llm11

Gemini 3.5 Flash with Jev

Gemini 3.5 Flash is a model from Google, released 2026-05-19. It costs $1.50 per million input tokens and $9.00 per million output tokens, reads up to 1.05M tokens of context, and writes up to 65,536 tokens in one reply. Through llm11, set model to google/gemini-3.5-flash.

Input price
$1.50 / 1M
Output price
$9.00 / 1M
Context window
1.05M tokens
Max output
66K tokens
Cached input
$0.150 / 1M

Read from the provider's prompt cache

Released
2026-05-19
Accepts
text, image, video, file, audio
Intelligence index
32.6

Artificial Analysis, via the catalogue

Read from the live catalogue and refreshed daily. At blended list price, 21% of the 332 priced models we can call cost more.

Using Gemini 3.5 Flash with Jev

Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Gemini 3.5 Flash does the answering when Jev sends it work, or when you name it yourself. Gemini 3.5 Flash falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Today it is one of the models in that pack's live pool.

Jev is new, so we have not published results for Gemini 3.5 Flash with and without it, and this page does not invent any. Every response comes with a receipt that names the model that answered and what it cost against your most expensive model, so you can measure the pairing on your own traffic.

About JevThe System One router

What a request costs

List price arithmetic, the same sum a receipt does. llm11 adds nothing per request; the only fee is on buying credits.

RequestTokens in / outOneA thousand
Short chat turn500 / 200$0.00255$2.55
Question over retrieved documents4,000 / 500$0.011$10.50
Long document summary30,000 / 1,000$0.054$54.00

Cheaper models to try

Nearest in price and below Gemini 3.5 Flash, each within a few points of it on the intelligence index.

Cheaper alternatives to Gemini 3.5 Flash
ModelInput / 1MOutput / 1MContextIndex
SpaceXAI Grok 4.7$2.00$6.00500K46.4
Qwen Qwen3.8 Max (0902)$2.00$6.001M45.4
Qwen Qwen3.8 2.4T A95B$2.00$6.001.05M39.9
SpaceXAI Grok 4.6$2.00$6.00500K44.3

Call it

Same OpenAI request shape. Naming the model pins it, so nothing is routed, and the answer is still checked.

python

from openai import OpenAI

client = OpenAI(base_url="https://www.llm11.com/v1", api_key="llm11_live_...")

res = client.chat.completions.create(
    model="google/gemini-3.5-flash",
    messages=[{"role": "user", "content": "Hello"}],
)

More from Google

Other Google models
ModelInput / 1MOutput / 1MContext
Gemini 3.8 Flash$0.750$3.751.05M
Gemini 3.7 Flash$0.750$3.751.05M
Gemini 3.5 Flash Lite$0.300$2.501.05M
Gemini 3.6 Flash$0.750$3.751.05M
Gemini 3.1 Flash Lite$0.250$1.501.05M
Gemma 4 26B A4B $0.090$0.300262K

All 20 Google models

Questions

What is Gemini 3.5 Flash with Jev?
Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. Gemini 3.5 Flash does the answering when Jev sends it work, or when you name it yourself. Gemini 3.5 Flash falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Today it is one of the models in that pack's live pool. Routing decisions are made by Jev, TypeSafe AI's System One model.
Is Gemini 3.5 Flash a System One model?
No. Gemini 3.5 Flash answers requests. The System One model is Jev, which decides which model answers each one, so the two do different jobs and llm11 uses both.
How much does Gemini 3.5 Flash cost?
$1.50 per million input tokens and $9.00 per million output tokens. A 4,000 token prompt with a 500 token answer costs about $0.011, so a thousand of them is about $10.50. llm11 passes provider list price through and charges 5% when you buy credits.
What is the Gemini 3.5 Flash context window?
1,048,576 tokens, with up to 65,536 tokens in a single reply.
Does Gemini 3.5 Flash support tool calling and structured output?
The catalogue lists tool calling, structured output and reasoning controls.
Can I use Gemini 3.5 Flash through llm11?
Yes. Set model to google/gemini-3.5-flash on the OpenAI-compatible endpoint and the request goes to it directly, with verification still running.
Does Jev route to Gemini 3.5 Flash?
Routing decisions are made by Jev, TypeSafe AI's System One model. Gemini 3.5 Flash falls in the llm11-balanced band, and the labs and limits it meets make it eligible for that pack. Today it is one of the models in that pack's live pool.
What is a cheaper alternative to Gemini 3.5 Flash?
Nearest in price and below it: SpaceXAI Grok 4.7 at $2.00 in and $6.00 out, Qwen Qwen3.8 Max (0902) at $2.00 in and $6.00 out and Qwen Qwen3.8 2.4T A95B at $2.00 in and $6.00 out. Nearest in price and below Gemini 3.5 Flash, each within a few points of it on the intelligence index.