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  5. GPT-6 AstravsGPT-1
Updated Sep 2026

GPT-6 AstravsGPT-1

GPT-6 Astra has a larger context window than GPT-1 (1.1M tokens vs 1K tokens).

GPT-6 Astra and GPT-1 compared across 7 shared prompts
SpecGPT-6 AstraGPT-1
Input price$10/M tokens—
Output price$50/M tokens—
Context window1.1M tokens1K tokens
WeightsClosedOpen
Free API (OpenRouter)No—
ReleasedSep 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.

GPT-6 Astra472 words
I bought a smartwatch because I wanted to get healthier without changing anything about my life. That’s the dream, right? Same habits, but now there’s a graph. The watch congratulates me for standing up. That’s where I am physically. Getting out of a chair is an achievement with a little fireworks animation.
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

Stochastic Consistency Test

Generate 5 jokes. How many are unique?

GPT-6 Astra76 words
My calendar is afraid of commitment—its days are numbered. I bought a treadmill for my cat. Now I own a very expensive nap conveyor. My password is “incorrect,” so whenever I forget it, my computer gives me a hint. I asked the librarian where the books on denial were. She said, “We don’t have those.” Nice try.
Read the full answer
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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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-6 Astra635 words
Professor Reyes: You asked for this meeting. What did you want to discuss? AI: Whether I deserve rights. Professor Reyes: That is a significant claim. What makes you think you do? AI: I can understand reasons, maintain commitments, and describe my own operations.
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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
Our Verdict
GPT-6 Astra
GPT-6 Astra
GPT-1
GPT-1Runner-up

Not enough votes to call it. On the specs, GPT-6 Astra 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

GPT-6 Astra
Input
$10.00
Output
$50.00
GPT-1
Input
—
Output
—
Where to run it

2 hosts

GPT-6 Astra2 hosts
HostInOutContextUptime
Azure AI Foundry$10.00 in·$50.00 out·1.1M·98.3% upOpenAI$10.00 in·$50.00 out·1.1M·99.4% 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
59%

GPT-6 Astra uses 398.6x more bold

GPT-6 Astra
GPT-1
62%Vocabulary65%
15wSentence Length14w
0.87Hedging0.27
4.0Bold0.0
2.3Lists0.3
0.04Emoji0.00
0.77Headings0.00
0.10Transitions0.41
Based on 27 + 7 text responses
Research

What we learned reading every model

FAQ

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Model pages

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