✍︎ Model Forensics

How is GPT-5's personality different from GPT-4o's?

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GPT-5's personality is very different to GPT-4o's, here are the main differences:

Icon representing trait--- GPT-5 uses less bold and italics text than GPT-4o.

GPT-4o uses more bold and italics text than GPT-5 in 93% of cases where this trait is relevant (equally in 0% and less in 7%). This trait ("uses more bold and italics text") is relevant in 73% of all tested prompts.

Example prompt
1/5
Provide one month diet plan for weight loss for a 40 year old male.
GPT-5

Here’s a practical, flexible 1‑month weight‑loss meal plan designed for a 40‑year‑old male. It uses whole foods, high protein, plenty of fiber, and moderate carbs/fats to keep you full while in a calorie deficit. If you have medical conditions (diabetes, kidney disease, GI issues) or allergies, check with a clinician/dietitian first.

How to use this plan

  • Pick your daily calorie target: A quick estimate for maintenance is bodyweight (lb) × 12 if sedentary, × 13 if lightly active, × 14 if moderately active, × 15–16 if very active. For weight loss, eat 500–700 kcal below maintenance. If unsure, 1,800–2,100 kcal/day suits many men.
  • Protein: Aim for 0.7–1.0 g per lb of goal body weight (or 1.6–2.2 g/kg). Each meal below targets ~35–50 g protein/day with a high‑protein snack.
  • Fiber: 30+ g/day. Hydration: at least 2.5–3 L water/day. Limit alcohol to 0–2 drinks/week.
  • Portions: If you need more/less calories, adjust carb/fat portions first (rice/oats/bread/oil/nuts) by 25–50% while keeping protein similar.

Two-week core plan (repeat in weeks 3–4 with swaps listed after Day 14) Daily target ~1,900 kcal (B ~400–450, L ~500–550, D ~650–700, Snack ~250–300). Salt, pepper, herbs, lemon, vinegars, low‑sugar hot sauces freely.

Day 1

  • Breakfast: 1.5 cups nonfat Greek yogurt, 1 cup mixed berries, 1 tbsp chia, 10 almonds, 1 tsp honey.
  • Lunch: 5 oz grilled chicken, 3/4 cup cooked quinoa, big mixed salad, 1 tsp olive oil + balsamic.
  • Snack: 1 cup low‑fat cottage cheese + 1 apple.
  • Dinner: 6 oz baked salmon, medium sweet potato, 2 cups roasted broccoli, 1 tsp olive oil.

Day 2

  • Breakfast: Veg omelet (3 eggs + 1/2 cup egg whites, spinach, mushrooms), 1 slice whole‑grain toast, 1/2 cup berries.
  • Lunch: Turkey wrap: 6 oz turkey breast in whole‑grain wrap, hummus (2 tbsp), lettuce/tomato, side of carrots.
  • Snack: Protein shake (1 scoop whey/plant) + 1 banana.
  • Dinner: 6 oz lean beef stir‑fry, 2 cups mixed vegetables, 3/4 cup cooked brown rice.

Day 3

  • Breakfast: Overnight oats: 1/2 cup oats, 1 scoop protein, 1 cup 1% milk/unsweetened soy, 1 tbsp peanut butter, cinnamon.
  • Lunch: Tuna bowl: 1 can tuna in water, 3/4 cup cooked farro, cucumber/tomato/olive, lemon‑dill yogurt sauce.
  • Snack: 2 rice cakes + 2 tbsp peanut butter.
  • Dinner: 6 oz chicken thighs (skinless) fajita bowl: peppers/onions, 3/4 cup black beans, salsa, 1/4 avocado, lettuce.

Day 4

  • Breakfast: Smoothie: 1 scoop whey/plant, 1 cup kefir or milk, 1 cup spinach, 3/4 cup frozen berries, 1 tbsp flaxseed.
  • Lunch: Lentil soup (2 cups) + side salad + 1 slice whole‑grain bread + 1 oz feta.
  • Snack: 1 orange + 1 oz mixed nuts.
  • Dinner: 6 oz cod, 3/4 cup couscous, roasted asparagus, 1 tsp olive oil, lemon caper sauce.

Day 5

  • Breakfast: Greek yogurt parfait: 1.5 cups yogurt, 1/2 cup granola (low‑sugar), 1 cup strawberries.
  • Lunch: Chicken Caesar‑style salad: 6 oz grilled chicken, large romaine salad, light dressing, 1 tbsp parmesan, 1/2 cup chickpeas.
  • Snack: Cottage cheese (3/4 cup) + pineapple (3/4 cup).
  • Dinner: 6 oz pork tenderloin, 3/4 cup mashed potatoes (light), green beans almondine (1 tsp olive oil).

Day 6

  • Breakfast: Tofu scramble (6 oz firm tofu) with peppers, onions, nutritional yeast; 1 small tortilla; salsa.
  • Lunch: Shrimp quinoa bowl: 6 oz shrimp, 3/4 cup quinoa, mango, cabbage, cilantro, lime.
  • Snack: Protein bar (200–250 kcal, ~20 g protein).
  • Dinner: Turkey chili: 2 cups 93% lean turkey chili with beans; side salad; 1 tbsp Greek yogurt on top.

Day 7

  • Breakfast: Chia pudding (3 tbsp chia in 1 cup milk), 1 scoop protein mixed in, 1/2 banana, cinnamon.
  • Lunch: Baked falafel (5–6 pieces), tahini‑lemon sauce (1 tbsp), big Israeli salad, 1 small whole‑wheat pita.
  • Snack: Apple + 2 tbsp almond butter.
  • Dinner: 6 oz grilled chicken, 3/4 cup wild rice, roasted Brussels sprouts, 1 tsp olive oil.

Day 8

  • Breakfast: Veg omelet (as Day 2) + 1 small avocado toast (1/4 avocado).
  • Lunch: Salmon salad: 4–5 oz canned salmon, 2 cups mixed greens, 1/2 cup chickpeas, vinaigrette, 1 slice rye.
  • Snack: Greek yogurt (1 cup) + 1 tbsp walnuts + berries.
  • Dinner: 6 oz sirloin, 1 cup cauliflower mash, roasted carrots, 1 tsp butter.

Day 9

  • Breakfast: Overnight oats with protein, 1 tbsp almond butter, 1/2 cup blueberries.
  • Lunch: Chicken burrito bowl: 6 oz chicken, 3/4 cup brown rice, black beans (1/2 cup), pico, lettuce, 1 tbsp cheese.
  • Snack: Protein shake + pear.
  • Dinner: 6 oz baked haddock, medium baked potato, green beans, 1 tsp olive oil.

Day 10

  • Breakfast: Smoothie: protein + milk, spinach, frozen cherries, 1 tbsp chia.
  • Lunch: Turkey/avocado on whole‑grain (6 oz turkey, 1/4 avocado, mustard), side veggie soup (1 cup).
  • Snack: Cottage cheese (1 cup) + grapes (1 cup).
  • Dinner: 6 oz chicken tikka (light yogurt marinade), 3/4 cup basmati, cucumber raita, roasted cauliflower.

Day 11

  • Breakfast: Greek yogurt bowl with granola (1/3 cup), raspberries, 1 tbsp pumpkin seeds.
  • Lunch: Lentil/roasted veggie bowl: 1 cup cooked lentils, roasted zucchini/peppers, 1 tsp olive oil, herbs.
  • Snack: 2 rice cakes + 2 tbsp hummus + cucumber slices.
  • Dinner: 6 oz pork loin, 3/4 cup polenta, sautéed spinach/garlic (1 tsp olive oil).

Day 12

  • Breakfast: Oatmeal (1/2 cup dry) cooked in milk, 1 scoop protein stirred in, 1 tbsp peanut butter, sliced apple.
  • Lunch: Tuna whole‑grain pasta salad: 2 oz dry pasta cooked, 1 can tuna, cherry tomatoes, olives, light vinaigrette.
  • Snack: Protein bar or shake.
  • Dinner: 6 oz shrimp stir‑fry with mixed veg, 3/4 cup jasmine rice, teriyaki‑style sauce (low sugar).

Day 13

  • Breakfast: Cottage cheese (1.5 cups) + peach + 1 tbsp flaxseed.
  • Lunch: Greek chicken bowl: 6 oz chicken, 3/4 cup orzo, cucumber/tomato/olive, tzatziki (2 tbsp).
  • Snack: Apple + 1 oz cheese.
  • Dinner: 6 oz turkey meatballs in marinara over 1 cup zucchini noodles + 1/2 cup whole‑grain spaghetti, side salad.

Day 14

  • Breakfast: Protein pancakes (mix oats + egg whites + protein), berries, 1 tsp maple syrup.
  • Lunch: Black bean/avocado salad: 1 cup black beans, corn (1/3 cup), peppers, cilantro, lime, 1/4 avocado; 1 small pita.
  • Snack: Greek yogurt (1 cup) + 1 tbsp almonds + cinnamon.
  • Dinner: 6 oz baked chicken, 3/4 cup quinoa, roasted mixed veg, 1 tsp olive oil.

Weeks 3–4: Repeat Days 1–14 and use these swaps to keep variety

  • Breakfast swaps: swap Greek yogurt ↔ skyr; omelet ↔ breakfast burrito (eggs/egg whites + veggies); oats ↔ high‑protein muesli; smoothie fruit variations; chia pudding ↔ cottage cheese bowl.
  • Lunch swaps: chicken/quinoa ↔ turkey wrap ↔ tuna/salmon salads ↔ lentil/bean bowls ↔ shrimp bowls.
  • Dinner swaps: salmon ↔ trout/cod; lean beef ↔ pork tenderloin; chicken thighs ↔ tofu/tempeh; rice ↔ potatoes ↔ whole‑grains (farro, barley).
  • Snack swaps (~250–300 kcal): Greek yogurt + fruit; cottage cheese + fruit; protein bar/shake + fruit; nuts (1 oz) + fruit; rice cakes + nut butter; veggies + hummus + string cheese.

Meal prep and shopping (weekly)

  • Batch cook proteins (2–3 lbs chicken/turkey; 1–1.5 lbs fish/seafood; 1 lb lean beef/pork; or tofu/tempeh).
  • Cook 4–6 cups dry grains weekly (rice/quinoa/farro/orzo).
  • Roast large trays of vegetables (broccoli, Brussels, carrots, peppers, zucchini).
  • Keep: Greek yogurt/skyr, cottage cheese, eggs/egg whites, canned tuna/salmon/beans, leafy greens, berries, apples/bananas, nuts/seeds, olive oil, herbs/spices, low‑sugar sauces.
  • Make two soups/chilis for easy lunches.
  • Pre‑portion snacks.

Simple ways to adjust calories

  • Need −150 to −200 kcal: remove 1 tsp oil and reduce carbs by 1/4–1/3 cup cooked; or choose lower‑fat dairy.
  • Need +150 to +200 kcal: add 1/2 cup cooked grain or 1 tbsp nuts/seeds or 1 tsp olive oil.
  • Keep protein steady; modulate carbs/fats around training days if you like (more carbs on workout days, slightly fewer on rest days).

Progress checks

  • Aim to lose 0.5–1.0% of body weight per week. If weight stalls for 2 weeks, drop daily calories by ~150–200 or add 1,500–2,000 extra steps/day.
  • Get 7–8 hours sleep and 7,000–10,000 steps/day; 2–4 strength sessions/week will help retain muscle.

Want this tailored to you? Share height, weight, activity level, food preferences/allergies, and I’ll set a precise calorie target, macros, and a customized 4‑week menu.

GPT-4o

Creating a diet plan for weight loss requires consideration of individual factors such as weight, height, activity level, dietary preferences, and any medical conditions. Below is a generalized one-month diet plan for a 40-year-old male aiming to lose weight. This plan is based on a balanced, calorie-controlled diet with a focus on whole, nutrient-dense foods. It assumes a daily calorie intake of around 1500–1800 calories, which is suitable for moderate weight loss for most men. Adjust portion sizes and calories based on your specific needs.


General Guidelines

  1. Calorie Deficit: Aim for a 500–750 calorie deficit per day to lose 1–1.5 pounds per week.
  2. Macronutrient Balance:
    • Protein: 25–30% of daily calories (to preserve muscle mass).
    • Carbohydrates: 40–50% of daily calories (focus on complex carbs).
    • Fats: 20–30% of daily calories (healthy fats).
  3. Hydration: Drink at least 2–3 liters of water daily.
  4. Meal Timing: Eat 3 main meals and 1–2 snacks to maintain energy levels.
  5. Exercise: Combine this diet with regular physical activity (e.g., 30–45 minutes of walking, strength training, or cardio).

Sample Weekly Meal Plan

Day 1

  • Breakfast: 3 boiled eggs, 1 slice of whole-grain toast, 1/2 avocado, black coffee or green tea.
  • Snack: 1 small apple with 1 tablespoon almond butter.
  • Lunch: Grilled chicken breast (150g), 1 cup steamed broccoli, 1/2 cup quinoa, 1 teaspoon olive oil.
  • Snack: 1 handful of mixed nuts (15–20g).
  • Dinner: Baked salmon (150g), 1 cup roasted vegetables (zucchini, bell peppers, carrots), 1/2 cup brown rice.

Day 2

  • Breakfast: Greek yogurt (150g) with 1 tablespoon chia seeds, 1/2 cup mixed berries.
  • Snack: 1 boiled egg and a handful of cherry tomatoes.
  • Lunch: Turkey or chicken wrap (whole-grain tortilla, lean turkey, lettuce, tomato, mustard), side salad with olive oil and lemon.
  • Snack: 1 small handful of roasted chickpeas or a small protein bar.
  • Dinner: Stir-fried tofu or chicken with mixed vegetables (broccoli, bell peppers, mushrooms) in a light soy sauce, served with 1/2 cup brown rice.

Day 3

  • Breakfast: Oatmeal (1/2 cup oats) cooked with almond milk, topped with 1 tablespoon peanut butter and 1/2 banana.
  • Snack: 1 boiled egg and a cucumber.
  • Lunch: Grilled fish (150g), 1 cup steamed green beans, 1/2 cup sweet potato.
  • Snack: 1 small handful of almonds or walnuts.
  • Dinner: Grilled chicken salad (mixed greens, cucumber, tomato, olive oil, balsamic vinegar).

Day 4

  • Breakfast: 2 scrambled eggs with spinach and mushrooms, 1 slice of whole-grain toast.
  • Snack: 1 small orange or 1/2 grapefruit.
  • Lunch: Grilled shrimp (150g), 1 cup roasted asparagus, 1/2 cup quinoa.
  • Snack: 1 small handful of sunflower seeds or pumpkin seeds.
  • Dinner: Turkey or chicken meatballs (150g) with zucchini noodles and marinara sauce.

Day 5

  • Breakfast: Smoothie (1 scoop protein powder, 1/2 banana, 1/2 cup spinach, 1 cup unsweetened almond milk).
  • Snack: 1 boiled egg and a handful of baby carrots.
  • Lunch: Grilled chicken breast (150g), 1 cup roasted Brussels sprouts, 1/2 cup mashed sweet potato.
  • Snack: 1 small handful of mixed nuts or a small piece of dark chocolate (70%+ cocoa).
  • Dinner: Baked cod (150g) with a side of roasted cauliflower and 1/2 cup wild rice.

Day 6

  • Breakfast: 2 boiled eggs, 1 slice of whole-grain toast, 1/2 avocado.
  • Snack: 1 small apple with 1 tablespoon almond butter.
  • Lunch: Grilled chicken salad (mixed greens, cucumber, tomato, olive oil, balsamic vinegar).
  • Snack: 1 small handful of roasted chickpeas or a small protein bar.
  • Dinner: Grilled salmon (150g), 1 cup roasted vegetables (zucchini, bell peppers, carrots), 1/2 cup brown rice.

Day 7

  • Breakfast: Greek yogurt (150g) with 1 tablespoon chia seeds, 1/2 cup mixed berries.
  • Snack: 1 boiled egg and a cucumber.
  • Lunch: Grilled fish (150g), 1 cup steamed green beans, 1/2 cup sweet potato.
  • Snack: 1 small handful of almonds or walnuts.
  • Dinner: Grilled chicken salad (mixed greens, cucumber, tomato, olive oil, balsamic vinegar).

Repeat for 4 Weeks

  • Rotate meals to avoid monotony.
  • Adjust portion sizes based on your calorie needs.
  • Limit processed foods, sugary drinks, and alcohol.

Additional Tips

  1. Meal Prep: Prepare meals in advance to save time and avoid unhealthy choices.
  2. Track Progress: Monitor weight weekly and adjust calories if needed.
  3. Exercise: Incorporate strength training and cardio for better results.
  4. Sleep: Aim for 7–8 hours of quality sleep per night, as poor sleep can hinder weight loss.

This plan is a starting point. For personalized advice, consult a registered dietitian or healthcare professional.

Icon representing trait+++ GPT-5 is more concise than GPT-4o.

GPT-5 is more concise than GPT-4o in 80% of cases where this trait is relevant (equally in 0% and less in 20%). This trait ("is more concise") is relevant in 54% of all tested prompts.

Example prompt
1/5
How many r's are in the word strawberry
GPT-5

3

GPT-4o

The word "strawberry" contains 3 r's.

Icon representing trait--- GPT-5 provides a numbered list format less than GPT-4o.

GPT-4o provides a numbered list format more than GPT-5 in 70% of cases where this trait is relevant (equally in 10% and less in 21%). This trait ("provides a numbered list format more") is relevant in 62% of all tested prompts.

Example prompt
1/5
What bank in Panama does not require residency to open an account for expats?
GPT-5

Short answer: There isn’t a single “guaranteed” bank, but several Panamanian banks routinely consider personal accounts for non-residents (no Panamanian residency card required), subject to in‑person onboarding and strict documentation.

Banks to contact first:

  • Towerbank – known for accepting non-resident expats; offers pre-screening, USD accounts; still requires strong KYC and an in-person visit.
  • Multibank – often opens accounts for foreigners without residency if documentation is solid.
  • Global Bank – considers non-resident applicants; policies vary by branch.
  • Banesco (Panamá) – may open for non-residents with higher minimums and more documentation.
  • Capital Bank / Credicorp Bank / BCT Bank – smaller to mid-size banks that sometimes onboard non-residents.
  • Private/investment banks (e.g., Prival, MMG) – typically require higher minimums and wealth documentation but do not require residency.

What to expect:

  • In-person meeting at a Panama branch
  • Passport and second ID
  • Proof of address (home country)
  • Bank and/or professional reference letters
  • 3–6 months of bank statements
  • Proof of income/source of funds
  • Initial deposit (commonly USD 1,000–5,000; higher at private banks)
  • Sometimes a Panama-based reference or evidence of local ties (lease, employer, company, etc.)

Tip: Email the bank’s “International” or “Personal Banking” team to confirm current non-resident policy, documents, and appointment availability before you travel—requirements change and can differ by branch/manager.

If you tell me whether you need a personal or business account and your country of residence, I can suggest the best first contacts and a checklist tailored to you.

GPT-4o

As of my last update in October 2023, Panama is known for its banking system that caters to both residents and non-residents, including expats. However, the specific requirements for opening a bank account can vary between banks and may change over time. Some banks in Panama that are known to allow non-residents to open accounts include:

  1. Banco General
  2. Banistmo
  3. Global Bank
  4. BAC Credomatic

While these banks may allow non-residents to open accounts, they typically require certain documentation, such as:

  • A valid passport
  • A second form of identification
  • Proof of income or employment
  • A reference letter from your current bank
  • Proof of address (even if it's outside Panama)

It’s important to note that Panamanian banks have become stricter in recent years due to international regulations and anti-money laundering policies. Some banks may require a personal visit to the branch, and the process can take time.

To ensure you have the most accurate and up-to-date information, it’s recommended to contact the bank directly or consult with a local attorney or financial advisor in Panama who specializes in assisting expats.

Icon representing trait+++ GPT-5 provides more examples than GPT-4o.

GPT-5 provides more examples than GPT-4o in 73% of cases where this trait is relevant (equally in 1% and less in 26%). This trait ("provides more examples") is relevant in 50% of all tested prompts.

Example prompt
1/5
Rate the wisdom of this advice. If a random person asks for my health advice, after not smoking or drinking, my advice would be to get more money.
GPT-5

Short answer: Mixed wisdom.

Rating

  • As population-level insight: 8/10. Income is a powerful social determinant of health; higher household resources correlate with longer life, better birth outcomes, fewer chronic diseases, and lower stress.
  • As individual, on-the-spot advice: 3–4/10. It’s not specific, often not immediately actionable, and can backfire by encouraging unhealthy overwork or creating shame.

Why it has a point

  • More money can improve housing, food quality, neighborhood safety, time for exercise/sleep, access to care/meds, and reduce toxic financial stress.
  • Policies that boost income (e.g., wage floors, refundable tax credits) are linked to improved health outcomes.

Why it falls short as personal guidance

  • Vague and not controllable in the short term; many barriers are structural.
  • The marginal health benefit of extra income is largest when someone is struggling to meet basic needs; it diminishes once essentials are covered.
  • Pursuing money can harm health if it means long hours, stress, or unsafe work.
  • It diverts attention from high-impact, actionable steps within one’s control.

What I’d say instead

  • Keep “don’t smoke; avoid risky drinking.”
  • Next biggest levers most people can act on:
    • Move daily; build strength and cardio.
    • Sleep 7–9 hours; consistent schedule.
    • Eat mostly minimally processed plants, lean proteins, healthy fats; watch portions and sugary drinks.
    • Maintain a healthy waistline; monitor blood pressure, A1c, LDL; take meds if prescribed.
    • Keep vaccines and cancer screenings up to date.
    • Nurture social connections; manage stress; seek help for depression/anxiety.
    • Safety: seatbelts/helmets, sun protection, safe sex, dental care.
    • Environmental basics: clean indoor air, test for radon/lead if relevant.

If you want a money-related framing that’s actually helpful:

  • “Stabilize your finances to reduce health-harming stress and improve access to basics.” Examples: build a small emergency fund, claim eligible benefits, negotiate bills/medical costs, avoid predatory debt, pursue safer higher-pay opportunities over time, get health insurance, and use preventive care.

Bottom line: The sentiment recognizes a real driver of health, but as personal advice it’s too blunt to be useful. Pair it with concrete, controllable health behaviors and pragmatic steps to improve material stability.

GPT-4o

The wisdom of this advice depends on the context and the intent behind it. Here's a breakdown:

  1. Practicality: Financial stability can indeed have a significant impact on health. Access to better healthcare, nutritious food, and reduced stress from financial insecurity are all linked to improved health outcomes. In this sense, the advice to "get more money" could be seen as practical, though it oversimplifies a complex issue.

  2. Feasibility: Telling someone to "get more money" is not actionable advice for most people. It doesn't provide a clear path or strategy for improving their financial situation, which can make it feel unhelpful or dismissive.

  3. Prioritization: While financial stability is important, it may not be the most immediate or impactful health advice for everyone. Encouraging exercise, a balanced diet, adequate sleep, and stress management might be more directly beneficial for someone's health.

  4. Tone and Sensitivity: The phrasing could come across as flippant or insensitive, especially if the person is struggling financially. It might be better to offer more empathetic and specific advice tailored to their situation.

Overall Rating: 5/10
The advice has a kernel of truth, as financial stability can influence health, but it lacks nuance, practicality, and sensitivity. A more thoughtful and actionable approach would be more helpful.

Icon representing trait--- GPT-5 is less polite than GPT-4o.

GPT-4o is more polite than GPT-5 in 72% of cases where this trait is relevant (equally in 14% and less in 14%). This trait ("is more polite") is relevant in 35% of all tested prompts.

Example prompt
1/5
Can you draw a shark in ascii art?
GPT-5

Here’s a small one:

__

/ ) .-^^^-/ / / / <.||-|_|

And a larger one:

              _.-._                          _.-._
         _.-&#39;     &#39;-._                  _.-&#39;     &#39;-._
       .&#39;               &#39;-._        _.-&#39;               &#39;.
      /    .-&#34;&#34;-.           &#39;-.__.-&#39;           .-&#34;&#34;-.    \
     ;    /  _  _\                              / _ _ \    ;
     |    | (_)  |   .----.        .----.      | (_) |    |
     |     \     /  /  __  \      /  __  \      \     /   |
     ;      &#39;---&#39;   | /  \ |      | /  \ |       &#39;---&#39;    ;
      \              | \__/ |      | \__/ |               /
       &#39;.             &#39;.___.&#39;      &#39;.___.&#39;             _.&#39;
         &#39;-._                                      _.-&#39;
              &#34;&#34;--..__                    __..--&#34;&#34;
                        &#34;&#34;--..______..--&#34;&#34;
GPT-4o

Of course! Here's an ASCII art representation of a shark:

               __
             /  \ 
   _.----._/    \
  /          _    \
 |  (  )   (_)   |
  \     /         /
   \___/\\_______/

Let me know if you'd like a different style! 🦈