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Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite is the GA release of the efficiency tier in the Gemini 3.1 generation, with improvements in reasoning, multimodal understanding, agentic tool use, and long-context performance over 2.5 Flash Lite, plus four configurable thinking levels and a context window of 1M tokens.

Input and output price
Prices from: Input $0.25, Output $1.50, Per 1M tokens
24h uptime
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import { streamText } from 'ai'
const result = streamText({
model: 'google/gemini-3.1-flash-lite',
prompt: 'Why is the sky blue?'
})
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Model
Context
Latency
Throughput
Input
Output
Cache
Web Search
Capabilities
Providers
ZDR
No Training
Free Tier
Release Date
1M1.6 s417 tps
$0.75/M
$3.75/M
Read$0.08/M
$14/K+1 more
+3
google logo
vertex logo
09/02/2026
1M0.7 s276 tps
$0.75/M
$3.75/M
Read$0.08/M
$14/K+1 more
+3
google logo
vertex logo
08/13/2026
1M0.4 s456 tps
$0.30/M
$2.50/M
Read$0.03/M
$14/K+1 more
+3
google logo
vertex logo
07/21/2026
1M1.5 s218 tps
$1.50/M
$9/M
Read$0.15/M
$14/K+1 more
+3
google logo
vertex logo
05/19/2026
1M0.6 s193 tps
$0.50/M+1 more
$3/M+1 more
Read$0.05/M
$14/K+1 more
+3
google logo
vertex logo
12/17/2025
1M0.2 s287 tps
$0.10/M
$0.40/M
Read$0.01/M
$35/K+1 more
+3
google logo
vertex logo
06/17/2025

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