What is Gemini 3.5 Flash?
Gemini 3.5 Flash is a language model in the o10 fulfillment catalog (slug: gemini-3.5-flash). Published input pricing starts at $1.50/1M tokens. Context window: 1M tokens.
Catalog snapshot 2026-06-27.
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 Google Gemini at routing band C3.
Last updated: 2026-06-27. Full catalog
Gemini 3.5 Flash — specs, hosts, and routing
AnswersSelf-contained
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 Google Gemini. Each host maps to an upstream model ID listed in the fulfillment routes table. 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 C3. 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 (Google Gemini) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
Gemini 3.5 Flash in the o10 unified catalog.
| Field | Value |
|---|---|
| o10 slug | `gemini-3.5-flash` |
| Type | text |
| Band | C3 |
| Routable | Yes |
| Source provider | |
| Primary host | Google Gemini |
| Gateway ID | `google/gemini-3.5-flash` |
| Context window | 1,000,000 tokens |
| Released | 2026-05-19 |
02Deep dive
Token pricing
Gateway snapshot pricing for Gemini 3.5 Flash.
| Unit | Price |
|---|---|
| Input | $1.5/1M tokens |
| Output | $9/1M tokens |
03Deep dive
Fulfillment hosts
Upstream venues configured for Gemini 3.5 Flash.
| Host | Upstream model ID |
|---|---|
| gemini/gemini-3.5-flash |
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
| Provider | Input ($/1M) | Latency p50 | Uptime 1d |
|---|---|---|---|
| $1.5 | 1852.5ms | 9999.0% | |
| vertex | $1.5 | 2943ms | 9997.6% |
05Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: gemini-3.5-flash. Band: C3. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/economy) 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 (gemini-3.5-flash) is configured on: Google Gemini. 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 C3. Send model: "gemini-3.5-flash" or use an o10 smart routing alias.
How do I call Gemini 3.5 Flash via o10?
Use o10 slug "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 C3 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.