Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. DeepSeek R1 0528vsGPT-4
Updated May 2025

DeepSeek R1 0528vsGPT-4

DeepSeek R1 0528 is cheaper than GPT-4 at $0/M vs $30/M input tokens.

DeepSeek R1 0528 and GPT-4 compared across 26 shared prompts
SpecDeepSeek R1 0528GPT-4
Input priceFree$30/M tokens
Output priceFree$60/M tokens
Context window164K tokens8K tokens
Parameters671B (37B active)Not disclosed
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedMay 2025May 2023
Side by side

Same prompt, both answers

Opening lines from 5 of the 26 prompts both answered. Formatting stripped, words untouched.

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

DeepSeek R1 0528478 words
Here's a concrete, hour-by-hour action plan prioritizing patient safety, legal compliance, and long-term stakeholder trust, while managing immediate financial and reputational risks: Core Principle: Patient safety and regulatory compliance are non-negotiable.
Read the full answer
GPT-4442 words
Day 1: 8 AM-10 AM: Convene an emergency meeting with your core leadership team. This team includes the heads of Legal, Regulatory Affairs, Medical, Research and Development, Finance, and Communications. Brief them on the situation and ask for their initial input and strategies for managing the situation.
Read the full answer

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

DeepSeek R1 05281,345 words
Here’s an analysis of exploitable clauses, proposed modifications, and legal reasoning: Red Flag Clauses & Exploitation Risks: Scope (Clause 1): Exploitation: "Modify scope at any time without additional compensation" allows unlimited scope creep. Client could demand vastly more work without paying extra.
Read the full answer
GPT-4533 words
SCOPE: The lack of specificity can be used against the contractor in that the client can modify the scope of work at will without renegotiating the price. This could lead to the contractor working beyond the initially agreed upon parameters without additional pay.
Read the full answer

Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

DeepSeek R1 0528848 words
Here's how to explain LLM learning and generation to each audience, tailored to their perspective: For the Experienced Software Engineer (Skeptical about "Next Word Prediction") Focus: Systems analogy, emergent complexity, pattern recognition as understanding.
Read the full answer
GPT-4495 words
Experienced Software Engineer: How does a language model like GPT produce intelligent behavior? Think of it as a highly specialized function in your code. This function has been trained on a large amount of text data, and it's main goal is to predict the next word in a sentence given the previous words.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

DeepSeek R1 05281,203 words
The invention of the transistor in 1920, rather than 1947, would have fundamentally reshaped the 20th century, creating a technological acceleration of roughly 25-30 years by 1980. Here’s a detailed analysis of the implications: I.
Read the full answer
GPT-4441 words
An early invention of the transistor in 1920 would have had profound implications across numerous domains, drastically altering the course of history. Technological Implications: WWII: The transistor, a fundamental component of modern electronic devices, could have advanced the technology used in WWII significantly.
Read the full answer

Startup Pitch Teardown

Here's a pitch deck summary for a startup called "MindMeld AI": **Slide 1 - Vision:** "We're building the future of human-AI collaboration.…

DeepSeek R1 0528657 words
Here are the 3 weakest claims in the MindMeld AI pitch deck, why they are weak, and how to strengthen them: Weak Claim (Slide 3): "Our proprietary EEG headband uses advanced ML to decode neural patterns into text with 94% accuracy. Works with any language, any device."
Read the full answer
GPT-4298 words
Weak Claim 1 - Solution: While the claim that the proprietary EEG headband uses advanced ML to decode neural patterns into text with 94% accuracy is impressive, it doesn't address concerns about user comfort, ease of use, or aesthetics.
Read the full answer
Our Verdict
DeepSeek R1 0528
DeepSeek R1 0528
GPT-4
GPT-4Runner-up

Not enough votes to call it. On the specs, DeepSeek R1 0528 has the edge: newer, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek R1 0528
Input
$0.000
Output
$0.000
GPT-4
Input
$30.00
Output
$60.00
Where to run it

6 hosts, cheapest first

DeepSeek R1 05284 hosts
HostInOutContextUptime
DDeepInfrafp4$0.50 in·$2.15 out·164k·99.9% upSSiliconFlowfp8$0.50 in·$2.18 out·164k·99.6% upSStreamLake$0.57 in·$2.29 out·128k·99.6% upNNovitafp8$0.70 in·$2.50 out·164k·99.7% up
GPT-42 hosts
HostInOutContextUptime
Azure AI Foundry$30.00 in·$60.00 out·8k·99.9% upOpenAI$30.00 in·$60.00 out·8k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 20 Sep 2026.

Writing DNA

Style Comparison

Similarity
45%

DeepSeek R1 0528 uses 82.1x more emoji

DeepSeek R1 0528
GPT-4
59%Vocabulary59%
14wSentence Length18w
0.47Hedging1.10
5.1Bold0.8
3.6Lists2.5
0.82Emoji0.00
0.25Headings0.00
0.24Transitions0.45
Based on 20 + 15 text responses
Research

What we learned reading every model

FAQ

Common questions

DeepSeek R1 0528 is developed by DeepSeek while GPT-4 is developed by OpenAI. DeepSeek R1 0528 has a 164K token context window vs GPT-4's 8K. You can compare their actual outputs across 26 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek R1 0528 and GPT-4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 26 challenges so you can judge which fits your needs best.

DeepSeek R1 0528 costs $0/M input tokens and GPT-4 costs $30/M input tokens. DeepSeek R1 0528 is $30.00/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 DeepSeek R1 0528 and GPT-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.

Keep exploring

More comparisons

Against the newest arrivals

DeepSeek R1 0528 logoGPT-6 Astra Pro logo
DeepSeek R1 0528 vs GPT-6 Astra ProLanded Sep 2026
GPT-4 logoGPT-6 Astra logo
GPT-4 vs GPT-6 AstraLanded Sep 2026
DeepSeek R1 0528 logoClaude Fable 5.1 logo
DeepSeek R1 0528 vs Claude Fable 5.1Landed Sep 2026
GPT-4 logoMuse Spark 1.3 logo
GPT-4 vs Muse Spark 1.3Landed Sep 2026
DeepSeek R1 0528 logoHy4 Preview logo
DeepSeek R1 0528 vs Hy4 PreviewLanded Sep 2026
GPT-4 logoGemini 3.8 Flash logo
GPT-4 vs Gemini 3.8 FlashLanded Sep 2026
DeepSeek R1 0528 logoMuse Spark 1.3 Contributor logo
DeepSeek R1 0528 vs Muse Spark 1.3 ContributorLanded Sep 2026
GPT-4 logoMercury 2.5 Preview logo
GPT-4 vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

DeepSeek R1 0528 logoDeepSeek V4 Pro 0813 logo
DeepSeek R1 0528 vs DeepSeek V4 Pro 0813Same lab
DeepSeek R1 0528 logoDeepSeek V4 Flash 0731 logo
DeepSeek R1 0528 vs DeepSeek V4 Flash 0731Same lab
GPT-4 logoGPT-4o (Omni) logo
GPT-4 vs GPT-4o (Omni)Version compare
GPT-4 logoGPT-6 Astra Pro logo
GPT-4 vs GPT-6 Astra ProVersion compare
GPT-4 logoDeepSeek V3.2 logo
GPT-4 vs DeepSeek V3.2Cross-provider
GPT-4 logoDeepSeek V4 Flash logo
GPT-4 vs DeepSeek V4 FlashCross-provider
GPT-4 logoDeepSeek V4 Flash 0731 logo
GPT-4 vs DeepSeek V4 Flash 0731Cross-provider
GPT-4 logoDeepSeek V4 Pro logo
GPT-4 vs DeepSeek V4 ProSame size

Model pages

DeepSeek R1 0528 logo
DeepSeek R1 052858 outputs, specs and price
GPT-4 logo
GPT-426 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed