google / text-generation API-only released 2026-05-19

Gemini 3.5 Flash

Name: Gemini 3.5 Flash
Price: 1.5 USD
Author: google

Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...

Input / 1M

$1.50

Output / 1M

$9.00

Context

AA Intelligence

33.6

Closed weights — available only as a hosted API text + image + video + file + audio → text Knowledge cutoff Jan 2025 View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24

$1.50

input / 1M

$9.00

output / 1M

$0.15

cached input / 1M

$10.50

1M in + 1M out

:batch variant $0.75 in · $4.50 out

Context window: 1,048,576 tokens
Max output: 65,536 tokens
Providers: 2
Cheapest provider: Google AI Studio · $0.75 / $4.50
Best throughput: —
AA Intelligence / Coding / Agentic: 33.6 / — / —

✓ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✓ File input ✓ Audio input ✓ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)

Current: $1.50 input · $9.00 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index: 33.6
AA Coding Index: —
AA Agentic Index: —

Design Arena

CategoryEloWin %Rank

agenticgamedev 1180 55.4% #12

agentichtmlslides 1162 45.8% #6

agenticslides 1244 57.5% #3

agenticslides(html) 1162 45.7% #6

agenticslides(python-pptx) 1242 57.8% #2

androidnative 1186 57.6% #15

blender3d 1022 34.2% #20

fullstack 1197 56.2% #18

godotgamedev 1098 43% #30

htmlslides 1039 46.5% #21

mobileapps 1175 50.8% #24

pptxslides 1244 57.7% #2

python-pptxslides 1247 57.4% #5

webapps 1202 52.2% #23

3d 1245 55.8% #35

asciiart 1254 59% #17

codecategories 1266 54% #33

dataviz 1236 52.9% #41

gamedev 1265 52.6% #31

svg 1254 58.3% #13

uicomponent 1268 54.1% #32

website 1267 53.7% #32

Providers

2 providers · per 1M tokens · last 30 min metrics

Provider	Quant	Context	Input	Output	Uptime	Tok/s
Google	unknown	1M	$0.75	$4.50	100%	—
Google AI Studio	unknown	1M	$0.75	$4.50	100%	—
Google	unknown	1M	$1.50	$9.00	100%	—
Google AI Studio	unknown	1M	$1.50	$9.00	100%	—
Google	unknown	1M	$1.65	$9.90	—	—
Google	unknown	1M	$2.70	$16.20	—	—
Google AI Studio	unknown	1M	$2.70	$16.20	—	—

Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation: google
Released on OpenRouter: 2026-05-19
Context window: 1,048,576 tokens
Max output: 65,536 tokens
Input: text, image, video, file, audio
Output: text
Knowledge cutoff: January 2025
Tokenizer: Gemini
Moderated by provider: No
OpenRouter id: google/gemini-3.5-flash

Compare with

Popular comparisons

GLM-5.2 open $1.78 Qwen3.8-27B open $0.78 DeepSeek-V4-Flash-0731 open $0.067 Muse Spark 1.1 $2.00 GPT-5.3-Codex $4.81 Gemini 3.6 Flash $1.50 DeepSeek-V4-Pro-0813 open $0.99 DeepSeek-V4-Pro open $0.70 Claude Opus 4.6 $10.00 GPT-5.2 $4.81

Browse

All API-only models Open-weights alternatives Best value via API

Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.