Pricingby GlyphGemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
Ways to buy 7
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
global-flex, cheapest · cached $0.037 | $0.375 | $1.88 | $0.375 / $1.88-50% vs list | $0.037 | -50% vs list |
flex · cached $0.037 | $0.375 | $1.88 | $0.375 / $1.88-50% vs list | $0.037 | -50% vs list |
The lab's own API · cached $0.075 | $0.75 | $3.75 | $0.75 / $3.75List price | $0.075 | List price |
global · cached $0.075 | $0.75 | $3.75 | $0.75 / $3.75Same as list | $0.075 | Same as list |
us · cached $0.083 | $0.825 | $4.13 | $0.825 / $4.13+10% vs list | $0.083 | +10% vs list |
global-priority · cached $0.135 | $1.35 | $6.75 | $1.35 / $6.75+80% vs list | $0.135 | +80% vs list |
priority · cached $0.135 | $1.35 | $6.75 | $1.35 / $6.75+80% vs list | $0.135 | +80% vs list |
USD per 1M tokens; batch $0.375 in, $1.88 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $150.00 direct.
Kong AI Gateway$150.00+0%
LiteLLM$150.00+0%
Neon AI Gateway$150.00+0%
Vercel AI Gateway$150.00+0%
Cloudflare AI Gateway$157.50+5%
Requesty$157.50+5%
Eden AI$158.25+5.5%
OpenRouter$158.25+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: $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. |
Qwen (Alibaba) · 1M | $2 | $6 | $2 / $6 | $3 | 1M | Lab list price | · | Qwen3.8 Max 0902 is an updated snapshot of Qwen3.8 Max from Alibaba's Qwen team. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · | Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. |
About Gemini 3.8 Flash
Takes text, image, video, files, audio in and returns text. First listed Sep 2, 2026. Up to 66K output tokens. Blended price $1.5 per 1M tokens at 3 input to 1 output. Overall score 14 on leadersboard.fru.dev (rank 14). Model id gemini-3-8-flash.
Price history
List price since Sep 2, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does Gemini 3.8 Flash cost?
$0.75 per million input tokens and $3.75 per million output tokens, with cached input at $0.075, or $0.375 and $1.88 through the Batch API.
What is the context window of Gemini 3.8 Flash?
1M tokens, with up to 66K tokens of output.
Where is Gemini 3.8 Flash cheapest?
Of 7 routes tracked, Google Vertex AI is cheapest at $0.375 input and $1.88 output per million tokens.