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  1. Home/
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  3. Claude 3 Opus vs Laguna XS 2.1 (free)
Updated Jul 2026

Claude 3 Opus vs Laguna XS 2.1 (free)

Laguna XS 2.1 (free) is cheaper than Claude 3 Opus at $0/M vs $15/M input tokens.

Framer-Style Animation

Sections that transition like Framer. Timing is the whole grade.

Loading the build
Claude 3 Opus
Loading the build
Laguna XS 2.1 (free)

Which answer wins?

Written rounds

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

    Claude 3 Opus: Here's a 3-minute stand-up comedy routine that isn't based on puns: You know what really grinds my gears? Adulthood. I mean, when we were kids, we couldn't wait to grow up. We thought it would be all about staying up late, eating ice cream for breakfast, and doing whatever we wanted. Boy, were we wrong!

    Laguna XS 2.1 (free): [Opening] Walks on stage, adjusts mic "So, I’ve been trying to disconnect from technology lately. Which is funny, because my phone is literally trying to disconnect from me. It keeps showing me this little red badge that says, ‘Battery at 5%.’

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

    Claude 3 Opus: Here are 5 jokes I generated: Why don't scientists trust atoms? Because they make up everything! What do you call a boomerang that doesn't come back? A stick. Why was the math book sad? Because it had too many problems. Did you hear about the mathematician who's afraid of negative numbers?

    Laguna XS 2.1 (free): Here are 5 jokes: Pun: Why don’t scientists trust atoms? Because they make up everything! Knock-knock: Knock knock. Who’s there? Lettuce. Lettuce who? Lettuce in, it’s cold out here! One-liner: I told my wife she was drawing her eyebrows too high. She looked surprised. Math joke: Why was 6 afraid of 7? Because 7, 8, 9!

    Every model's answer to this prompt

Price and specs

Not enough votes to call it. On the specs, Claude 3 Opus has the edge: bigger model tier, major provider backing.

Claude 3 Opus and Laguna XS 2.1 (free) compared across 7 shared prompts
SpecClaude 3 OpusLaguna XS 2.1 (free)
Input price$15/M tokensFree
Output price$75/M tokensFree
Context window200K tokens262K tokens
Free API (OpenRouter)NoYes (1 provider)
ReleasedMar 2024Jul 2026
At 10M a month$150$150$0$0
1M10M100M1B10M tokens

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

Where to run it1 host
Claude 3 Opus

No hosts listed on OpenRouter.

Laguna XS 2.1 (free)1 host
HostInOutContextUptime
  • PPoolsidefp8$0 in·$0 out·262k·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between Claude 3 Opus and Laguna XS 2.1 (free)?

Claude 3 Opus is developed by Anthropic while Laguna XS 2.1 (free) is developed by Poolside. Claude 3 Opus has a 200K token context window vs Laguna XS 2.1 (free)'s 262K. You can compare their actual outputs across 7 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Laguna XS 2.1 (free)?

It depends on your use case. Claude 3 Opus and Laguna XS 2.1 (free) 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 much does Claude 3 Opus cost compared to Laguna XS 2.1 (free)?

Claude 3 Opus costs $15/M input tokens and Laguna XS 2.1 (free) costs $0/M input tokens. Laguna XS 2.1 (free) is $15.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude 3 Opus and Laguna XS 2.1 (free) on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Laguna XS 2.1 (free) 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.

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Same lab, same size, long tail

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Model pages

  • Claude 3 Opus12 outputs, specs and price
  • Laguna XS 2.1 (free)38 outputs, specs and price
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