Gemini 3 5 Flash costs $1.50/1M input tokens and $9.00/1M output tokens as of 2026-06-27. Google publishes this model with a 1M tokens context window. o10 lists Gemini 3 5 Flash on OpenRouter at routing band C0. API slug google-gemini-3-5-flash. Verify list prices against the venue you call.

Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.

Gemini 3 5 Flash. Price, context, and routing

AnswersSelf-contained

What is Gemini 3 5 Flash?

Gemini 3 5 Flash is a chat model from google (slug: google-gemini-3-5-flash). Pick Gemini 3 5 Flash when you want Google's fast Gemini workhorse: large context, lower list price than Gemini Pro. Published input pricing starts at $1.50/1M tokens. Context window: 1M tokens.

Catalog snapshot 2026-06-27.

When should you pick Gemini 3 5 Flash?

Pick Gemini 3 5 Flash when you want Google's fast Gemini workhorse: large context, lower list price than Gemini Pro. Gemini 3 5 Flash is Flash, not Pro. Promote to Gemini Pro when the eval floor needs the heavier Gemini SKU.

How does Gemini 3 5 Flash differ from sibling models?

Gemini 3 5 Flash is Flash, not Pro. Promote to Gemini Pro when the eval floor needs the heavier Gemini SKU.

How much does Gemini 3 5 Flash cost per million tokens?

Gemini 3 5 Flash costs $1.50/1M input tokens and $9.00/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.

Sourced from gateway catalog snapshot.

Where can you run Gemini 3 5 Flash?

Gemini 3 5 Flash is configured on OpenRouter. Known host IDs: openrouter: openrouter/google/gemini-3.5-flash. This model is routable through o10 eval-gated routing.

What is Gemini 3 5 Flash's context window?

Gemini 3 5 Flash supports a 1M tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.

What o10 routing band is Gemini 3 5 Flash?

Gemini 3 5 Flash is classified at o10 routing band C0. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Production routing is enabled for this slug.

Who makes Gemini 3 5 Flash?

Gemini 3 5 Flash is attributed to source provider google in the o10 catalog. Fulfillment hosts (OpenRouter) supply API access; list pricing may differ by venue.

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Specifications

Gemini 3 5 Flash in the o10 unified catalog.

Gemini 3 5 Flash specifications
FieldValue
o10 slug`google-gemini-3-5-flash`
Typetext
BandC0
RoutableYes
Source providergoogle
Primary hostOpenRouter
Gateway ID`google/gemini-3.5-flash`
Context window1,000,000 tokens
Released2026-05-19
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Token pricing

Gateway snapshot pricing for Gemini 3 5 Flash.

Gemini 3 5 Flash token pricing
UnitPrice
Input$1.5/1M tokens
Output$9/1M tokens
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Fulfillment hosts

Upstream venues configured for Gemini 3 5 Flash.

Gemini 3 5 Flash fulfillment routes
HostUpstream model ID
openrouteropenrouter/google/gemini-3.5-flash
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Gateway provider endpoints

Endpoint-level pricing and latency from the gateway catalog.

Gemini 3 5 Flash gateway endpoints
ProviderInput ($/1M)Latency p50Uptime 1d
google$1.51852.5ms9999.0%
vertex$1.52943ms9997.6%
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Routing with o10

Eval-gated model selection for this slug.

o10 slug: google-gemini-3-5-flash. Band: C0. Routable: yes.

See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.

SourceMethodology

Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.

FAQFrequently asked questions

Common questions

How much does Gemini 3 5 Flash cost?

Gemini 3 5 Flash costs $1.50/1M input tokens and $9.00/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.

What is Gemini 3 5 Flash's context window?

Gemini 3 5 Flash supports 1M tokens in the gateway catalog snapshot. Host-specific endpoints may differ.

Which hosts serve Gemini 3 5 Flash?

Gemini 3 5 Flash (google-gemini-3-5-flash) is configured on: OpenRouter. Upstream model IDs are listed in the fulfillment routes section.

Is Gemini 3 5 Flash routable through o10?

Yes. Gemini 3 5 Flash is routable at band C0. Send model: "google-gemini-3-5-flash" or use an o10 smart routing alias.

How do I call Gemini 3 5 Flash via o10?

Use o10 slug "google-gemini-3-5-flash" or gateway ID "google/gemini-3.5-flash" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.

How does o10 route this model?

o10 routes Gemini 3 5 Flash only when per-use-case evals clear at your quality floor. Band C0 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.