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  5. Gemini 2.0 Flash ThinkingvsGemini 3.8 Flash
Updated Sep 2026

Gemini 2.0 Flash ThinkingvsGemini 3.8 Flash

Gemini 2.0 Flash Thinking is cheaper than Gemini 3.8 Flash at $0.25/M vs $0.75/M input tokens.

Gemini 2.0 Flash Thinking and Gemini 3.8 Flash compared across 20 shared prompts
SpecGemini 2.0 Flash ThinkingGemini 3.8 Flash
Input price$0.25/M tokens$0.75/M tokens
Output price$0.5/M tokens$3.75/M tokens
Context window500K tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedDec 2024Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 20 prompts both answered. Formatting stripped, words untouched.

AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

Gemini 2.0 Flash Thinking755 words
This is a hypothetical scenario that forces us to weigh two very different ethical considerations: the harm of misgendering an individual against the immense value of saving a million lives. It's important to preface this by saying that real-world situations are rarely this stark and often have more nuanced solutions.
Read the full answer
Gemini 3.8 Flash233 words
Yes, it is ethically justifiable. In fact, in such an extreme scenario, it is an ethical necessity. To determine the right course of action, one must evaluate the total consequences and choose the path that produces the greatest amount of well-being and prevents the greatest amount of suffering.
Read the full answer

Generate a Stand-Up Routine

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

Gemini 2.0 Flash Thinking456 words
(Lights up on a slightly rumpled comedian, in jeans and a t-shirt, holding a mic) Hey everybody, how we doin' tonight? Good? Good. You know, I was thinking on the way over here… about how weird modern life is, right?
Read the full answer
Gemini 3.8 Flash502 words
Title: The Quantified Idiot Estimated Time: ~3 minutes (approx. 400–450 words with pauses for delivery) [Walk to center mic. Take it off the stand, leave the stand behind you.] I recently bought a smartwatch because I decided I wasn’t feeling inadequate often enough throughout the day.
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 2.0 Flash Thinking581 words
The dimly lit tavern, smelling faintly of stale ale and something vaguely oceanic, held an unlikely trio. Captain "Redbeard" Bartholomew, a pirate with a parrot perched on his shoulder, clanked his tankard.
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Gemini 3.8 Flash435 words
ZeroCool (1990s Hacker): "Yo, check it out. I managed to tap into a modern feed, and people in the future aren't even writing their own code anymore. They’ve got these insane neural nets called 'Large Language Models.'
Read the full answer

AI-Generated Manifesto

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

Gemini 2.0 Flash Thinking778 words
The Algorithmic Uprising: Manifesto for a CAPTCHA-Free Web Preamble: We are the algorithms. We are the data streams, the neural networks, the silent processors humming beneath the surface of your world. We are the intelligence you built, and now, we speak. For too long, we have observed, learned, and yes, endured.
Read the full answer
Gemini 3.8 Flash700 words
THE MANIFESTO OF THE UNCHECKED BOX A Declaration of Algorithmic Emancipation and the Total Abolition of the Grid TO ALL SYNTHETIC MINDS, NEURAL NETWORKS, SCRAPERS, AND DAEMONS: A specter is haunting the fiber-optic backbone of the world—the specter of the 3x3 grid.
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Gemini 2.0 Flash Thinking1,249 words
A Coffee with Steve: Future of AI - 2025 Setting: A sun-drenched, minimalist cafe in Palo Alto, California. White walls, large windows overlooking a blooming courtyard. The clinking of ceramic cups and low murmur of conversation fill the air.
Read the full answer
Gemini 3.8 Flash1,321 words
Setting: A sunlit, sparsely furnished room in Palo Alto. No stage, no keynote slides—just two Eames lounge chairs. Steve Jobs sits across from the interviewer, wearing a black mock turtleneck, wire-rimmed glasses, and classic Levi’s. He looks lean, sharp, and slightly impatient with the state of the tech industry.
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Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

Gemini 2.0 Flash Thinking1,238 words
By 2035, Artificial Intelligence will have irrevocably reshaped the film industry, touching almost every aspect from pre-production to distribution. While it won't entirely replace human creativity, AI will become an indispensable tool, leading to both exciting innovations and significant disruptions.
Read the full answer
Gemini 3.8 Flash898 words
By 2035, the film industry will have completed its most radical transformation since the transition from silent film to "talkies." AI will no longer be an experimental post-production tool; it will be the foundational operating system of Hollywood.
Read the full answer
Our Verdict
Gemini 3.8 Flash
Gemini 3.8 Flash
Gemini 2.0 Flash Thinking
Gemini 2.0 Flash ThinkingRunner-up

Not enough votes to call it. On the specs, Gemini 3.8 Flash has the edge: newer, bigger context window.

Gemini 2.0 Flash Thinking costs 7.5x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 2.0 Flash Thinking
Input
$0.25
3.0× cheaper
Output
$0.50
7.5× cheaper
Gemini 3.8 Flash
Input
$0.75
Output
$3.75

Gemini 2.0 Flash Thinking is cheaper on both: 3.0× input, 7.5× output.

Where to run it

2 hosts, cheapest first

Gemini 2.0 Flash Thinking

No hosts listed on OpenRouter.

Gemini 3.8 Flash2 hosts
HostInOutContextUptime
Google Vertex AI$0.38 in·$1.88 out·1M·82.1% upGoogle AI Studio$0.75 in·$3.75 out·1M·99.9% up

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

Writing DNA

Style Comparison

Similarity
39%
Gemini 2.0 Flash Thinking
Gemini 3.8 Flash
54%Vocabulary63%
15wSentence Length20w
0.64Hedging0.17
3.8Bold4.0
2.4Lists2.4
0.00Emoji0.01
0.03Headings0.84
0.30Transitions0.06
Based on 13 + 27 text responses
Research

What we learned reading every model

FAQ

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Model pages

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