DeepSeek R1 vs GPT-4o mini
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4o mini is cheaper than DeepSeek R1 at $0.15/1M/1M vs $0.55/1M/1M input tokens — a 3.7x cost difference. DeepSeek R1 scores higher on quality benchmarks (ELO 1360). Choose GPT-4o mini for cost-sensitive workloads; choose DeepSeek R1 for maximum quality.
Which is cheaper: DeepSeek R1 or GPT-4o mini?
GPT-4o mini is the cheaper option at $0.15/1M per 1M input tokens, compared to $0.55/1M for DeepSeek R1. That is a 3.7x cost difference on input tokens. Output pricing follows a similar pattern: DeepSeek R1 charges $2.19/1M/1M vs $0.60/1M/1M for GPT-4o mini.
Which has better quality: DeepSeek R1 or GPT-4o mini?
Based on LMSYS Chatbot Arena rankings, DeepSeek R1 achieves a higher ELO score (1360 vs 1272), suggesting stronger performance on open-ended tasks. DeepSeek R1 excels at o1-level reasoning at 20x lower cost than openai o1. GPT-4o mini is known for extremely low cost — cheapest flagship-family model.
Which should you choose: DeepSeek R1 or GPT-4o mini?
- → o1-level reasoning at 20x lower cost than OpenAI o1
- → Open source reasoning model
- → Chain-of-thought reasoning visible to users
- → Extremely low cost — cheapest flagship-family model
- → Fast inference
- → Good at structured data extraction
Frequently Asked Questions
Which is cheaper: DeepSeek R1 or GPT-4o mini?
GPT-4o mini is cheaper at $0.15/1M per 1M input tokens, making it 3.7x more affordable.
Which has better quality: DeepSeek R1 or GPT-4o mini?
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 mini?
DeepSeek R1 has a larger context window at 131K tokens.
Should I choose DeepSeek R1 or GPT-4o mini?
Choose GPT-4o mini 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 mini excels at customer-support and data-extraction.
Is DeepSeek R1 or GPT-4o mini open source?
DeepSeek R1 is open source. GPT-4o mini is proprietary.