Pricingby GlyphGemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed.
Ways to buy 9
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
global-flex, cheapest · cached $0.075 | $0.75 | $4.5 | $0.75 / $4.5-50% vs list | $0.075 | -50% vs list |
flex · cached $0.075 | $0.75 | $4.5 | $0.75 / $4.5-50% vs list | $0.075 | -50% vs list |
The lab's own API · cached $0.15 | $1.5 | $9 | $1.5 / $9List price | $0.15 | List price |
global · cached $0.15 | $1.5 | $9 | $1.5 / $9Same as list | $0.15 | Same as list |
us · cached $0.165 | $1.65 | $9.9 | $1.65 / $9.9+10% vs list | $0.165 | +10% vs list |
From the platform pricing page | $1.8 | $10.8 | $1.8 / $10.8+20% vs list | n/a | +20% vs list |
From the platform pricing page | $1.88 | $11.3 | $1.88 / $11.3+25% vs list | n/a | +25% vs list |
global-priority · cached $0.27 | $2.7 | $16.2 | $2.7 / $16.2+80% vs list | $0.27 | +80% vs list |
priority · cached $0.27 | $2.7 | $16.2 | $2.7 / $16.2+80% vs list | $0.27 | +80% vs list |
USD per 1M tokens; batch $0.75 in, $4.5 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $330.00 direct.
Kong AI Gateway$330.00+0%
LiteLLM$330.00+0%
Neon AI Gateway$330.00+0%
Vercel AI Gateway$330.00+0%
Cloudflare AI Gateway$346.50+5%
Requesty$346.50+5%
Eden AI$348.15+5.5%
OpenRouter$348.15+5.5%
HeliconeNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
Google · 131K | $1.5 | $9 | $1.5 / $9 | $3.38 | 131K | Lab list price | · | Gemini Omni 1.2 Flash is Google's native multimodal video generation and editing model, the successor to Gemini Omni 1.1 Flash. |
Google · 131K | $1.5 | $9 | $1.5 / $9 | $3.38 | 131K | Lab list price | · | Gemini Omni 1.1 Flash is Google's native multimodal video generation and editing model, the generally available successor to Gemini Omni Flash Preview. |
Google · 1MCheapest: $2 on Google Gemini API (flex) | $2 | $10 | $2 / $10 | $4 | 1M | $2 on Google Gemini API (flex) | · | Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. |
Google · 66K | $1.5 | $7.5 | $1.5 / $7.5 | $3 | 66K | Lab list price | · | Nano Banana 2.1 (Gemini Nano Banana 2.1) is Google's image generation and editing model on the Flash tier, succeeding Nano Banana 2 and Nano Banana Pro. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. |
Anthropic · 1M | $2 | $10 | $2 / $10 | $4 | 1M | Lab list price | · | Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · | Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks. |
About Gemini 3.5 Flash
Takes text, image, video, files, audio in and returns text. First listed May 20, 2026. Up to 66K output tokens. Blended price $3.38 per 1M tokens at 3 input to 1 output. Overall score 1 on leadersboard.fru.dev (rank 40). Model id gemini-3-5-flash.
Price history
List price since May 20, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does Gemini 3.5 Flash cost?
$1.5 per million input tokens and $9 per million output tokens, with cached input at $0.15, or $0.75 and $4.5 through the Batch API.
What is the context window of Gemini 3.5 Flash?
1M tokens, with up to 66K tokens of output.
Where is Gemini 3.5 Flash cheapest?
Of 9 routes tracked, Google Vertex AI is cheapest at $0.75 input and $4.5 output per million tokens.