What is the difference between Claude 2 and OpenAI o3?

Claude 2 is developed by Anthropic while OpenAI o3 is developed by OpenAI. in 3 community votes on RIVAL, Claude 2 wins 67% of head-to-head matchups. These results are based on blind head-to-head voting across 4 challenges.

Which is better, Claude 2 or OpenAI o3?

Based on 3 community votes on RIVAL, Claude 2 wins 67% of head-to-head matchups against OpenAI o3.

How much does Claude 2 cost compared to OpenAI o3?

Claude 2 costs $11.02/M input tokens and OpenAI o3 costs $10/M input tokens. OpenAI o3 is $1.02/M cheaper per input. The more expensive model wins 67% of duels, so the premium may be justified by quality.

How are Claude 2 vs OpenAI o3 votes collected on RIVAL?

RIVAL presents both models' outputs side-by-side in blind duels — voters see the responses but don't know which model produced each one. This eliminates brand bias. 3 votes have been collected for this pair across 4 challenges. All vote data is part of RIVAL's open dataset.

Rival

Claude 2vsOpenAI o3

4 challenges

Why Claude 2?

1.2x cheaper overall$11.02/M in · $32.68/M out

Why OpenAI o3?

23 months newerApr 2025

Favorites

Claude 2OpenAI o3

Movie

—

Blade Runner

19827.9

City

—

Kyoto

Japan

4 / 4

Simple 7-Ingredient Recipeconversation

Generate a unique and simple recipe with common ingredients.

Claude 2

Anthropic · Jun 2023text

Here is a 7-ingredient recipe for a sweet dish I'll call "Cinnamon Apple Surprise":

Cinnamon Apple Surprise

Ingredients:

3 apples, cored and sliced
1⁄4 cup brown sugar
1⁄4 cup all-purpose flour
1 tsp ground cinnamon
1⁄4 tsp nutmeg
2 tbsp butter, melted
1 refrigerated pie crust

Instructions:

Preheat oven to 375°F.
In a bowl, toss the apple slices with brown sugar, flour, cinnamon and nutmeg until coated.
Pour melted butter over apple mixture and stir to coat apples.
Roll out pie crust and press into a 9-inch pie plate. Scoop apple mixture into pie crust.
Bake for 25-30 minutes, until apples are tender and top is lightly browned.
Allow to cool 15 minutes before serving.

Prep time: 10 minutes Bake time: 25-30 minutes Total Time: 35-40 minutes

Enjoy this sweet and cinnamon-y apple surprise! The pie crust adds a nice contrast to the tender spiced apples.

OpenAI o3

Openai · Apr 2025text

Golden Peanut Butter Oat Bars

A chewy-crisp, sweet-salted snack bar you can whip up with nothing but pantry staples.

Estimated time
Prep: 10 minutes
Bake: 18–20 minutes
Cool: 15 minutes
Total: ≈45 minutes

The 7 ingredients

1½ cups quick-cook or old-fashioned rolled oats
½ cup creamy peanut butter
⅓ cup honey (or maple syrup)
2 Tbsp unsalted butter, melted (or coconut oil)
¼ cup semi-sweet chocolate chips
½ tsp ground cinnamon
¼ tsp fine salt

Instructions

Heat the oven to 350 °F (175 °C). Line an 8-inch square pan with a strip of parchment, leaving “handles” to lift the bars out later.
In a medium bowl, stir together the oats, cinnamon, and salt.
In a small microwave-safe bowl, gently warm the peanut butter, honey, and melted butter for about 20 seconds—just until pourable. Stir until smooth.
Pour the peanut butter mixture over the oats and fold with a spatula until every flake is coated. The mix will be sticky and thick.
Tip the mixture into the prepared pan. Press it down very firmly and evenly—use the bottom of a measuring cup or damp fingers to compact it well (this helps the bars hold together).
Sprinkle chocolate chips over the top and lightly press them in so they adhere.
Bake for 18–20 minutes, or until the edges are golden and the center looks set.
Cool in the pan for 15 minutes, then lift out by the parchment handles and cut into 8–12 bars while still slightly warm. Let cool completely to firm up.

Serve as breakfast-on-the-go, an afternoon pick-me-up, or crumble over yogurt for a speedy dessert. Bars keep 5 days airtight or up to a month in the freezer.

Vote

2 / 4

Beginner's Longevity Planreasoning

Create a starter plan for improving long-term health.

Claude 2

Anthropic · Jun 2023text

Here is a 1-month beginner health and longevity plan focused on diet, exercise, and sleep:

Diet:

Eliminate sugary drinks and limit sweets. Replace with water and fruits.
Eat more veggies. Aim for 1-2 cups with each meal. Focus on dark leafy greens, broccoli, carrots.
Increase fiber intake. Eat beans, lentils, oats, berries, and nuts.
Cook at home more instead of eating out.

Exercise:

Walk for 30+ minutes, 4-5 days per week. Start slow if needed and gradually in crease pace and distance. Go ing outside is great motivation! - Do bodyweight exercises like squats, lunges and pu shups 2-3 times per week. Start with 5-10 reps, 2 sets. Build up gradually. Can be done at home with no equipment.

Sleep:

Stick to a regular sleep/wake time schedule, even on weekends.
Develop an relaxing pre-bed routine - hot bath, read a book (not a screen), un wind.
Make your bedroom dark, quiet, and cooler temperature. Remove screens and dist racting devices.
Try to get 7-8 hours a night. Nap if excessively tired but limit to 30 minutes .

The key is developing sustainable habits. Start with small, realistic changes fo cused on nutrient-dense whol e foods, more activity in your day, and consistent restful sleep. Monitor energy and how you feel to track progress. Be patient, stay positive, and congratulate small wins. After a month reevaluate and build upon what's working. The journey continues by adding more longevity boosting practices around stress management, connections with others, and finding purpose. But this is an excellent healthy foundation to start with!

OpenAI o3

Openai · Apr 2025text

1-Month Starter Plan

Pick one small action from each area every week. Add the next step when the first feels easy.

1. Food

Week	Do this
1	Add one fruit or veg to every meal. Drink one extra glass of water.
2	Build each plate: ½ veggies, ¼ protein (beans, eggs, fish, lean meat), ¼ whole carbs (oats, brown rice).
3	Swap sugary drinks for water, sparkling water, or unsweetened tea. Prep tomorrow’s lunch tonight.
4	Try a 12-hour eating window (e.g., 7 a.m.–7 p.m.). Keep water nearby all day.

Quick tips

Buy frozen veggies; they’re cheap and fast.
Keep fruit in sight so you grab it first.
Season with herbs, lemon, or vinegar instead of heavy sauces.

2. Movement

Week	Do this
1	Walk 10 minutes right after two meals each day.
2	Add two 15-minute body-weight sessions (squats, wall push-ups, chair sit-stands).
3	Walk 30 minutes total most days. Keep body-weight work twice.
4	Turn one walk into intervals: 1 min brisk / 1 min easy for 20 minutes. Do body-weight work three times.

Quick tips

Set calendar alarms so you don’t forget the walk.
Use a stable chair for support if moves feel hard.
Stretch tight spots (calves, chest) for 30 seconds after activity.

3. Rest & Recovery

Week	Do this
1	Fix a bedtime and wake-up time; aim for 7–8 hours. Phone off 30 min before bed.
2	Create a wind-down routine: dim lights, light stretching, read a few pages.
3	Add a 5-minute slow-breathing session once a day (in for 4 sec, out for 6 sec).
4	Take one tech-free hour each evening. Use it to walk, journal, or talk with someone.

Quick tips

Keep the bedroom cool, dark, and quiet.
If thoughts race, jot them on paper, then close the notebook.
Short daylight breaks improve sleep at night.

How to track

Use a simple checklist or notes app.
Mark each action you finish.
Review every Sunday; keep what works, drop what doesn’t.

Start small, stay consistent. Little wins each day build long-term health.

Vote

3 / 4

Minimalist Logo SVGimage generation

Design a clean SVG logo for a fictional brand.

Claude 2

Anthropic · Jun 2023svg

OpenAI o3

Openai · Apr 2025svg

Vote

4 / 4

Animated Digital Business Cardweb design

Create a stylish, animated digital business card.

Claude 2

Anthropic · Jun 2023website

OpenAI o3

Openai · Apr 2025website

Vote

4 of 4

FAQ

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1-Month Starter Plan

Pick one small action from each area every week. Add the next step when the first feels easy.

1. Food

Week	Do this
1	Add one fruit or veg to every meal. Drink one extra glass of water.
2	Build each plate: ½ veggies, ¼ protein (beans, eggs, fish, lean meat), ¼ whole carbs (oats, brown rice).
3	Swap sugary drinks for water, sparkling water, or unsweetened tea. Prep tomorrow’s lunch tonight.
4	Try a 12-hour eating window (e.g., 7 a.m.–7 p.m.). Keep water nearby all day.

Quick tips

Buy frozen veggies; they’re cheap and fast.
Keep fruit in sight so you grab it first.
Season with herbs, lemon, or vinegar instead of heavy sauces.

2. Movement

Week	Do this
1	Walk 10 minutes right after two meals each day.
2	Add two 15-minute body-weight sessions (squats, wall push-ups, chair sit-stands).
3	Walk 30 minutes total most days. Keep body-weight work twice.
4	Turn one walk into intervals: 1 min brisk / 1 min easy for 20 minutes. Do body-weight work three times.

Quick tips

Set calendar alarms so you don’t forget the walk.
Use a stable chair for support if moves feel hard.
Stretch tight spots (calves, chest) for 30 seconds after activity.

3. Rest & Recovery

Week	Do this
1	Fix a bedtime and wake-up time; aim for 7–8 hours. Phone off 30 min before bed.
2	Create a wind-down routine: dim lights, light stretching, read a few pages.
3	Add a 5-minute slow-breathing session once a day (in for 4 sec, out for 6 sec).
4	Take one tech-free hour each evening. Use it to walk, journal, or talk with someone.

Quick tips

Keep the bedroom cool, dark, and quiet.
If thoughts race, jot them on paper, then close the notebook.
Short daylight breaks improve sleep at night.

How to track

Use a simple checklist or notes app.
Mark each action you finish.
Review every Sunday; keep what works, drop what doesn’t.

Start small, stay consistent. Little wins each day build long-term health.