Gemini 3.5 Flash

API

Gemini 3.5 Flash is a language model from Google with a 1M-token context window. Provider list price is $1.50 per million input tokens and $9 per million output; on Allocate you pay $1.60 and $9.63. It is a closed model served over API; the weights are not published.

Route Gemini 3.5 Flash Book a call

Pricing

Provider listOn Allocate

Input, per M tokens$1.50$1.60

Output, per M tokens$9$9.63

Prices checked 2026-07-21.

Price against its peers

Gemini 3.5 Flash$1.50$9

Gemini 3.6 Flash$1.50$7.50

Qwen2.5-VL (72B) Instruct$1.95$8

Grok 4.6$2$6

Grok 4.5$2$6

Gemini 3.1 Pro$2$12

DeepSeek R1 0528 NVFP4$3$7

Meta Llama 3.1 405B Instruct$3.50$3.50

InputOutput

Provider list prices per M tokens, Gemini 3.5 Flash against its nearest language peers by price.

What a real workload costs

Take 1,000,000 requests a month at 1,200 input and 350 output tokens each: 1,200M input and 350M output tokens. At list prices that is 1,200 × $1.50 + 350 × $9 = $4,950 a month. Billed on Allocate it is $5,297.

Where it fits

Google’s workhorse: 1M tokens of context, vision built in, and a $1.50 per million input list price. The default choice for high-volume routes where cost per request decides the experience.

High-volume support and triage
Document extraction at scale
Vision and OCR pipelines

Gemini 3.5 Flash is served over API. Route traffic to it by name, meter every token, and swap it out in one click when a better fit ships.

Example usage

Point a route at google/gemini-3.5-flash and the endpoint never changes; swap the model behind it whenever you want.

api.allocate.network

curl https://api.allocate.network/v1/chat/completions \
  -H "Authorization: Bearer $ALLOCATE_KEY" \
  -d '{
    "model": "google/gemini-3.5-flash",
    "messages": [{"role": "user",
      "content": "Summarise the attached contract."}]
  }'

200 · google/gemini-3.5-flash · inside your boundary

Common questions

How much does Gemini 3.5 Flash cost per million tokens?

Provider list price is $1.50 per million input tokens and $9 per million output tokens. On Allocate you pay $1.60 in and $9.63 out.

What context window does Gemini 3.5 Flash have?

1,000,000 tokens (1M). At roughly 0.75 words per token, that is about 750k words of English text per request.

Can I fine-tune Gemini 3.5 Flash?

No. Gemini 3.5 Flash is a closed model served over API; the weights are not published. If you want a model you can train and own, start from an open-weights base in the catalog and fine-tune that.

How do I call Gemini 3.5 Flash on Allocate?

Send google/gemini-3.5-flash in the model field of the OpenAI-compatible endpoint at api.allocate.network/v1, or point a route name (like prod/support-agent) at it so you can swap the model later without a deploy.