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DeepSeek R1 vs GPT-4o

Pricing, context window, and benchmark comparison · Last updated April 2026

Quick Verdict

DeepSeek R1 is cheaper than GPT-4o at $0.55/1M/1M vs $2.50/1M/1M input tokens — a 4.5x cost difference. DeepSeek R1 scores higher on quality benchmarks (ELO 1360). Choose DeepSeek R1 for cost-sensitive workloads; both are strong choices depending on your budget.

Detailed Comparison

MetricDeepSeek R1GPT-4o
Input Price / 1M tokens$0.55/1MCheaper$2.50/1M
Output Price / 1M tokens$2.19/1MCheaper$10.00/1M
Context Window131KLarger128K
ELO Score (LMSYS)1360Smarter1286
Open SourceYes
Free Tier
Release Date2025-012024-05

Which is cheaper: DeepSeek R1 or GPT-4o?

DeepSeek R1 is the cheaper option at $0.55/1M per 1M input tokens, compared to $2.50/1M for GPT-4o. That is a 4.5x cost difference on input tokens. Output pricing follows a similar pattern: DeepSeek R1 charges $2.19/1M/1M vs $10.00/1M/1M for GPT-4o.

Which has better quality: DeepSeek R1 or GPT-4o?

Based on LMSYS Chatbot Arena rankings, DeepSeek R1 achieves a higher ELO score (1360 vs 1286), suggesting stronger performance on open-ended tasks. DeepSeek R1 excels at o1-level reasoning at 20x lower cost than openai o1. GPT-4o is known for multimodal: handles text, images, and audio natively.

Which should you choose: DeepSeek R1 or GPT-4o?

Choose DeepSeek R1 if:
  • o1-level reasoning at 20x lower cost than OpenAI o1
  • Open source reasoning model
  • Chain-of-thought reasoning visible to users
Choose GPT-4o if:
  • Multimodal: handles text, images, and audio natively
  • Strong reasoning and instruction following
  • Excellent coding capabilities

Frequently Asked Questions

Which is cheaper: DeepSeek R1 or GPT-4o?

DeepSeek R1 is cheaper at $0.55/1M per 1M input tokens, making it 4.5x more affordable.

Which has better quality: DeepSeek R1 or GPT-4o?

DeepSeek R1 scores higher on the LMSYS Chatbot Arena with an ELO of 1360, suggesting better overall quality for most tasks.

Which has a larger context window: DeepSeek R1 or GPT-4o?

DeepSeek R1 has a larger context window at 131K tokens.

Should I choose DeepSeek R1 or GPT-4o?

Choose DeepSeek R1 if cost is the priority. Choose DeepSeek R1 if benchmark quality is most important. Consider your specific use case: DeepSeek R1 is best for reasoning and math, while GPT-4o excels at coding and image-understanding.

Is DeepSeek R1 or GPT-4o open source?

DeepSeek R1 is open source. GPT-4o is proprietary.

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