Solar Pro 4 is cheaper than Claude 2 at $0.09/M vs $11.02/M input tokens.
Catch the falling object. Paddle at the bottom, score at the top, one file.
Which answer wins?
Seven pantry ingredients, one dish, and a name worth saying out loud.
Claude 2: 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.
Solar Pro 4: 🍝 Golden Umami Silk Noodles A savory-sweet pasta dish that transforms basic pantry staples into a glossy, flavorful meal. It's quick, comforting, and relies on the balance of soy, honey, and butter for a rich sauce without needing fresh produce.
One month, three habits, someone starting from nothing.
Claude 2: 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.
Solar Pro 4: Here’s a simple, progressive 1-month plan built around Diet, Exercise, and Sleep. Each week adds one small, beginner-friendly shift to each area. The goal isn’t perfection; it’s building consistent, sustainable habits that compound over time.
| Spec | ||
|---|---|---|
| Input price | $11.02/M tokens | $0.09/M tokens |
| Output price | $32.68/M tokens | $0.36/M tokens |
| Context window | 100K tokens | 524K tokens |
| Free API (OpenRouter) | No | No |
| Released | Jun 2023 | Aug 2026 |
| At 10M a month | $110 | $0.90 |
Input tokens at list price. No caching, no batch discount.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 12 Oct 2026.
Claude 2 is developed by Anthropic while Solar Pro 4 is developed by Upstage. Claude 2 has a 100K token context window vs Solar Pro 4's 524K. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.
It depends on your use case. Claude 2 and Solar Pro 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.
Claude 2 costs $11.02/M input tokens and Solar Pro 4 costs $0.09/M input tokens. Solar Pro 4 is $10.93/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
This page shows a side-by-side comparison of Claude 2 and Solar Pro 4 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.