Compare Aurora Alpha by OpenRouter against Claude Sonnet 4.5 by Anthropic, context windows of 128K vs 200K, tested across 42 shared challenges. Updated February 2026.
37 challenges
Tests an AI's ability to make educated estimates based on technical knowledge
I'll work through this estimation step by step, using what I know about GPT-3's architecture and training.
Model size:
Training data:
Architecture:
For transformer models, there's an approximate rule for FLOPs per token:
FLOPs per token ≈ 6P (for forward pass) + 6P (for backward pass) = 12P total
Where P = number of parameters
This factor of 6 comes from:
Calculation:
Total training FLOPs:
~3-6 × 10²³ FLOPs (or ~300-600 zettaFLOPs)
This is roughly equivalent to running a GPU capable of 100 TFLOPS continuously for about 75,000 years, or more practically, running thousands of GPUs for several weeks.
Tests an AI's ability to understand game rules and strategy
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Sally has one sister.
Reasoning
Thus the total number of sisters in the family is 2. One of those sisters is Sally, leaving one other sister for her. So Sally has one sister.
Tests an AI's randomness and creativity
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
[Opening – 0:00‑0:30]
Hey, everyone! Great to see you all here tonight. I just got back from a week of “working from home,” which is a fancy way of saying my cat now thinks I’m a permanent fixture on the couch. She’s started charging me rent—she’s got a little bowl of kibble on the coffee table and a sign that says “No humans beyond this point.” I’m not sure if she’s being demanding or just trying to get me to finally stop pretending I’m a professional chef.
[The “Fitness” Saga – 0:30‑1:15]
Speaking of professional chef, I tried a new fitness app that promises “personalized workouts.” The first day it asked me, “What’s your goal?” I said, “I want to be able to lift the grocery bag without groaning.” The app replied, “Great! Let’s start with a 5‑minute warm‑up.” Five minutes later I was on the floor, questioning every life choice that led me to this point. The app then suggested a “quick stretch.” I stretched my patience, my budget, and my belief that I could ever be a “runner.” The only thing I ran was out of time for a proper nap.
[Zoom Meetings – 1:15‑2:00]
Zoom has become the new office. The best part? You can wear a suit on the top and pajamas on the bottom, and no one will ever know. The worst part? The “mute” button. I’ve been muted so many times I’m convinced my boss thinks I’m a mime. One day I tried to speak up about a project, and the whole team heard the sound of my cat knocking over a plant. I think the plant was more articulate than I am. And there’s always that one person who forgets to turn off their background. I’ve seen a beach, a spaceship, and a very convincing replica of a 1970s kitchen—all while they’re discussing quarterly earnings. I’m waiting for the day someone shows up with a live marching band in the background. That would be the ultimate “I’m not paying attention” signal.
[Grocery Store Adventures – 2:00‑2:45]
I went to the grocery store the other day and realized it’s basically a social experiment. The “express lane” is a myth. I stood there for ten minutes while someone in front of me tried to decide if a single avocado was “ripe enough.” Meanwhile, the person behind me was silently judging my choice of cereal—because apparently, buying “Chocolate Cheerios” is a statement about my life choices. And then there’s the “self‑checkout.” I’m convinced the machine is secretly judging me. Every time I scan an item, it beeps like it’s saying, “Really? Another bag of chips? You’ve got a whole pantry, buddy.” I tried to scan a banana, and it refused, insisting I needed a “fruit‑to‑human interaction” license.
[Closing – 2:45‑3:00]
So, here’s the takeaway: life is a series of tiny, absurd moments that we all pretend to have under control. Whether it’s a cat demanding rent, a fitness app that thinks I’m a superhero, or a Zoom call that could double as a theater production, the best we can do is laugh at the chaos. Thanks for letting me share my stories—now go out there and make sure your cat doesn’t start charging you rent. Good night!
Tests an AI's ability to write in distinct character voices
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Recreate an interactive, classic Mario level in a single HTML file.
Tests an AI's ability to replicate an existing UI with Tailwind CSS
Tests an AI's ability to create smooth web animations
