gemini-2.5-flash-preview-09-2025

proprietary
Context
1.0M
Max output
66K

Capabilities

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

Details

Provider Google AI
Creator google
Familygemini-2.5
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://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:generateContent
Stream ContentPOST
Stream text generation responseshttps://generativelanguage.googleapis.com/v1beta/v1beta/models/{model}:streamGenerateContent

Family Comparison: gemini-2.5

ModelContextMax outPricing
gemini-2.5-flash-image-preview———
gemini-2.5-flash-lite-preview-09-20251.0M66K—
gemini-2.5-flash-native-audio-preview-12-2025131K8K—
gemini-2.5-flash-preview-05-20———
gemini-2.5-flash-preview-09-20251.0M66K—
gemini-2.5-flash-preview-09-25———
gemini-2.5-pro-preview-03-25———
gemini-2.5-pro-preview-05-06———
gemini-2.5-pro-preview-06-05———
gemini-live-2.5-flash-preview———
gemini-2.5-flash-lite1.0M66K$0.1$0.4
gemini-2.5-flash-image66K33K$0.3$0.04
gemini-2.5-flash1.0M66K$0.3$2.5
gemini-2.5-flash-preview-tts8K16K$0.5$10
gemini-2.5-pro-preview-tts8K16K$1$20
gemini-2.5-computer-use-preview-10-2025128K64K$1.25$10
gemini-2.5-pro1.0M66K$1.25$10

API

GET/v1/models/google/gemini-2.5-flash-preview-09-2025

gemini-2.5-flash-preview-09-2025

Changes · 6 entries
gemini-2.5-flash-preview-09-2025update1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
gemini-2.5-flash-preview-09-2025update2b100acMar 23, 2026, 05:30 AM
model_typechat
licenseproprietary
page_urlhttps://ai.google.dev/gemini-api/docs/models/gemini-2.5-f...
open_weightno
gemini-2.5-flash-preview-09-2025update7a4f1f6Mar 22, 2026, 05:43 AM
modalitiesoutput["text","image"]→["text","image","audio"]
gemini-2.5-flash-preview-09-2025updateb50649fMar 21, 2026, 11:58 PM
tools["function_calling"]
endpoints["generateContent","streamGenerateContent"]
gemini-2.5-flash-preview-09-2025updatec9a70c5Mar 21, 2026, 08:12 AM
knowledge_cutoffJanuary 2025→2025-01
gemini-2.5-flash-preview-09-2025create7f5c66fMar 21, 2026, 05:16 AM