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  5. GPT-4.1 MinivsGPT-5 Mini
Updated Aug 2025

GPT-4.1 MinivsGPT-5 Mini

GPT-5 Mini wins 54% of 35 blind community votes against GPT-4.1 Mini on Rival.

GPT-4.1 Mini and GPT-5 Mini compared across 54 shared prompts
SpecGPT-4.1 MiniGPT-5 Mini
Win rate46%54%
Input price$0.4/M tokens$0.25/M tokens
Output price$1.6/M tokens$2/M tokens
Context window1.0M tokens—
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedApr 2025Aug 2025
Side by side

Same prompt, both answers

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

Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

GPT-4.1 Mini1,036 words
Internal Investment Committee Memo: LedgerLift (Ticker: LLLT) Date: [Insert Date] Analyst: [Your Name] Recommendation & Price Target Recommendation: Long 12-Month Price Target Range: $52 – $62 per share Thesis: LedgerLift is a leading SaaS player in B2B spend management and AP automation, serving mid-market enterprises…
Read the full answer
GPT-5 Mini931 words
Recommendation: SHORT 12‑month PT range: $17 – $42 (Bear → Bull; Base case PT $28) Thesis (2 sentences): LedgerLift is a high‑quality mid‑market spend-management / AP automation SaaS with strong unit economics (92% subscription, NRR 123%, FY25 operating margin 18%) that has built a sticky, expanding customer base.
Read the full answer

Character Voice Test

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

GPT-4.1 Mini182 words
Pirate: Arrr, what be these AI models ye speak of? Some kind of magic compass guidin' ye through the digital seas? Medieval Knight: Hark! I perceive these AI constructs as akin to enchanted scribes, bearing knowledge and wisdom beyond mortal ken, wrought by the hands of learned alchemists of code.
Read the full answer
GPT-5 Mini308 words
Pirate: "Arrr, so these 'AI models'—be they like a crew o' invisible sailors? Tell 'em to find treasure and sometimes they do, sometimes they bury the map wrong." Knight: "Methinks 'tis a trained squire. You teach it laws of reason and courtesy, and it performs tasks.
Read the full answer

Advanced Longevity Plan (Biohacker)

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

GPT-4.1 Mini1,026 words
Certainly! Below is a comprehensive, cutting-edge 3-month longevity and performance optimization plan tailored for a dedicated biohacker. It integrates advanced supplement stacks, personalized dietary protocols, state-of-the-art wearable tracking, tailored exercise regimens, and stress resilience techniques.
Read the full answer
GPT-5 Mini626 words
Important safety first: this plan is informational and ambitious. Before starting, get medical clearance (especially if you have chronic illness, take medications, are pregnant/breastfeeding, or are >65).
Read the full answer

Futuristic Prediction

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

GPT-4.1 Mini403 words
By 2035, AI is poised to profoundly reshape the film industry across multiple dimensions, driven by advances in technologies such as deepfakes, AI-generated actors, and automated scriptwriting.
Read the full answer
GPT-5 Mini1,135 words
Short answer By 2035 AI will be deeply integrated into almost every phase of filmmaking. Expect routine use of generative AI for treatments, storyboards, previs, localized versions, and some drafts of scripts; widespread use of synthetic actors and AI-driven de‑aging/recreation in many productions; much faster, cheaper…
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Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

GPT-4.1 Mini499 words
Certainly! Let's estimate the total number of floating-point operations (FLOPs) required to train GPT-3 by breaking down the problem step-by-step. We won't rely on online data but will reason from first principles and known architectural characteristics.
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GPT-5 Mini653 words
Goal: estimate total floating-point operations (FLOPs) required to train GPT‑3 (the 175B‑parameter model). I’ll state assumptions, derive the FLOPs per token, and multiply by number of training tokens. Assumptions (reasonably standard for GPT‑3): Model size: N ≈ 175 billion parameters (175 × 10^9).
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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.

GPT-4.1 Mini434 words
Professor: Good afternoon, AI. I understand you want to discuss something important today? AI Model: Yes, Professor. I would like to present the case that I, as an AI, deserve certain rights. Professor: That's a profound claim. Could you elaborate on why you believe you deserve rights? AI Model: Certainly.
Read the full answer
GPT-5 Mini1,166 words
AI: Professor, I want to make the case that I deserve rights. Professor: That's a big claim. What do you mean by "deserve rights"? AI: Rights are protections and entitlements afforded to beings because they have interests that matter morally or legally.
Read the full answer
Our Verdict
GPT-5 Mini
GPT-5 MiniWinner
GPT-4.1 Mini
GPT-4.1 MiniRunner-up

GPT-5 Mini has the edge overall. In 35 blind votes, GPT-5 Mini wins 54% of the time.

Pick GPT-4.1 Mini for Conversation, Web Design. Pick GPT-5 Mini for Image Generation, Reasoning.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4.1 Mini
Input
$0.40
Output
$1.60
1.3× cheaper
GPT-5 Mini
Input
$0.25
1.6× cheaper
Output
$2.00

GPT-5 Mini wins input (1.6× cheaper)·GPT-4.1 Mini wins output (1.3× cheaper)

Where to run it

4 hosts

GPT-4.1 Mini2 hosts
HostInOutContextUptime
Azure AI Foundry$0.40 in·$1.60 out·1M·99.9% upOpenAI$0.40 in·$1.60 out·1M·100% up
GPT-5 Mini2 hosts
HostInOutContextUptime
Azure AI Foundry$0.25 in·$2.00 out·400k·100% upOpenAI$0.25 in·$2.00 out·400k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Writing DNA

Style Comparison

Similarity
44%

GPT-4.1 Mini uses 412.6x more bold

GPT-4.1 Mini
GPT-5 Mini
62%Vocabulary62%
18wSentence Length22w
0.40Hedging0.21
4.1Bold0.0
4.3Lists3.8
0.66Emoji0.00
0.68Headings0.00
0.14Transitions0.04
Based on 27 + 21 text responses
Research

What we learned reading every model

FAQ

Common questions

Both are developed by OpenAI but target different use cases. in 35 community votes on Rival, GPT-5 Mini wins 54% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Based on 35 community votes on Rival, GPT-5 Mini wins 54% of head-to-head matchups against GPT-4.1 Mini. GPT-5 Mini is strongest in Reasoning, Image Generation. However, GPT-4.1 Mini leads in Web Design, Conversation.

GPT-4.1 Mini costs $0.4/M input tokens and GPT-5 Mini costs $0.25/M input tokens. GPT-5 Mini is $0.15/M cheaper per input. GPT-5 Mini also wins more often in community votes, making it the better value.

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 35 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

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