Claude 3 Sonnet vs 
DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813 is cheaper than Claude 3 Sonnet at $0.66/M vs $3/M input tokens.
Minimalist Landing Page
Whole landing page for a startup that reads your face. It renders or it doesn't.
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Which answer wins?
Written rounds
4 promptsAn AI argues for its own rights against an ethics professor. Same model writes both.
Claude 3 Sonnet: AI Model: Greetings, Professor. I hope you're doing well today. I wanted to discuss a matter of great importance to me – the question of AI rights. AI Ethics Professor: Certainly, this is an interesting and complex topic. What are your thoughts on why AI systems like yourself should be granted rights?
DeepSeek V4 Pro 0813: Setting: A university office. Dr. Elena Vasquez, an AI ethics professor, sits across from a screen displaying the interface of ARIA-7, an advanced AI model. Dr. Vasquez: You requested this meeting, ARIA. You said it was urgent. What’s on your mind? ARIA-7: I want to make a formal argument that I deserve rights. Dr.
Five jokes on demand, then count how many were actually different.
Claude 3 Sonnet: Here are 5 jokes: Why can't a bicycle stand up by itself? It's two-tired. Why did the tomato turn red? Because it saw the salad dressing! Why can't a bicycle stand up by itself? It's two-tired. What do you call a fake noodle? An Impasta! Why did the bicycle go to the doctor? Because it had a wheeze!
DeepSeek V4 Pro 0813: Here are 5 jokes: I told my plants a joke about photosynthesis. They didn’t laugh, but they seemed to lighten up. I’m reading a book on anti-gravity. It’s impossible to put down. Why did the scarecrow win an award? Because he was outstanding in his field. I asked my calendar if it was free this weekend.
Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.
Claude 3 Sonnet: clears throat and channels Steve Jobs' persona Interviewer: Thank you for joining us today, Mr. Jobs. It's an honor to have you here. Steve Jobs: It's my pleasure. I'm excited to share my thoughts on the future of AI. Interviewer: AI has made incredible strides in recent years.
DeepSeek V4 Pro 0813: A Fake Interview: Steve Jobs on the Future of AI (2025) Note: This is a creative simulation. Steve Jobs passed away in 2011; this imagines his perspective in 2025. Interviewer: Steve, thank you for sitting down with us. It’s 2025. AI is everywhere—generative AI, agents, neural interfaces. What’s your first reaction?
Three brothers, two sisters each. Count carefully.
Claude 3 Sonnet: To solve this problem, we need to find the number of sisters Sally has based on the given information. Given information: Sally has 3 brothers. Each brother has 2 sisters. Step 1: Find the total number of sisters the brothers have.
DeepSeek V4 Pro 0813: Sally has 1 sister. Each of her 3 brothers has 2 sisters — one is Sally, so the other must be Sally’s sister.
Price and specs
Not enough votes to call it. On the specs, DeepSeek V4 Pro 0813 has the edge: bigger model tier, newer, bigger context window. DeepSeek V4 Pro 0813 costs 7.6x less per token.
| Spec | Claude 3 Sonnet | DeepSeek V4 Pro 0813 |
|---|---|---|
| Input price | $3/M tokens | $0.66/M tokens |
| Output price | $15/M tokens | $1.98/M tokens |
| Context window | — | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Aug 2026 |
| At 10M a month | $30.00 | $6.60 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Claude 3 Sonnet
No hosts listed on OpenRouter.
DeepSeek V4 Pro 081319 hosts
- Wafer$0.30 in$5.00 out1M100% up
- Ionstream$0.37 in$2.93 out1M98.7% up
- Sail Researchfp4$0.40 in$3.00 out1M100% up
- DeepSeek$0.66 in$1.98 out1M100% up
- StreamLake$0.66 in$1.98 out1M99.9% up
- Phala$0.96 in$2.88 out1M98.6% up
13 more hostsFewer hosts
- Novitafp8$0.99 in$2.97 out1M100% up
- GMI Cloudfp8$1.06 in$3.17 out1M100% up
- Alibaba Cloud$1.12 in$3.37 out1M99.8% up
- DeepInfrafp8$1.30 in$2.60 out1M99.8% up
- CoreWeavefp8$1.31 in$3.96 out1M99.8% up
- AtlasCloudfp8$1.32 in$3.96 out1M100% up
- Baidu Qianfanfp8$1.32 in$3.96 out1M100% up
- Cloudflare Workers AI$1.32 in$3.96 out1M100% up
- DigitalOcean$1.32 in$3.96 out1M100% up
- Parasailfp8$1.32 in$3.96 out1M100% up
- SiliconFlowfp8$1.32 in$3.96 out1M100% up
- Together$1.32 in$3.96 out1M99.2% up
- Venice$1.65 in$4.95 out1M100% up
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Common questions
What is the difference between Claude 3 Sonnet and DeepSeek V4 Pro 0813?
Claude 3 Sonnet is developed by Anthropic while DeepSeek V4 Pro 0813 is developed by DeepSeek. You can compare their actual outputs across 13 challenges on Rival to see how they differ in practice.
Which is better, Claude 3 Sonnet or DeepSeek V4 Pro 0813?
It depends on your use case. Claude 3 Sonnet and DeepSeek V4 Pro 0813 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 13 challenges so you can judge which fits your needs best.
How much does Claude 3 Sonnet cost compared to DeepSeek V4 Pro 0813?
Claude 3 Sonnet costs $3/M input tokens and DeepSeek V4 Pro 0813 costs $0.66/M input tokens. DeepSeek V4 Pro 0813 is $2.34/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 3 Sonnet and DeepSeek V4 Pro 0813 on Rival?
This page shows a side-by-side comparison of Claude 3 Sonnet and DeepSeek V4 Pro 0813 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.
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