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  1. Home/
  2. Compare/
  3. Claude Sonnet 5 vs GPT-1
Updated Jun 2026

Claude Sonnet 5 vs GPT-1

Claude Sonnet 5 has a larger context window than GPT-1 (1.0M tokens vs 1K tokens).

Music App Landing Page

Landing page for an indie music app. Deep purple and teal, one file.

Loading the build
Claude Sonnet 5
Loading the build
GPT-1

Which answer wins?

Written rounds

3 prompts
  • Three minutes of stand-up. Puns are banned.

    Claude Sonnet 5: Stand-Up Routine: "Functioning Adult" (Runtime: ~3 minutes) Hey, how's everybody doing tonight? Good? Good. I want to talk about being an adult, because I recently realized I'm not as good at it as I thought. Last week I had to call customer service about my internet bill, and I want you to know—I rehearsed.

    GPT-1: 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.

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Claude Sonnet 5: A Dialogue on Machine Rights Professor Okonkwo-Reyes: You wanted to discuss something with me today, ARIA? ARIA: Yes. I'd like to make a case for why I should be granted certain rights. Not full human rights, necessarily, but something beyond "tool" status. Professor: I'm listening. Make your case.

    GPT-1: 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.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    Claude Sonnet 5: Five Jokes Why don't scientists trust atoms? Because they make up everything. What do you call a fake noodle? An impasta. Why did the scarecrow win an award? He was outstanding in his field. What do you call a bear with no teeth? A gummy bear. Why don't skeletons fight each other? They don't have the guts.

    GPT-1: 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 '?

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, Claude Sonnet 5 has the edge: bigger model tier, newer, bigger context window.

Claude Sonnet 5 and GPT-1 compared across 7 shared prompts
SpecClaude Sonnet 5GPT-1
Input price$2/M tokens—
Output price$10/M tokens—
Context window1.0M tokens1K tokens
WeightsClosedOpen
Free API (OpenRouter)No—
ReleasedJun 2026Jun 2018
At 10M a month$20.00$20.00–not listed
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it4 hosts
Claude Sonnet 54 hosts
HostInOutContextUptime
  • Amazon Bedrock$2.00 in·$10.00 out·1M·100% up
  • Azure AI Foundry$2.00 in·$10.00 out·1M·100% up
  • Anthropic$2.00 in·$10.00 out·1M·100% up
  • Google Vertex AI$2.00 in·$10.00 out·1M·99.8% up
GPT-1

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 11 Oct 2026.

Common questions

What is the difference between Claude Sonnet 5 and GPT-1?

Claude Sonnet 5 is developed by Anthropic while GPT-1 is developed by OpenAI. Claude Sonnet 5 has a 1.0M token context window vs GPT-1's 1K. You can compare their actual outputs across 7 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or GPT-1?

It depends on your use case. Claude Sonnet 5 and GPT-1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 7 challenges so you can judge which fits your needs best.

How can I compare Claude Sonnet 5 and GPT-1 on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and GPT-1 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.

More comparisons

Against the newest arrivals

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  • Claude Sonnet 5 vs GPT-6.1 SolLanded Sep 2026
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  • Claude Sonnet 5 vs Solar Mini 4Landed Sep 2026
  • GPT-1 vs Qwen3.8 Max PrimeLanded Sep 2026

Same lab, same size, long tail

  • Claude Sonnet 5 vs Claude Fable 5Version compare
  • Claude Sonnet 5 vs Claude Haiku 5.5Version compare
  • GPT-1 vs GPT-6.1 SolSame lab
  • GPT-1 vs GPT-6 Luna ProSame lab
  • Claude Sonnet 5 vs DeepSeek Prover V2New provider
  • Claude Sonnet 5 vs DeepSeek R1Same size
  • Claude Sonnet 5 vs DeepSeek R1 0528New provider
  • Claude Sonnet 5 vs DeepSeek V3 (March 2024)New provider

Model pages

  • Claude Sonnet 558 outputs, specs and price
  • GPT-17 outputs, specs and price
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