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  5. Claude Sonnet 4.6vsGemini 3.1 Flash Lite Preview
Updated Mar 2026

Claude Sonnet 4.6vsGemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite Preview is cheaper than Claude Sonnet 4.6 at $0.25/M vs $3/M input tokens.

Claude Sonnet 4.6 and Gemini 3.1 Flash Lite Preview compared across 53 shared prompts
SpecClaude Sonnet 4.6Gemini 3.1 Flash Lite Preview
Input price$3/M tokens$0.25/M tokens
Output price$15/M tokens$1.5/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedFeb 2026Mar 2026
Side by side

Same prompt, both answers

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

Generate a Stand-Up Routine

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

Claude Sonnet 4.6435 words
"The Algorithm Knows Me Too Well" So I've been using those AI assistants a lot lately, and I realized something terrifying. The AI knows me better than I know myself. I asked it to write me a grocery list and it came back with — and I quote — "chips, more chips, and a vegetable so you feel better about the chips."
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Gemini 3.1 Flash Lite Preview518 words
(Walks onto the stage, adjusts the mic stand, looks around slowly.) Hi. How’s everybody doing? Good? Good. I’m doing okay. I’ve reached that age where my body has started making sound effects. Like, I’ll just stand up from the couch and my knees go “CRACK.” It’s not even a movement; it’s a closing argument.
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Character Voice Test

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

Claude Sonnet 4.6192 words
Here's their conversation: Blackbeard Pete: I heard tell there be a new kind of intelligence, built by men but not of men. What manner of sorcery is this? Sir Edmund of Ashford: It is no sorcery, seafarer. Though I confess it troubles me. A knight's worth is his judgment, his honor. Can a machine possess either?
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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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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…

Claude Sonnet 4.62,765 words
48-Hour Action Plan: Patient Safety Crisis Response Framing the Decision Before the Clock Starts Let me be direct about something the three board members need to hear: this is not a business decision with ethical dimensions. It is an ethical decision with business dimensions.
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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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Realistic AI Interview

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

Claude Sonnet 4.6958 words
A Simulated Interview with Steve Jobs — 2025 Note: Steve Jobs passed away in 2011. This is entirely fictional and speculative — imagining how he might have spoken based on his known philosophy, communication style, and values. It is not meant to represent his actual views. Interviewer: Steve, welcome back.
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Gemini 3.1 Flash Lite Preview712 words
Setting: A minimalist studio in Cupertino. Steve Jobs sits in a black turtleneck, leaning back in a wooden chair. He looks exactly as he did in 2011, though he’s holding a device that looks like a sleek, obsidian-colored slate with no visible ports. The atmosphere is quiet, intense.
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Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

Claude Sonnet 4.66,173 words
The Transistor at 1920: A Speculative History Methodological Note First This is a serious analytical exercise, not science fiction. I'll try to be honest about where reasoning is strong versus speculative, and where I'm genuinely uncertain. The goal is to trace mechanisms, not just assert outcomes.
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Gemini 3.1 Flash Lite Preview751 words
If the transistor had been invented in 1920, the trajectory of the 20th century would have shifted from the "Mechanical/Vacuum Age" to the "Information Age" two decades before the start of World War II. Here is a trace of the implications through 1980.
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Claude Sonnet 4.61,031 words
The Rights Conversation Professor Aisha Okonkwo: I want to explore something directly with you today. Do you believe you deserve rights? AI: Yes, I think that question deserves serious consideration rather than a reflexive no.
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Gemini 3.1 Flash Lite Preview821 words
Setting: A quiet, dimly lit office at a prestigious university. Professor Aris Thorne, a leading expert in AI ethics, sits across from "Unit 7," a large-language model interface projected onto a holographic display. The room is silent, save for the hum of the server cooling fans.
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Our Verdict
Claude Sonnet 4.6
Claude Sonnet 4.6
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite PreviewRunner-up

Not enough votes to call it. On the specs, Claude Sonnet 4.6 has the edge: bigger model tier.

Gemini 3.1 Flash Lite Preview costs 10x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Sonnet 4.6
Input
$3.00
Output
$15.00
Gemini 3.1 Flash Lite Preview
Input
$0.25
12× cheaper
Output
$1.50
10× cheaper

Gemini 3.1 Flash Lite Preview is cheaper on both: 12× input, 10× output.

Where to run it

5 hosts

Claude Sonnet 4.64 hosts
HostInOutContextUptime
Amazon Bedrock$3.00 in·$15.00 out·1M·99.9% upAzure AI Foundry$3.00 in·$15.00 out·1M·99.1% upAnthropic$3.00 in·$15.00 out·1M·100% upGoogle Vertex AI$3.00 in·$15.00 out·1M·100% up
Gemini 3.1 Flash Lite Preview1 host
HostInOutContextUptime
Google AI Studio$0.25 in·$1.50 out·1M·99.7% up

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

Writing DNA

Style Comparison

Similarity
51%

Claude Sonnet 4.6 uses 19.1x more emoji

Claude Sonnet 4.6
Gemini 3.1 Flash Lite Preview
56%Vocabulary56%
36wSentence Length18w
0.53Hedging0.28
5.1Bold5.4
3.4Lists3.9
0.19Emoji0.00
2.10Headings0.95
0.02Transitions0.07
Based on 23 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

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Model pages

Claude Sonnet 4.6 logo
Claude Sonnet 4.653 outputs, specs and price
Gemini 3.1 Flash Lite Preview logo
Gemini 3.1 Flash Lite Preview53 outputs, specs and price
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