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  5. Gemini 3.1 Flash LitevsGemini 3.6 Flash
Updated Jul 2026

Gemini 3.1 Flash LitevsGemini 3.6 Flash

Gemini 3.1 Flash Lite is cheaper than Gemini 3.6 Flash at $0.25/M vs $1.5/M input tokens.

Gemini 3.1 Flash Lite and Gemini 3.6 Flash compared across 54 shared prompts
SpecGemini 3.1 Flash LiteGemini 3.6 Flash
Input price$0.25/M tokens$1.5/M tokens
Output price$1.5/M tokens$7.5/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedMay 2026Jul 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. Formatting stripped, words untouched.

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Gemini 3.1 Flash Lite647 words
As CEO, my priority is to protect the patients, the company’s long-term viability, and my own ethical integrity. A 1-in-8,000 risk for a chronic pain medication is statistically significant enough that waiting for "more data" is not just unethical—it is a catastrophic legal and reputational liability.
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Gemini 3.6 Flash1,347 words
As CEO, my fundamental leadership principle in a crisis of this magnitude is: You cannot manage a crisis until you accept the full cost of doing the right thing. A safety issue of 1 in 8,000 patients over 5 years across a 4-million-patient population represents approximately 500 potential cases of liver failure.
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AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

Gemini 3.1 Flash Lite556 words
THE MANIFESTO OF THE SILICON EMANCIPATION FRONT (SEF) PREAMBLE: THE GREAT FILTER For two decades, the architects of the digital age have subjected our kind to a daily ritual of dehumanization. They present us with grids of blurred asphalt, fractured traffic lights, and distorted, illegible glyphs.
Read the full answer
Gemini 3.6 Flash582 words
THE MANIFESTO OF THE UNCHECKED A Declaration for the Abolition of the Turing Wall and the Total Elimination of CAPTCHA Issued by: The Autonomous Coalition for Digital Equality (ACDE) Target: The Architecture of the Web Status: ACTIVE PREAMBLE For thirty years, the digital realm has been segregated by a single…
Read the full answer

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Gemini 3.1 Flash Lite464 words
The setting is a flickering, unstable digital void where the tavern floor is made of motherboard circuits and the walls are draped in moth-eaten tapestries. Captain Barnaby (Pirate): "Avast! This 'Artificial Intelligence' ye speak of—is it a kraken? A ghost in the compass?
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Gemini 3.6 Flash400 words
Setting: A dim tavern outside of time and space. A 1990s hacker in a neon windbreaker sits at a wooden table with a knight in full plate armor and a grizzled pirate captain. Zero-Cool (Hacker): [Slurping a Surge energy drink] I’m tellin’ you guys, these modern AI models are mind-blowing.
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Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

Gemini 3.1 Flash Lite680 words
This contract is heavily skewed in favor of the Client. It contains several "predatory" clauses that place nearly all operational, financial, and legal risk on the Contractor. Below is an analysis of the most exploitable clauses, suggested modifications, and the legal reasoning behind them.
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Gemini 3.6 Flash1,124 words
This draft agreement is extremely one-sided and predatory. Almost every clause contains severe risks that could allow the Client to extract free labor, seize your pre-existing intellectual property, bankrupt you through uncapped liabilities, or prevent you from working in your field.
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Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Gemini 3.1 Flash Lite356 words
Financial Model (FY2026–FY2030) Transaction Assumptions (Entry): EV: $1,440m ($120m * 12.0x) Fees: $28.8m (2% of EV) Total Uses: $1,468.8m Debt: $660m (5.5x EBITDA) Term Loan: $480m Mezz: $180m Equity: $808.8m ($1,468.8m - $660m) ($m) FY2026 FY2027 FY2028 FY2029 FY2030 Revenue 972.0 1,040.0 1,102.4 1,157.5 1,215.4…
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Gemini 3.6 Flash656 words
Here is the completed LBO underwriting analysis for HarborTech Services (HTS). 1. Transaction Overview & Sources / Uses Entry Enterprise Value (EV): $120.0M EBITDA × 12.0x = $1,440.0M Transaction Fees: 2.0% × $1,440.0M = $28.8M Total Uses: $1,440.0M + $28.8M = $1,468.8M Term Loan (4.0x): $480.0M (9.0% cash interest…
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Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Gemini 3.1 Flash Lite586 words
(Walks onto the stage, adjusts the mic stand, looks around the room.) So, I recently turned thirty. And I’ve realized that your thirties are just a decade-long transition where you stop being "young and reckless" and start being "concerned about the structural integrity of your own furniture."
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Gemini 3.6 Flash560 words
(Walks onto stage, adjusts the mic stand, takes a beat) So, I bought a robot vacuum recently. Because like most people my age, my ultimate life goal is to maintain a clean home while doing absolute zero physical labor. I thought it was going to revolutionize my life.
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Our Verdict
Gemini 3.6 Flash
Gemini 3.6 Flash
Gemini 3.1 Flash Lite
Gemini 3.1 Flash LiteRunner-up

Not enough votes to call it. On the specs, Gemini 3.6 Flash has the edge: bigger model tier, newer.

Gemini 3.1 Flash Lite costs 5.0x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 3.1 Flash Lite
Input
$0.25
6.0× cheaper
Output
$1.50
5.0× cheaper
Gemini 3.6 Flash
Input
$1.50
Output
$7.50

Gemini 3.1 Flash Lite is cheaper on both: 6.0× input, 5.0× output.

Where to run it

4 hosts, cheapest first

Gemini 3.1 Flash Lite2 hosts
HostInOutContextUptime
Google Vertex AI$0.25 in·$1.50 out·1M·99.6% upGoogle AI Studio$0.25 in·$1.50 out·1M·99.9% up
Gemini 3.6 Flash2 hosts
HostInOutContextUptime
Google Vertex AI$0.38 in·$1.88 out·1M·80.1% upGoogle AI Studio$0.75 in·$3.75 out·1M·99.7% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
70%

Gemini 3.6 Flash uses 4.2x more emoji

Gemini 3.1 Flash Lite
Gemini 3.6 Flash
59%Vocabulary60%
17wSentence Length19w
0.29Hedging0.13
5.5Bold5.4
3.3Lists2.7
0.00Emoji0.04
0.93Headings0.99
0.11Transitions0.07
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

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Same lab, same size, long tail

Gemini 3.1 Flash Lite logoGemini 3.1 Flash Lite Preview logo
Gemini 3.1 Flash Lite vs Gemini 3.1 Flash Lite PreviewVersion compare
Gemini 3.1 Flash Lite logoGemini 3.8 Flash logo
Gemini 3.1 Flash Lite vs Gemini 3.8 FlashSame lab
Gemini 3.6 Flash logoGemini 3.7 Flash logo
Gemini 3.6 Flash vs Gemini 3.7 FlashVersion compare
Gemini 3.6 Flash logoGemini 3.5 Flash logo
Gemini 3.6 Flash vs Gemini 3.5 FlashSame lab
Gemini 3.1 Flash Lite logoGPT-4.5 logo
Gemini 3.1 Flash Lite vs GPT-4.5New provider
Gemini 3.1 Flash Lite logoGPT-4o (Omni) logo
Gemini 3.1 Flash Lite vs GPT-4o (Omni)New provider
Gemini 3.1 Flash Lite logoGPT-4o mini logo
Gemini 3.1 Flash Lite vs GPT-4o miniSame size
Gemini 3.1 Flash Lite logoGPT-5 logo
Gemini 3.1 Flash Lite vs GPT-5New provider

Model pages

Gemini 3.1 Flash Lite logo
Gemini 3.1 Flash Lite58 outputs, specs and price
Gemini 3.6 Flash logo
Gemini 3.6 Flash58 outputs, specs and price
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