Moduck

Google: Gemini 3.5 Flash

Fast Gemini model balancing multimodal reasoning, tool use, and cost

Model lab
Google
Model family
gemini-flash
Modalitiestext, image, video, audio, pdf → text
Context window1,048,576
Maximum output65,536
InputUSD 0.6 / 1M tokens
OutputUSD 3.6 / 1M tokens

Quickstart

Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to moduck/google/gemini-3-5-flash.

import os
import requests

base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "moduck/google/gemini-3-5-flash"

response = requests.post(
    f"{base_url}/chat/completions",
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    json={
        "model": model_id,
        "messages": [{"role": "user", "content": "Hello!"}],
        "stream": False,
    },
    timeout=60,
)
response.raise_for_status()
print(response.json())

Use the familiar OpenAI-style chat request format to make model integration easier.

Gemini 3.5 Flash API Pricing

TypePrice information
InputUSD 0.6 / 1M tokens
OutputUSD 3.6 / 1M tokens
ReasoningUSD 3.6 / 1M tokens
Cached inputUSD 0.06 / 1M tokens
Cache writeUSD 0.0333336 / 1M tokens

Benchmarks

High

Intelligence Index · v4.332.6
Coding Index70.1
Agentic Index26

Medium

Intelligence Index · v4.333.6
Coding Index—
Agentic Index—
BenchmarkScoreMeasurementSource
Terminal-Bench76.2success rate · Harness: Terminus-2 · Version: 2.1 · Date: 2026-05-19
SWE-Bench Pro55.1resolve rate · Dataset: public · Variant: single attempt · Date: 2026-05-19
MCP Atlas83.6success rate · Date: 2026-05-19
Toolathlon56.5success rate · Date: 2026-05-19
OSWorld-Verified78.4success rate · Date: 2026-05-19
MMMU Pro83.6accuracy · Variant: no tools · Date: 2026-05-19
CharXiv Reasoning84.2accuracy · Variant: no tools · Date: 2026-05-19
Humanity's Last Exam40.2accuracy · Dataset: full set, text + MM · Date: 2026-05-19
ARC-AGI-272.1accuracy · Date: 2026-05-19
GDPval-AA1,656Elo · Date: 2026-05-19

Performance

Measured on the Moduck gateway across live traffic, hour by hour over the last 24 hours. Time to first token is how long before anything appears; throughput is how fast the answer is written after that; end-to-end latency is the whole round trip. Figures are medians unless the card says otherwise.

Artificial Analysis measurement · High

Output speed206.2 tokens/s
Time to first token13.63 s
Time to first answer token—
End-to-end response time—
Measurement variantOutput speedTime to first tokenTime to first answer tokenEnd-to-end response time
High206.2 tokens/s13.63 s——
Medium209.24 tokens/s11.18 s——

Performance trends

Throughput206.2 tok/sCurrent
Time to first token13.63 sCurrent
End-to-end latency7.2 sCurrent
Throughput
Current206.2 tok/s
Window average212.2 tok/s
Time to first token
Current13.63 s
Window average13.6 s
End-to-end latency
Current7.2 s
Window average7.5 s
Tail latency (P99)
Current15.5 s
Window average16.9 s
Prompt cache hit rate
Current19.3%
Window average24.0%
Error rate
Current0.0%
Window average0.1%

Availability

Uptime is the share of time at least one provider serving this model responded. Availability is stricter: the share of requests actually served. A provider that answers but fails part of the traffic lowers availability without lowering uptime. Both cover the last three days.

Uptime100%At least one provider responded
Availability100%Requests actually served
Error rate0%Share of failed requests
Served requests, hour by hour
24 hours agoNow

Gemini 3.5 Flash Compare models

ModelInput priceOutput priceContext windowCapabilities
Gemini 3.5 FlashThis pageUSD 0.6 / 1M tokensUSD 3.6 / 1M tokens1,048,576Text output · Reasoning · Tool calling
Gemini 3.8 FlashUSD 0.6 / 1M tokensUSD 3 / 1M tokens1,048,576Text output · Reasoning · Tool calling
Gemini 3.7 FlashUSD 0.6 / 1M tokensUSD 3 / 1M tokens1,048,576Text output · Reasoning · Tool calling
Gemini Flash LatestUSD 0.4 / 1M tokensUSD 2.4 / 1M tokens1,048,576Text output · Reasoning · Tool calling
Gemini 3.6 FlashUSD 0.3 / 1M tokensUSD 1.5 / 1M tokens1,048,576Text output · Reasoning · Tool calling

Model specifications

Input
text, image, video, audio, pdf
Output
text
Context window
1,048,576
Maximum output
65,536
Release date
2026-05-19
Attachments
Yes
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature setting
Yes
Open weights
No

Frequently asked questions

What is Gemini 3.5 Flash for?

Fast Gemini model balancing multimodal reasoning, tool use, and cost

What inputs and outputs does Gemini 3.5 Flash support?

Recorded inputs: text, images, video, audio, PDF; outputs: text.

How is Gemini 3.5 Flash priced?

The pricing table shows the current recorded Moduck price. For example: Input USD 0.6 / 1M tokens; Output USD 3.6 / 1M tokens. See the pricing table for all units, variants, and conditions.

What specifications are recorded for Gemini 3.5 Flash?

Current model records list Context window 1,048,576 tokens; Maximum output 65,536 tokens.

What model parameter does the Quickstart use?

The example uses moduck/google/gemini-3-5-flash. This is a cataloged Moduck public or reserved ID; check your account’s available models before calling it.

Can I call this model through the Moduck API now?

This page has no verified Moduck API call for this model. A Quickstart example or reserved ID does not establish access; check the models available to your account.