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Gemini 3.5 Flash

Gemini 3.5 Flash advances the Flash line with improved coding proficiency, parallel agentic execution, stronger core reasoning, tighter instruction following, and higher-quality reasoning traces in thinking mode.

ReasoningFile InputVision (Image)Tool UseWeb SearchImplicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'google/gemini-3.5-flash',
prompt: 'Why is the sky blue?'
})

Providers

Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Context
Max Output
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
ZDR
No Training
Regional Inference
Release Date
Google
Legal:Terms
Privacy
1M64K
2.4s
188tps
$1.50/M
$9/M
Read:$0.15/M
Write:
$14/K
+ input costs
+3
05/19/2026
Google Vertex AI
Legal:Terms
Privacy
1M64K
2.3s
148tps
$1.50/M
$9/M
Read:$0.15/M
Write:
$14/K
+ input costs
+3
US
EU
05/19/2026