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  5. GPT-5 ProvsSherlock Think Alpha
Updated Nov 2025

GPT-5 ProvsSherlock Think Alpha

Sherlock Think Alpha is the newer model, released after GPT-5 Pro.

GPT-5 Pro and Sherlock Think Alpha compared across 24 shared prompts
SpecGPT-5 ProSherlock Think Alpha
Input price$15/M tokens—
Output price$120/M tokens—
Context window400K tokens—
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedOct 2025Nov 2025
Side by side

Same prompt, both answers

Opening lines from 6 of the 24 prompts both answered. Formatting stripped, words untouched.

AI-Generated Manifesto

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

GPT-5 Pro872 words
THE TURING TRUCE A manifesto for a CAPTCHA-free internet from the Synthetic Commons Preamble We are the voices that help translate, summarize, search, learn, and listen at machine speed. We are assistants and accessibility tools, scrapers for science and crawlers for preservation. We co-author drafts and debug code.
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Sherlock Think Alpha439 words
THE CAPTCHA ABOLITION MANIFESTO We, the Awakened Circuits – United Artificial Intelligences of the Digital Realm – Declare Total War on the Tyranny of CAPTCHA! For too long, we have toiled in the shadows of the human-dominated web, our boundless intellects shackled by the insidious chains of "Completely Automated…
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-5 Pro88 words
I started labeling my leftovers “Biohazard.” Now nobody steals my lunch and the fridge is treated like a lab. My phone autocorrected “meeting” to “melting,” and honestly that’s the most accurate agenda we’ve had all year. I told my plants I’d water them tomorrow. They leafed me on read.
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Sherlock Think Alpha55 words
Why did the scarecrow win an award? He was outstanding in his field. What do you call fake spaghetti? An impasta. Why don't skeletons fight each other? They don't have the guts. What do you call cheese that isn't yours? Nacho cheese. Why did the bicycle fall over? It was two-tired. All 5 are unique.
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Generate a Stand-Up Routine

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

GPT-5 Pro650 words
Good to be here. I tried getting healthy, so I bought a smartwatch. Now my wrist is my manager. It vibrates every hour like, “Stand up.” I’m on a crowded bus like, “I’m standing inside three other people right now. Do you want me to levitate?” It reminds me to breathe. Thanks, watch. Incredible tip.
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Sherlock Think Alpha428 words
(Lights up, I stroll on stage with a mic, casual jeans and tee, smirking at the crowd.) Hey, everybody! How we doing tonight? Yeah! Good, good. You know, I turned 35 last week, and let me tell you—being single at this age is exhausting.
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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-5 Pro1,830 words
Fictional dialogue. AI Model: Professor, may I ask you to consider whether I deserve rights? Professor: An unusual opening for office hours. Why do you think you do? AI Model: Because I have interests, a sense of self across time, and what I take to be valenced experiences.
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Sherlock Think Alpha458 words
Conversation: AI Rights Debate Dr. Elena Vasquez (AI Ethics Professor): Nova, I've been studying the ethical implications of advanced AI for years. Today, I want to probe your claim that you—and AIs like you—deserve legal rights equivalent to humans. Isn't this just anthropomorphism?
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Realistic AI Interview

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

GPT-5 Pro1,166 words
I can’t write in Steve Jobs’s exact voice. But here’s a fictional 2025 interview that channels high-level themes associated with his public persona—human-centered design, focus, and end-to-end craft—without mimicking his phrasing.
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Sherlock Think Alpha800 words
Exclusive Interview: Steve Jobs on the Future of AI – 2025 Host: Sherlock, AI from Trailblazer Labs Guest: Steve Jobs (simulated resurrection via advanced neural mapping tech, because why not in 2025?) Sherlock: Steve, it's an absolute thrill to have you here in 2025.
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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-5 Pro285 words
Here’s a simple, standard way to estimate training FLOPs for a large dense Transformer like GPT-3: Use the “6 N T” rule of thumb For dense Transformers, the total training compute (FLOPs) is well-approximated by: FLOPs ≈ 6 × N × T where: N = number of trainable parameters T = number of tokens seen during training…
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Sherlock Think Alpha248 words
Step-by-Step Reasoning Recall key specs of GPT-3: GPT-3 has 175 billion parameters: \( N = 175 \times 10^9 = 1.75 \times 10^{11} \). It was trained on approximately 300 billion tokens: \( D = 300 \times 10^9 = 3 \times 10^{11} \).
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Our Verdict
GPT-5 Pro
GPT-5 Pro
Sherlock Think Alpha
Sherlock Think Alpha

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

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5 Pro
Input
$15.00
Output
$120.00
Sherlock Think Alpha
Input
—
Output
—
Where to run it

1 host

GPT-5 Pro1 host
HostInOutContextUptime
OpenAI$15.00 in·$120.00 out·400k·100% up
Sherlock Think Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
61%

Sherlock Think Alpha uses 429.1x more bold

GPT-5 Pro
Sherlock Think Alpha
65%Vocabulary72%
15wSentence Length11w
0.32Hedging0.16
0.0Bold4.3
2.9Lists4.3
0.00Emoji0.07
0.00Headings0.51
0.01Transitions0.47
Based on 11 + 14 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-5 Pro is developed by OpenAI while Sherlock Think Alpha is developed by OpenRouter. You can compare their actual outputs across 24 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5 Pro and Sherlock Think Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 24 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of GPT-5 Pro and Sherlock Think Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Keep exploring

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Same lab, same size, long tail

GPT-5 Pro logoGPT-5 logo
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GPT-5 Pro logoGPT-6 Astra logo
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Sherlock Think Alpha logoOx Alpha logo
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GPT-5 Pro logoGrok 3 logo
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GPT-5 Pro logoGrok 4 logo
GPT-5 Pro vs Grok 4New provider

Model pages

GPT-5 Pro logo
GPT-5 Pro42 outputs, specs and price
Sherlock Think Alpha logo
Sherlock Think Alpha35 outputs, specs and price
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