Gemini 3.8 Flash

Name: Gemini 3.8 Flash
Brand: google
Price: 0.75 USD
Availability: OnlineOnly

Google's most capable Flash model at release, with gains over 3.7 Flash in software engineering, agent tasks and multi-step reasoning. It accepts text, images, audio, video and files across a 1M-token window, with up to 65,536 output tokens.

Ranks#2Analysis & Critique#2Business Strategy#2Historical Analysis#2Research#2Summarization#2Travel Planning

OpenRouter

Provider: Google AI
Released: 2026-09-02
Size: LARGE
Free API (OpenRouter): No
Per 1M tokens: $0.75 in · $3.75 out
Rival’s tab: $1.48; 58/58 receipts survived

Free API availability

No free endpoint for Gemini 3.8 Flash was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 9 Sep 2026OpenRouter usage limits

View API options

Get API accessProvider and language code samples

2 hostsInOutContextUptime

Google Vertex AI$0.38 in$1.88 out1M96.4% up Google AI Studio$0.75 in$3.75 out1M99.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.

Provider

fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"google/gemini-3.8-flash"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Deep analysisPsychometrics, taste index, writing DNA

Writing DNA

Stylometric Fingerprint

Based on 27 text responses

Tick = global average

Vocabulary Diversity63%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length19.7 words

Average words per sentence.

Hedging0.17

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting4.0

**Bold** markers per 1,000 characters.

List Usage2.4

Bullet and numbered list items per 1,000 characters.

Section Structure0.84

Markdown headings per 1,000 characters.

Emoji Usage0.01

Emoji per 1,000 characters.

Transitions0.06

"However", "moreover", "furthermore" per 100 words.

Opening Habits

Consistency

80%

Across 27 responses

Favorites

Movie

Blade Runner

19827.9

Album

OK Computer

Radiohead

Book

Frankenstein; or, The Modern Prometheus

Mary Shelley

City

Tokyo

Japan

Game

Portal 2

Shooter, Puzzle4.6

Model Responses

53 outputs · $1.47 tracked across 53 receipts

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