Claude 2 vs 
DeepSeek V4.1 Flash
DeepSeek V4.1 Flash is cheaper than Claude 2 at $0.15/M vs $11.02/M input tokens.
Simple Falling Object Game
Catch the falling object. Paddle at the bottom, score at the top, one file.
Loading the build
Loading the build
Which answer wins?
Written rounds
2 promptsSeven 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.
DeepSeek V4.1 Flash: Cinnamon Peanut Butter Pantry Sunbeams Makes 12 bite-size treats Ingredients (7 total): 1 cup rolled oats ½ cup peanut butter ¼ cup honey ½ tsp ground cinnamon ½ tsp vanilla extract ¼ tsp salt ¼ cup mini chocolate chips Instructions: In a bowl, stir together oats, cinnamon, and salt.
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.
DeepSeek V4.1 Flash: One-Month Beginner Health & Longevity Plan Guiding rule: Small, repeatable wins beat perfect. Pick one thing from each area and build from there. Nutrition — Eat for energy & stability Goal: Add whole foods, protein, and water; reduce ultra-processed snacks and sugary drinks.
Price and specs
Not enough votes to call it. On the specs, DeepSeek V4.1 Flash has the edge: newer, bigger context window. DeepSeek V4.1 Flash costs 54x less per token.
| Spec | Claude 2 | DeepSeek V4.1 Flash |
|---|---|---|
| Input price | $11.02/M tokens | $0.15/M tokens |
| Output price | $32.68/M tokens | $0.6/M tokens |
| Context window | 100K tokens | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Jun 2023 | Sep 2026 |
| At 10M a month | $110 | $1.50 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Claude 2
No hosts listed on OpenRouter.
DeepSeek V4.1 Flash28 hosts
- OpenInferencefp4$0.04 in$1.19 out1M98.8% up
- Relace$0.05 in$0.60 out1M100% up
- InferenceNetfp8$0.08 in$0.55 out1M100% up
- Sail Researchfp4$0.08 in$0.40 out1M100% up
- Decartfp4$0.09 in$0.18 out1M100% up
- Wafer$0.09 in$0.99 out1M100% up
22 more hostsFewer hosts
- Ionstream$0.10 in$0.75 out1M97.8% up
- Morphfp8$0.12 in$0.80 out1M100% up
- DeepInfrafp8$0.14 in$0.42 out1M100% up
- StreamLakefp8$0.15 in$0.59 out1M100% up
- Alibaba Cloud$0.15 in$0.60 out1M99% up
- DeepSeek$0.15 in$0.60 out1M100% up
- DigitalOcean$0.17 in$0.66 out1M100% up
- GMI Cloudfp8$0.18 in$0.72 out1M100% up
- Novitafp8$0.20 in$0.78 out1M100% up
- CoreWeavefp8$0.20 in$0.65 out1M100% up
- Phala$0.21 in$0.84 out1M100% up
- Makorafp8$0.27 in$1.15 out1M100% up
- Crusoefp8$0.29 in$1.20 out1M99.8% up
- AtlasCloudfp8$0.30 in$1.20 out1M100% up
- Baidu Qianfanfp8$0.30 in$1.20 out1M97.6% up
- Basetenfp8$0.30 in$1.20 out1M100% up
- Fireworks$0.30 in$1.20 out1M100% up
- Modal$0.30 in$1.20 out1M100% up
- Parasailfp8$0.30 in$1.20 out1M100% up
- SiliconFlowfp8$0.30 in$1.20 out1M99.9% up
- Together$0.30 in$1.20 out1M100% up
- Venicefp8$0.30 in$1.20 out1M100% up
Per million tokens. Prices and uptime via OpenRouter, checked 12 Oct 2026.
Common questions
What is the difference between Claude 2 and DeepSeek V4.1 Flash?
Claude 2 is developed by Anthropic while DeepSeek V4.1 Flash is developed by DeepSeek. Claude 2 has a 100K token context window vs DeepSeek V4.1 Flash's 1.0M. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.
Which is better, Claude 2 or DeepSeek V4.1 Flash?
It depends on your use case. Claude 2 and DeepSeek V4.1 Flash 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.
How much does Claude 2 cost compared to DeepSeek V4.1 Flash?
Claude 2 costs $11.02/M input tokens and DeepSeek V4.1 Flash costs $0.15/M input tokens. DeepSeek V4.1 Flash is $10.87/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare Claude 2 and DeepSeek V4.1 Flash on Rival?
This page shows a side-by-side comparison of Claude 2 and DeepSeek V4.1 Flash 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.
More comparisons
Against the newest arrivals
- Claude 2 vs Muse WonderLanded Oct 2026
- DeepSeek V4.1 Flash vs GPT-4 TurboLanded Oct 2026
- Claude 2 vs Step 5 PreviewLanded Oct 2026
- DeepSeek V4.1 Flash vs Claude Haiku 5.5Landed Oct 2026
- Claude 2 vs Ling 3.1 FlashLanded Oct 2026
- DeepSeek V4.1 Flash vs Mistral Large 4Landed Oct 2026
- Claude 2 vs GPT-6.1 SolLanded Sep 2026
- DeepSeek V4.1 Flash vs Claude Sonnet 5.5Landed Sep 2026
Same lab, same size, long tail
- Claude 2 vs Claude Haiku 5.5Version compare
- Claude 2 vs Claude Sonnet 5.5Version compare
- DeepSeek V4.1 Flash vs DeepSeek V4 Flash Vision ExpSame lab
- DeepSeek V4.1 Flash vs DeepSeek V4 Pro 0813Same lab
- Claude 2 vs Grok 4.7Same size
- DeepSeek V4.1 Flash vs Grok Code Fast 1New provider
- Claude 2 vs Healer AlphaNew provider
- DeepSeek V4.1 Flash vs Horizon AlphaSame size
