.5-pro-preview-tts8K16K$1.25$10
gemini-2.5-pro1.0M66K$1.25$10

API

GET/v1/models/vertex/gemini-2.5-flash

gemini-2.5-flash

Our best model in terms of price-performance, offering well-rounded capabilities. 2.5 Flash is best for large scale processing, low-latency, high volume tasks that require thinking, and agentic use cases.

Changes · 11 entries
gemini-2.5-flashupdatee3d7dedAug 31, 2026, 04:13 AM
descriptionThe Interactions API is now generally available. We recom...→Our best model in terms of price-performance, offering we...
gemini-2.5-flashupdate88d97e5Jun 30, 2026, 04:49 AM
descriptionOur best model in terms of price-performance, offering we...→The Interactions API is now generally available. We recom...
gemini-2.5-flashupdate36c567eMar 27, 2026, 07:38 PM
deprecation_date2026-06-17
successorgemini-3-flash-preview
gemini-2.5-flashupdatefa2bbbbMar 24, 2026, 05:22 AM
descriptiona Latina Français Indonesia Italiano Polski Português – B...→Our best model in terms of price-performance, offering we...
taglinea Latina Français Indonesia Italiano Polski Português – B...→Our best model in terms of price-performance, offering we...
gemini-2.5-flashupdate1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
gemini-2.5-flashupdateb301ebeMar 23, 2026, 11:47 PM
descriptiona Latina Français Indonesia Italiano Polski Português – B...
licenseproprietary
taglinea Latina Français Indonesia Italiano Polski Português – B...
open_weightno
gemini-2.5-flashupdate2b100acMar 23, 2026, 05:30 AM
model_typechat
gemini-2.5-flashupdate7a4f1f6Mar 22, 2026, 05:43 AM
modalitiesoutput["text","image"]→["text","image","audio"]
pricinginput$0.3output$2.5batch input$0.15batch output$1.25tiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
gemini-2.5-flashupdateb50649fMar 21, 2026, 11:58 PM
successorgemini-3-flash-preview
tools["function_calling"]
endpoints["generateContent","streamGenerateContent"]
gemini-2.5-flashupdatec9a70c5Mar 21, 2026, 08:12 AM
deprecation_dateJune 17, 2026→2026-06-17
knowledge_cutoffJanuary 2025→2025-01
gemini-2.5-flashcreate7f5c66fMar 21, 2026, 05:16 AM