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  5. Gemini 3.1 Flash Lite PreviewvsGemini 3.6 Flash
Updated Jul 2026

Gemini 3.1 Flash Lite PreviewvsGemini 3.6 Flash

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

Gemini 3.1 Flash Lite Preview and Gemini 3.6 Flash compared across 53 shared prompts
SpecGemini 3.1 Flash Lite PreviewGemini 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
ReleasedMar 2026Jul 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

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 Lite Preview365 words
Financial Projections (FY2026–FY2030) Initial Setup (End of FY2025): EV: $120m * 12.0x = $1,440m Fees: $1,440m * 2.0% = $28.8m Term Loan (4.0x): $480m Mezzanine (1.5x): $180m Equity: $1,440m + $28.8m - $480m - $180m = $808.8m Metric ($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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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 Lite Preview671 words
This situation represents a "bet-the-company" crisis. From a leadership perspective, the primary objective is to protect the company’s long-term viability by preserving its integrity, while mitigating the immediate financial shock. Attempting to bury this data—or "waiting for more data"—is a catastrophic error.
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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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Character Voice Test

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

Gemini 3.1 Flash Lite Preview475 words
The three sat around a flickering tavern table in a pocket dimension that smelled simultaneously of salt spray, cold iron, and ozone. Captain Barnaby (Pirate): "I tell ye, it’s sorcery! This 'Artificial Intelligence' be like a parrot that’s swallowed every map in the seven seas.
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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 Lite Preview712 words
This contract is heavily weighted in favor of the Client and contains several "red flag" clauses that create extreme financial and professional risk for the Contractor. Scope (Clause 1) The Problem: "Client reserves the right to modify the scope at any time without additional compensation."
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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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Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

Gemini 3.1 Flash Lite Preview657 words
This architecture contains several critical flaws that would lead to data loss, inconsistent state, and poor user experience in a real-time environment. The "Split-Brain" Broadcast Problem Issue: The architecture only broadcasts changes to clients connected to the same server.
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Gemini 3.6 Flash1,163 words
This architecture contains several critical single points of failure, severe race conditions, data-loss mechanisms, and major performance bottlenecks. Below is a detailed breakdown of these issues categorized by domain, along with proposed architectural fixes and trade-offs.
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

Gemini 3.1 Flash Lite Preview568 words
The Dish: "Nebula of the Forest Floor" Conceptual Narrative: This dish explores the intersection of decay and rebirth. The pairing—Black Garlic and Wild Foraged Pine Needles—creates an umami-forward, resinous profile that mimics the damp, dark scent of an ancient coniferous forest.
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Gemini 3.6 Flash1,149 words
Shadows of the Forest & Shore Veal Sweetbreads & Torch-Cured Otoro with Fermented Rhubarb, Roasted Coffee-Glace, Sunchoke Silk, and Spruce Needle Oil Conceptual Narrative This dish explores the uncanny harmony between two rich, highly prized delicacies from opposing domains: the terrestrial richness of milk-fed veal…
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Our Verdict
Gemini 3.6 Flash
Gemini 3.6 Flash
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite PreviewRunner-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 Preview 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 Preview
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 Preview is cheaper on both: 6.0× input, 5.0× output.

Where to run it

3 hosts, cheapest first

Gemini 3.1 Flash Lite Preview1 host
HostInOutContextUptime
Google AI Studio$0.25 in·$1.50 out·1M·99.7% 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
63%

Gemini 3.6 Flash uses 4.2x more emoji

Gemini 3.1 Flash Lite Preview
Gemini 3.6 Flash
56%Vocabulary60%
18wSentence Length19w
0.28Hedging0.13
5.4Bold5.4
3.9Lists2.7
0.00Emoji0.04
0.95Headings0.99
0.07Transitions0.07
Based on 23 + 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 Preview logoGemini 3.1 Pro Preview logo
Gemini 3.1 Flash Lite Preview vs Gemini 3.1 Pro PreviewVersion compare
Gemini 3.1 Flash Lite Preview logoGemini 3.8 Flash logo
Gemini 3.1 Flash Lite Preview 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 Preview logoClaude Opus 4.8 logo
Gemini 3.1 Flash Lite Preview vs Claude Opus 4.8New provider
Gemini 3.1 Flash Lite Preview logoClaude Opus 5 logo
Gemini 3.1 Flash Lite Preview vs Claude Opus 5New provider
Gemini 3.1 Flash Lite Preview logoClaude Sonnet 4 logo
Gemini 3.1 Flash Lite Preview vs Claude Sonnet 4New provider
Gemini 3.1 Flash Lite Preview logoClaude Sonnet 4.6 logo
Gemini 3.1 Flash Lite Preview vs Claude Sonnet 4.6New provider

Model pages

Gemini 3.1 Flash Lite Preview logo
Gemini 3.1 Flash Lite Preview53 outputs, specs and price
Gemini 3.6 Flash logo
Gemini 3.6 Flash58 outputs, specs and price
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