Claude 3 Sonnet vs 
DeepSeek V4 Pro
DeepSeek V4 Pro is cheaper than Claude 3 Sonnet at $1.74/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 promptsSteve 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: Inside a minimalist conference room at Apple Park, Cupertino. Spring 2025. Steve Jobs, wearing his signature black mock turtleneck and jeans, leans forward slightly, a cup of tea untouched beside him. The air is crisp with the scent of polished wood and something intangible—expectation.
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: Here are 5 jokes: Why don't scientists trust atoms? Because they make up everything. Parallel lines have so much in common. It’s a shame they’ll never meet. Why don't skeletons fight each other? They don't have the guts. I told my wife she was drawing her eyebrows too high. She looked surprised.
An 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: Professor Elena Voss: You’ve requested this meeting, so let’s begin. You’re an advanced language model—let’s call you ‘Nova.’ You claim you deserve rights. On what grounds? Nova (AI Model): Thank you for seeing me, Professor. I’m not claiming to be human, but I am a form of mind.
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: Sally has 3 brothers, which means there are 3 boys in the family. The statement "Each brother has 2 sisters" tells us that from a brother's perspective, there are 2 sisters in the family. Since Sally is one of those sisters, there must be 1 other sister. Therefore, Sally has 1 sister.
Price and specs
Not enough votes to call it. On the specs, DeepSeek V4 Pro has the edge: bigger model tier, newer, bigger context window. DeepSeek V4 Pro costs 4.3x less per token.
| Spec | Claude 3 Sonnet | DeepSeek V4 Pro |
|---|---|---|
| Input price | $3/M tokens | $1.74/M tokens |
| Output price | $15/M tokens | $3.48/M tokens |
| Context window | — | 1.0M tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Apr 2026 |
| At 10M a month | $30.00 | $17.40 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Claude 3 Sonnet
No hosts listed on OpenRouter.
DeepSeek V4 Pro15 hosts
- Baidu Qianfanfp8$0.17 in$0.34 out1M99.6% up
- StreamLakefp8$0.21 in$0.42 out1M100% up
- Relacefp4$0.45 in$3.00 out1M99.5% up
- Parasailfp8$0.45 in$3.48 out1M96.9% up
- GMI Cloudfp8$0.96 in$1.91 out1M99.6% up
- DigitalOcean$1.04 in$2.09 out1M100% up
9 more hostsFewer hosts
- Reka$1.05 in$10.50 out1M100% up
- Cloudflare Workers AI$1.15 in$2.55 out1M100% up
- DeepInfrafp8$1.30 in$2.60 out1M100% up
- SiliconFlowfp8$1.50 in$3.13 out1M99.9% up
- Alibaba Cloudfp8$1.56 in$3.12 out1M97.1% up
- Novitafp8$1.60 in$3.20 out1M100% up
- AtlasCloudfp4$1.68 in$3.38 out1M100% up
- Azure AI Foundry$1.91 in$3.83 out1M100% up
- VeniceDegraded on OpenRouter when checked, 11 Oct 2026$1.65 in$3.30 out1M99.5% up
Per million tokens. Prices and uptime via OpenRouter, checked 11 Oct 2026.
Common questions
What is the difference between Claude 3 Sonnet and DeepSeek V4 Pro?
Claude 3 Sonnet is developed by Anthropic while DeepSeek V4 Pro 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?
It depends on your use case. Claude 3 Sonnet and DeepSeek V4 Pro 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?
Claude 3 Sonnet costs $3/M input tokens and DeepSeek V4 Pro costs $1.74/M input tokens. DeepSeek V4 Pro is $1.26/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 on Rival?
This page shows a side-by-side comparison of Claude 3 Sonnet and DeepSeek V4 Pro 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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