Compare GPT-4 by OpenAI against xAI: Grok 4 by xAI, context windows of 8K vs 256K, tested across 20 shared challenges. Updated April 2026.
GPT-4 and xAI: Grok 4 are both competitive models. GPT-4 costs $30/M input tokens vs $3/M for xAI: Grok 4. Context windows: 8K vs 256K tokens. Compare their real outputs side by side below.
GPT-4 is made by openai while xAI: Grok 4 is from xai. GPT-4 has a 8K token context window compared to xAI: Grok 4's 256K. On pricing, GPT-4 costs $30/M input tokens vs $3/M for xAI: Grok 4.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
xAI: Grok 4 is 4.0x cheaper per token — worth considering if cost matters.
xAI: Grok 4 uses 7.0x more emoji
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Ask them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
20 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
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.
Below is a comprehensive, cutting-edge 3-month longevity plan designed specifically for a biohacker aiming to optimize longevity (e.g., cellular repair, telomere health, inflammation reduction), physical performance (e.g., strength, endurance, recovery), and cognitive performance (e.g., focus, memory, neuroplasticity). This plan draws from the latest research in biohacking, longevity science (e.g., inspired by David Sinclair's work on sirtuins and NAD+), and performance optimization (e.g., protocols from Huberman Lab and Rhonda Patrick).
The plan is divided into three monthly phases: Foundation (Month 1) for building habits and baselines; Optimization (Month 2) for intensifying protocols; Integration (Month 3) for peaking and sustainability. Each phase includes detailed sections on diet, supplements, exercise, tracking, stress resilience, and other biohacks.
Focus: Establish metabolic flexibility, baseline tracking, and gentle introductions to protocols. Goal: Reduce inflammation, improve sleep, and build resilience without overload.
Cycle: Take daily unless noted; split doses AM/PM. Source high-quality (e.g., Thorne, Life Extension).
Focus: Intensify for metabolic and neural adaptations. Build on Month 1 baselines—expect improved energy and focus. Goal: Enhance mitochondrial function, muscle hypertrophy, and cognitive sharpness.
Cycle: Introduce rotations; e.g., week 1-2 full stack, week 3-4 reduce NMN to 250mg.
Focus: Fine-tune for sustainability and peak outputs. Goal: Lock in habits for long-term longevity while pushing performance boundaries.
Cycle: Taper for sustainability—e.g., reduce NMN to 250mg 3x/week.
This plan is actionable and evidence-based, blending protocols like fasting-mimicking (Valter Longo) with biohacking staples. Track diligently, iterate, and celebrate wins. For personalization, consider a coach via platforms like FoundMyFitness. Stay consistent—longevity is a marathon!
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.
Below is my design for an innovative, multi-component dish titled "Abyssal Bloom". This dish is conceived for a Michelin 3-star restaurant setting, emphasizing precision, artistry, and sensory surprise. It features an unusual ingredient pairing: sea urchin (uni) with black sesame and fermented black garlic, evoking the briny depths of the ocean contrasted with earthy, umami-rich darkness. This pairing is unconventional because sea urchin is typically celebrated for its clean, oceanic sweetness, while black sesame and fermented black garlic introduce nutty, licorice-like bitterness and funky depth—creating a "bloom" of flavors that mimics an underwater flower unfurling in shadowy waters.
"Abyssal Bloom" draws inspiration from the mysterious bioluminescent ecosystems of deep-sea trenches, where delicate life forms thrive amid darkness and pressure. The dish symbolizes resilience and revelation: the sea urchin's fragile, custardy texture represents vulnerable ocean life, while the black sesame and fermented black garlic evoke the "abyssal" shadows, transformed through fermentation and dehydration into something profound. Advanced techniques like spherification, sous-vide, and nitro-freezing highlight transformation under controlled "pressure," mirroring nature's extremes. The result is a harmonious tension—briny sweetness pierced by earthy funk—that challenges the palate, encouraging diners to explore flavor depths. This narrative ties into sustainability, using responsibly sourced uni to promote ocean conservation.
The dish serves 4 as a tasting portion and requires about 3 hours of active preparation, plus overnight elements. It incorporates molecular gastronomy for whimsy, precise cooking for luxury textures, and artistic plating for visual poetry.
This sous-vide custard provides a silky foundation, infused with uni's natural brine for a subtle "bloom" of sea flavor.
This espuma (foam) uses siphon technique for lightness, pairing the nutty bitterness of black sesame with the mellow funk of black garlic to counter the uni's sweetness.
Abalone is cryoseared for tenderness, then paired with agar-gel "petals" that encapsulate the unusual black sesame-yuzu pairing, adding a burst of acidity.
Spherification creates caviar-like orbs that burst with the unusual pairing, adding interactivity.
Plating evokes an abyssal flower blooming on a dark seafloor, using negative space for elegance.
This dish demands impeccable timing and technique, rewarding the chef with a multi-sensory experience that could earn acclaim in a 3-star kitchen. If adapting, ensure all ingredients are fresh and sustainably sourced. Bon appétit!
Create a detailed voxel art scene of a pagoda in a beautiful garden using ThreeJS
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