Comprehensive side-by-side LLM comparison
DeepSeek R1 Zero leads with 22.4% higher average benchmark score. o1-preview is available on 2 providers. Overall, DeepSeek R1 Zero is the stronger choice for coding tasks.
DeepSeek
DeepSeek-R1-Zero was introduced as an experimental variant trained with minimal human supervision, designed to develop reasoning patterns through self-guided reinforcement learning. Built to explore how models can discover analytical strategies independently, it represents research into autonomous reasoning capability development.
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.
4 months newer

o1-preview
OpenAI
2024-09-12

DeepSeek R1 Zero
DeepSeek
2025-01-20
Context window and performance specifications
Average performance across 2 common benchmarks

DeepSeek R1 Zero

o1-preview
Available providers and their performance metrics

DeepSeek R1 Zero

o1-preview
Azure

DeepSeek R1 Zero

o1-preview

DeepSeek R1 Zero

o1-preview
OpenAI