Compare GPT-4 and GPT-5.3 Chat, both from OpenAI, context windows of 8K vs 128K, tested across 21 shared challenges. Updated March 2026.
21 fights queued
Tests an AI's ability to generate vector graphics
As a AI text-based model, I'm currently unable to create SVG or any kind of images. However, I can guide you on how to do that. You will need to sketch a pelican riding a bicycle, scan or digitally draw your design, and then use a vector graphic software like Adobe Illustrator or Inkscape to create an SVG file of your design.
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Recreate an interactive, classic Mario level in a single HTML file.
We can’t display this one. It’s not us. Well… it might be us.
The model was asked for a web page. It produced something else. We’re not going to define what.
Sorry, as a text-based AI, I'm unable to create a single-page self-contained HTML for a Super Mario Bros. level. However, I can provide a rough sketch of how the level can be designed. Level Name: Mushroom Heights 1. The level starts in a small room with a "Mushroom" power-up. The player must jump up to reach it. This introduces players to the jumping mechanic. 2. The player then exits the room and enters a wide, open area. There are several platforms at different heights, each with a different enemy. This introduces players to the combat mechanic, as they must navigate past or defeat these enemies. 3. Next, the player encounters a series of pipes. Some pipes have piranha plants coming out of them, while others can be entered to reach hidden areas. This introduces players to the mechanic of entering pipes. 4. In the hidden areas, there are various power-ups and coins. The hidden areas are optional but reward exploration. 5. The level then has a series of tricky jumps, including moving platforms and areas where the player must jump off of enemies to reach high places. This tests the player's mastery of the jumping mechanic. 6. Finally, the level ends with a flagpole that the player must slide down. This is a classic ending to a Mario level. Remember that this is just a rough sketch and the actual implementation would require a lot of coding and graphic design. Each part of the level should be designed in a way that it gradually introduces players to the game's mechanics and then tests their mastery of them. It's also important to keep the level fun and engaging, with a mix of challenges and rewards.
Tests an AI's ability to create smooth web animations
Tests an AI's ability to create a detailed world map in SVG format
Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.
Generate SVG art of a randomly chosen animal in a setting of its choosing.
Generate a unique and simple recipe with common ingredients.
Create a starter plan for improving long-term health.
Recreate a classic, retro, macOS Desktop UI. Make it interactive and nostalgic, make it as interactive as you can, you can be creative. Feel free to showcase your skills. The entire application must be a single-page self-contained HTML file.
Develop a cutting-edge 3-month longevity plan for a biohacker.
3-Month Longevity Plan
Month 1: Ketogenic Diet This diet is high in fats, moderate in protein, and low in carbohydrates. It helps in burning fat more effectively.
Breakfast: 2 eggs, avocado, and mixed vegetables. Lunch: Grilled salmon with a side of asparagus. Dinner: Stir-fried chicken with broccoli. Snacks: Nuts, seeds, and cheese.
Month 2: Intermittent Fasting Skip breakfast and eat during an 8-hour feeding window, e.g., 12-8 PM. This type of fasting can potentially reduce inflammation, improve heart health, and boost brain function.
Month 3: Caloric Restriction Lower your daily caloric intake by 20-30% while maintaining adequate nutrient density. This approach has been shown to decelerate the aging process in many species.
-Resveratrol (500mg daily): Antioxidant that activates longevity genes. -NMN (500mg daily): Boosts NAD levels, critical for cellular health and longevity. -PQQ (20mg daily): Enhances mitochondrial function. -CoQ10 (200mg daily): Supports heart health and energy production. -Curcumin (500mg daily): Anti-inflammatory and anti-oxidant benefits. -Vitamin D3 (5000 IU daily): Supports immune function and bone health.
Week 1-4: Strength Training Focus on compound movements like squats, deadlifts, bench press, and pull-ups. Aim for 3 sessions weekly.
Week 5-8: High-Intensity Interval Training (HIIT) Alternate between 30-second sprints and 1-minute rest periods. Do this 2-3 times per week.
Week 9-12: Active Recovery Incorporate light activities such as yoga or swimming. Daily walks are also beneficial.
Advanced Wearable Tracking Use a device like an Oura Ring or Biostrap to monitor sleep quality, heart rate variability (HRV), and physical activity. Aim for an HRV above 60, a resting heart rate below 60, and at least 7 hours of sleep per night.
Stress Resilience Techniques
HRV Training: Use an app like Elite HRV to train your body to respond better to stress. Aim for 15 minutes daily.
Neurofeedback: Use a device like Muse to improve your brain's resilience to stress via biofeedback. Aim for at least 10 minutes daily.
Cold and Heat Exposure: Alternate between hot saunas and cold showers to boost the immune system and improve cardiovascular health.
Red Light Therapy: Use a device like Joovv for 10 minutes daily to improve skin health and boost energy.
Sleep Hygiene: Ensure your room is dark, cool, and quiet. Avoid screens 2 hours before bed.
Remember, everyone's body responds differently, so it's essential to regularly monitor your bio-markers and adjust the plan accordingly. Always consult with a healthcare provider before starting any new regimen.
This plan assumes a healthy adult with no medical conditions. Some supplements or fasting protocols can interact with medications or health conditions, so medical supervision and bloodwork are strongly recommended.
High-level structure (12 weeks)
Core tracking stack (daily)
Wearables
Daily metrics to monitor
Blood tests (week 0, week 6, week 12)
Daily schedule template
Morning
Midday
Evening
Sleep window
Supplement stack
Foundation (daily)
Morning
Longevity compounds (cycle)
Cycle A (Weeks 1–4)
Cycle B (Weeks 5–8)
Cycle C (Weeks 9–12)
Cognitive stack
Work days
Sleep stack
Diet protocol
Primary diet: cyclical ketogenic Mediterranean
Macros (training days)
Rest days
Foods emphasized
Avoid
Fasting schedule
Weekly
Monthly
During fasting
Exercise protocol
Goal: maximize VO2max, muscle, mitochondrial density.
Weekly layout
Day 1 Strength (lower body)
Zone 2 cardio
Day 2 VO2max intervals
Mobility session 20 min
Day 3 Strength (upper body)
Zone 2 cardio 30 min
Day 4 Recovery day
Day 5 Full body strength
HIIT finisher
Day 6 Long Zone 2
Day 7 Active recovery
Heat and cold exposure
Sauna protocol (3–4x weekly)
Longevity benefit: cardiovascular mortality reduction
Cold exposure
Frequency: 3x weekly (not right after hypertrophy training)
Cognitive optimization
Morning
Midday
HRV breathing
Optional advanced tools
Recovery and regeneration
Night protocol
Sleep optimization
Weekly recovery
Advanced biohacker tools (optional)
Red/NIR light therapy
Peptide cycles (only under medical supervision)
Hyperbaric oxygen therapy
Month-specific emphasis
Month 1 Focus
Targets
Month 2 Focus
Add
Month 3 Focus
Add
Key longevity markers to aim for
If you'd like, I can also build:
Design an innovative, multi-component dish worthy of a 3-star Michelin restaurant.
Dish Name: Symphony of Scarlet Prawn and Yuzu
Conceptual Narrative: This dish is a harmonious interplay of land and sea, with the sweetness of scarlet prawns, a gem of the deep sea, and the refreshing, fragrant citrus notes of yuzu fruit, a treasure from the land. It celebrates the fusion of Italian and Japanese gastronomy, bringing together the refined simplicity of the East with the bold, robust flavors of the Mediterranean.
Ingredients:
Specialized Ingredients: Scarlet prawns: These red prawns are native to the Mediterranean sea and are renowned for their sweet, delicate flavor. They can be sourced from high-end seafood markets. Yuzu fruit: This aromatic Japanese citrus fruit is not commonly found in Western supermarkets. It can be ordered from Asian grocery stores or online.
Instructions:
Scarlet Prawn Brodo: Clean the prawns, reserving the shells. In a heated pan, add the shells with a bit of olive oil and toast till they turn red. Add sake and let it simmer until the alcohol evaporates. Pour in fish stock, and let it simmer for 30 minutes. Strain the broth, add a pinch of salt, and set aside.
Yuzu Risotto: Finely chop the shallot and sauté in a pan with butter until translucent. Add Arborio rice and stir until the grains are well coated and slightly toasted. Deglaze the pan with a splash of sake. Once the sake has evaporated, start adding the prawn brodo, one ladle at a time, stirring continuously. Repeat until the rice is cooked al dente. Grate the rind of the yuzu fruit into the risotto and squeeze in some juice for a burst of citrus flavor. Fold in grated Parmigiano Reggiano and a knob of butter to make the risotto creamy.
Scarlet Prawn: Season the prawns with salt and sear them in a hot pan with olive oil. Cook each side for about 2 minutes until they turn opaque.
Plating: Mold the risotto in the center of the plate using a ring mold. Arrange the prawns around the risotto. Drizzle some prawn brodo around the plate. Garnish with fresh dill and thin slices of yuzu peel for a pop of color and freshness.
This dish presents a beautiful contrast of colors, and a delectable interplay of flavors and textures. The sweet, succulent prawns paired with the creamy, citrusy risotto create a symphony of flavors that is both familiar and surprising. The presentation is simple yet elegant, reflecting the minimalism of Japanese aesthetics and the heartiness of Italian cuisine.
Dish name: “Forest & Tide: Scallop, Aged Soy, Pine, and Dark Chocolate”
Concept narrative
This dish explores the meeting point of ocean depth and forest aromatics. Sweet raw scallop is paired with an unexpected partner: extremely light dark chocolate bitterness and pine brightness. Fermented soy adds umami bass notes while mushroom and seaweed connect land and sea. The chocolate is used in a restrained, savory way, echoing the bitterness chefs sometimes achieve with char or coffee. The plating evokes a shoreline where a forest meets the sea.
Primary components
Serves: 4 tasting portions
Special ingredient sourcing notes
Ingredients
Steps
Remove scallops from shells. Reserve coral separately for espuma.
Pat scallops completely dry.
Place on a rack over a tray lined with paper towels.
Leave uncovered in refrigerator 24 hours. Air circulation concentrates flavor and firms texture.
Before service, trim edges into perfect cylinders. Slice each scallop into 3 horizontal discs.
Pine and cocoa nib emulsion Ingredients
Steps
Warm oil to 60°C. Add pine needles and cocoa nibs. Infuse 30 minutes.
Blend briefly and strain through fine filter. Oil should taste gently resinous and faintly chocolatey.
In blender: egg yolk, mustard, vinegar.
Slowly stream in infused oil to create a glossy emulsion similar to loose mayonnaise.
Season lightly with soy sauce. Chill in squeeze bottle.
Black garlic–soy glaze Ingredients
Steps
Blend black garlic with soy until smooth.
Simmer mixture with mirin and dashi until lightly syrupy.
Add rice vinegar to brighten.
Strain to a glossy glaze consistency.
Porcini–kombu sand Ingredients
Steps
Toast panko in butter until deep golden.
Grind porcini and kombu into fine powder.
Combine with panko to form aromatic “sand.”
Keep dry for plating.
Pickled green strawberry Ingredients
Steps
Heat vinegar, water, sugar, salt until dissolved.
Cool slightly.
Pour over sliced fruit and pickle 30 minutes.
Drain before plating.
Pine oil Ingredients
Steps
Blend oil with pine needles at high speed 2 minutes.
Heat gently to 70°C then strain through coffee filter.
Result: vivid green aromatic oil.
Scallop coral espuma Ingredients
Steps
Gently sauté coral in butter until just cooked.
Blend with warm cream and dashi.
Strain extremely fine.
Charge in siphon with one N2O cartridge.
Keep warm at ~55°C.
Tempered chocolate shards Ingredients
Steps
Plating (Michelin style composition) Use a wide matte stone plate.
Flavor experience
The dish aims to surprise without overwhelming: chocolate behaves like a subtle bitter spice while pine and kombu connect forest and sea into a unified tasting narrative.
9+ head-to-head challenges. All of them judged by real people.
5 credits on us when you join
By continuing, you agree to Rival's Terms of Service and Privacy Policy
