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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
Release Date
Google
Legal:Terms
Privacy
1M64K
1.9s
194tps
$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
2.1s
169tps
$1.50/M
$9/M
Read:$0.15/M
Write:
$14/K
+ input costs
+3
05/19/2026