Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy policy
  • Terms
  • RSS feed
  1. Home/
  2. Compare/
  3. Laguna XS 2.1 (free) vs Optimus Alpha
Updated Jul 2026

Laguna XS 2.1 (free) vs Optimus Alpha

Optimus Alpha has a larger context window than Laguna XS 2.1 (free) (1.0M tokens vs 262K tokens).

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
Laguna XS 2.1 (free)
Loading the build
Optimus Alpha

Which answer wins?

Written rounds

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

    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%.’

    Optimus Alpha: Absolutely! Here's a 3-minute stand-up routine with no puns—just observational and relatable humor: You ever try to get healthy, but your body's like, "Whoa, whoa... calm down, superhero." I joined a gym—first time walking in, the treadmill looked at me like, "We both know you're here for the wifi."

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

    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!

    Optimus Alpha: Here are 5 jokes: Why did the scarecrow win an award? Because he was outstanding in his field! Why don't scientists trust atoms? Because they make up everything! Why did the bicycle fall over? Because it was two-tired! What do you call fake spaghetti? An impasta! I used to play piano by ear, but now I use my hands.

    Every model's answer to this prompt
  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    Laguna XS 2.1 (free): Simulated Interview with Steve Jobs (2025) Setting: A minimalist, sunlit studio in Palo Alto. Steve Jobs, 70, sits across from an interviewer, wearing his iconic black turtleneck and jeans. The camera rolls. Interviewer: Steve, you’ve been gone for a decade, but your vision still shapes how we live with technology.

    Optimus Alpha: Interviewer: Steve, it's surreal and inspiring to imagine talking to you in 2025. The world is buzzing about AI. How do you see AI impacting society? Steve Jobs: Thank you. You know, when we built the Mac, our goal was to put power in people's hands.

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    Laguna XS 2.1 (free): To estimate the total number of FLOPs required to train GPT-3, we use a standard formula for large language models: Total FLOPs ≈ 6 × Parameters × Tokens Step-by-Step Reasoning: Parameters: GPT-3 has 175 billion parameters (175 × 10⁹). Tokens: The model was trained on 300 billion tokens (3 × 10¹¹).

    Optimus Alpha: Let's walk through an estimation of how many FLOPs were required to train GPT-3, using only reasoning and not searching for the exact numbers. Step 1: Understand Model Size GPT-3 (the original) had 175 billion parameters.

    Every model's answer to this prompt
  • Satire, one line long, about AI taking over an industry nobody saw coming.

    Laguna XS 2.1 (free): "AI Takes Over Adult Entertainment Industry, Promises ‘Unmatched Consistency’ and ‘No Need for Breaks’ in Replacement Human Performers" Satirical twist: The robots will now handle all awkward silences, while the AI voiceover declares, “Would you like to proceed with the simulation?”

    Optimus Alpha: AI Now Dominates Competitive Sheep Herding, Local Border Collies Seek Retraining in Data Science

    Every model's answer to this prompt

Price and specs

Laguna XS 2.1 (free) and Optimus Alpha compared across 10 shared prompts
SpecLaguna XS 2.1 (free)Optimus Alpha
Input priceFree—
Output priceFree—
Context window262K tokens1.0M tokens
Free API (OpenRouter)Yes (1 provider)—
ReleasedJul 2026Apr 2025
At 10M a month$0$0–not listed
1M10M100M1B10M tokens

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

Where to run it1 host
Laguna XS 2.1 (free)1 host
HostInOutContextUptime
  • PPoolsidefp8$0 in·$0 out·262k·99.8% up
Optimus Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 28 Sep 2026.

Common questions

What is the difference between Laguna XS 2.1 (free) and Optimus Alpha?

Laguna XS 2.1 (free) is developed by Poolside while Optimus Alpha is developed by OpenRouter. Laguna XS 2.1 (free) has a 262K token context window vs Optimus Alpha's 1.0M. You can compare their actual outputs across 10 challenges on Rival to see how they differ in practice.

Which is better, Laguna XS 2.1 (free) or Optimus Alpha?

It depends on your use case. Laguna XS 2.1 (free) and Optimus Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 10 challenges so you can judge which fits your needs best.

How can I compare Laguna XS 2.1 (free) and Optimus Alpha on Rival?

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

More comparisons

Against the newest arrivals

  • Laguna XS 2.1 (free) vs Solar Mini 4Landed Sep 2026
  • Optimus Alpha vs Qwen3.8 Max PrimeLanded Sep 2026
  • Laguna XS 2.1 (free) vs GLM 5.3 PrimeLanded Sep 2026
  • Optimus Alpha vs Qwen3.8 Omni FlashLanded Sep 2026
  • Laguna XS 2.1 (free) vs Command A+Landed Sep 2026
  • Optimus Alpha vs Claude Opus 5.5Landed Sep 2026
  • Laguna XS 2.1 (free) vs GPT-6 Luna ProLanded Sep 2026
  • Optimus Alpha vs GPT-6 Sol ProLanded Sep 2026

Same lab, same size, long tail

  • Laguna XS 2.1 (free) vs Laguna S 2.1 (free)Same lab
  • Laguna XS 2.1 (free) vs Ox AlphaSame size
  • Optimus Alpha vs Ox AlphaSame lab
  • Optimus Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
  • Laguna XS 2.1 (free) vs o1New provider
  • Laguna XS 2.1 (free) vs OpenAI o3New provider
  • Laguna XS 2.1 (free) vs o3 MiniNew provider
  • Laguna XS 2.1 (free) vs OpenAI o4-miniNew provider

Model pages

  • Laguna XS 2.1 (free)38 outputs, specs and price
  • Optimus Alpha19 outputs, specs and price
Workshop · 150 skills

Build your own version.

Editable skills and working examples for your agent.

Explore $79Free sample
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy policy
  • Terms
  • RSS feed