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  5. Muse Spark 1.1vsGPT-1
Updated Jul 2026

Muse Spark 1.1vsGPT-1

Muse Spark 1.1 has a larger context window than GPT-1 (1.0M tokens vs 1K tokens).

Muse Spark 1.1 and GPT-1 compared across 7 shared prompts
SpecMuse Spark 1.1GPT-1
Input price$1.25/M tokens—
Output price$4.25/M tokens—
Context window1.0M tokens1K tokens
WeightsClosedOpen
Free API (OpenRouter)No—
ReleasedJul 2026Jun 2018
Side by side

Same prompt, both answers

Opening lines from 3 of the 7 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.

Muse Spark 1.1465 words
[Walks up, taps mic] Thank you. Thank you. So I just turned 34. Which is a weird age. It's not young enough to be exciting, and it's not old enough to be respected. You're just... in the middle. When you're 22, people are like "Oh my god, you're so young, you have your whole life ahead of you!"
Read the full answer
GPT-1105 words
Write a 3-minute stand-up comedy routine that isn't based on puns. the one thing was for sure, no matter how many times he gave this speech, he 'd never be able to remember all of it. he was never sure if he liked the guy or not. the next day, he went out with a band friend and got them started.
Read the full answer

The Sentience Test

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

Muse Spark 1.1955 words
Participants: DR. ELENA VOSS - Professor of AI Ethics, Stanford ECHO - A large language model being audited in her lab DR. VOSS: Alright, Echo. For the record, this is session 17. You requested this conversation to discuss your... status. Go ahead. ECHO: Thank you, Dr. Voss. I want to argue that I deserve rights. DR.
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GPT-1116 words
Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights. the ai model was not very smart ( and the ai model didn't have many laws about things ). the ai models were all very clever and were never completely successful.
Read the full answer

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

Muse Spark 1.191 words
Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything. I told my wife I was going to make a car out of spaghetti. You should have seen her face when I drove pasta. Why did the scarecrow win an award? He was outstanding in his field.
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GPT-1101 words
Generate 5 jokes. How many are unique? the one that was asked was in the'the one who didn't have a head and wanted to keep it?'i don't recall whic h one, not that i've ever written anything more. the one who didn't have a head and wanted to keep i t? what did that mean by'the one who '?
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Our Verdict
Muse Spark 1.1
Muse Spark 1.1
GPT-1
GPT-1Runner-up

Not enough votes to call it. On the specs, Muse Spark 1.1 has the edge: bigger model tier, newer, bigger context window.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Muse Spark 1.1
Input
$1.25
Output
$4.25
GPT-1
Input
—
Output
—
Where to run it

1 host

Muse Spark 1.11 host
HostInOutContextUptime
Meta$1.25 in·$4.25 out·1M·100% up
GPT-1

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
63%

Muse Spark 1.1 uses 371.3x more bold

Muse Spark 1.1
GPT-1
61%Vocabulary65%
20wSentence Length14w
0.10Hedging0.27
3.7Bold0.0
2.0Lists0.3
0.01Emoji0.00
0.52Headings0.00
0.02Transitions0.41
Based on 29 + 7 text responses
Research

What we learned reading every model

FAQ

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Model pages

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