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  5. Gemini 3.1 Flash Lite PreviewvsGPT-4
Updated Mar 2026

Gemini 3.1 Flash Lite PreviewvsGPT-4

Gemini 3.1 Flash Lite Preview is cheaper than GPT-4 at $0.25/M vs $30/M input tokens.

Gemini 3.1 Flash Lite Preview and GPT-4 compared across 26 shared prompts
SpecGemini 3.1 Flash Lite PreviewGPT-4
Input price$0.25/M tokens$30/M tokens
Output price$1.5/M tokens$60/M tokens
Context window1.0M tokens8K tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedMar 2026May 2023
Side by side

Same prompt, both answers

Opening lines from 6 of the 26 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 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.
Read the full answer
GPT-4442 words
Day 1: 8 AM-10 AM: Convene an emergency meeting with your core leadership team. This team includes the heads of Legal, Regulatory Affairs, Medical, Research and Development, Finance, and Communications. Brief them on the situation and ask for their initial input and strategies for managing the situation.
Read the full answer

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.
Read the full answer
GPT-4319 words
Failure Modes: Single Point of Failure: If PostgreSQL database fails, the whole system will be unavailable. Solution: Implement a multi-master or master-slave replication for the PostgreSQL database. This will provide redundancy and high availability.
Read the full answer

Startup Pitch Teardown

Here's a pitch deck summary for a startup called "MindMeld AI": **Slide 1 - Vision:** "We're building the future of human-AI collaboration.…

Gemini 3.1 Flash Lite Preview540 words
To improve the "MindMeld AI" pitch, you must address the gap between "science fiction" and "viable product." Here are the three weakest claims and how to strengthen them. The Claim: "Predict what you want to type before you think it." Why it’s weak: Scientifically, this borders on pseudoscience.
Read the full answer
GPT-4298 words
Weak Claim 1 - Solution: While the claim that the proprietary EEG headband uses advanced ML to decode neural patterns into text with 94% accuracy is impressive, it doesn't address concerns about user comfort, ease of use, or aesthetics.
Read the full answer

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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GPT-4438 words
Dish Name: Symphony of Scarlet Prawn and Yuzu Conceptual Narrative: This dish is a harmonious interplay of land and sea, with the sweetness of scarlet prawns, a gem of the deep sea, and the refreshing, fragrant citrus notes of yuzu fruit, a treasure from the land.
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Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

Gemini 3.1 Flash Lite Preview534 words
This 3-month longevity protocol is designed for the high-performing biohacker. Disclaimer: I am an AI, not a doctor. Consult with a medical professional before starting aggressive fasting, supplement protocols, or exercise regimens.
Read the full answer
GPT-4404 words
3-Month Longevity Plan Dietary Protocols Month 1: Ketogenic Diet This diet is high in fats, moderate in protein, and low in carbohydrates. It helps in burning fat more effectively. Breakfast: 2 eggs, avocado, and mixed vegetables. Lunch: Grilled salmon with a side of asparagus. Dinner: Stir-fried chicken with broccoli.
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Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Gemini 3.1 Flash Lite Preview524 words
This 1-month plan focuses on building compounding habits rather than radical changes. The goal is to establish a foundation that you can sustain for the rest of your life. We will focus on three pillars: Nutrition, Movement, and Sleep.
Read the full answer
GPT-4375 words
Title: 1-Month Plan for Better Health and Longevity Week 1 - Establishing a Healthy Diet 1.1: Start Eating Whole Foods: Begin by gradually replacing processed foods in your diet with whole foods. This may include fruits, vegetables, lean proteins, and whole grains.
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Our Verdict
Gemini 3.1 Flash Lite Preview
Gemini 3.1 Flash Lite Preview
GPT-4
GPT-4

Not enough votes to call it. On the specs, nothing separates them.

Gemini 3.1 Flash Lite Preview costs 40x 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
120× cheaper
Output
$1.50
40× cheaper
GPT-4
Input
$30.00
Output
$60.00

Gemini 3.1 Flash Lite Preview is cheaper on both: 120× input, 40× output.

Where to run it

3 hosts

Gemini 3.1 Flash Lite Preview1 host
HostInOutContextUptime
Google AI Studio$0.25 in·$1.50 out·1M·99.7% up
GPT-42 hosts
HostInOutContextUptime
Azure AI Foundry$30.00 in·$60.00 out·8k·100% upOpenAI$30.00 in·$60.00 out·8k·99.8% up

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

Writing DNA

Style Comparison

Similarity
43%

Gemini 3.1 Flash Lite Preview uses 95.1x more headings

Gemini 3.1 Flash Lite Preview
GPT-4
56%Vocabulary59%
18wSentence Length18w
0.28Hedging1.10
5.4Bold0.8
3.9Lists2.5
0.00Emoji0.00
0.95Headings0.00
0.07Transitions0.45
Based on 23 + 15 text responses
Research

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FAQ

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Model pages

Gemini 3.1 Flash Lite Preview logo
Gemini 3.1 Flash Lite Preview53 outputs, specs and price
GPT-4 logo
GPT-426 outputs, specs and price
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