Comprehensive side-by-side LLM comparison
DeepSeek-R1-0528 leads with 27.6% higher average benchmark score. DeepSeek-R1-0528 offers 101.4K more tokens in context window than o1-preview. DeepSeek-R1-0528 is $72.35 cheaper per million tokens. Overall, DeepSeek-R1-0528 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-R1-0528 represents a specific release iteration of the DeepSeek-R1 model, developed to incorporate refinements and improvements from ongoing training. Built to provide enhanced reasoning capabilities based on accumulated insights, it continues the evolution of DeepSeek's reasoning-focused architecture.
OpenAI
o1-preview was introduced as an early version of OpenAI's reasoning model series, designed to demonstrate the potential of AI models that engage in extended thinking before responding. Built to solve complex problems through deliberate reasoning processes, it represented an initial step toward more thoughtful and analytical AI systems.
8 months newer

o1-preview
OpenAI
2024-09-12

DeepSeek-R1-0528
DeepSeek
2025-05-28
Cost per million tokens (USD)

DeepSeek-R1-0528

o1-preview
Context window and performance specifications
Average performance across 4 common benchmarks

DeepSeek-R1-0528

o1-preview
Performance comparison across key benchmark categories

DeepSeek-R1-0528

o1-preview
Available providers and their performance metrics

DeepSeek-R1-0528
DeepInfra
DeepSeek
Novita

DeepSeek-R1-0528

o1-preview

DeepSeek-R1-0528

o1-preview

o1-preview
Azure
OpenAI