Comprehensive side-by-side LLM comparison
o1 leads with 8.3% higher average benchmark score. o1 offers 139.2K more tokens in context window than o1-preview. Both models have similar pricing. Overall, o1 is the stronger choice for coding tasks.
OpenAI
o1 was developed as part of OpenAI's reasoning-focused model series, designed to spend more time thinking before responding. Built to excel at complex reasoning tasks in science, coding, and mathematics, it employs extended internal reasoning processes to solve harder problems than traditional language models through careful step-by-step analysis.
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.
3 months newer

o1-preview
OpenAI
2024-09-12

o1
OpenAI
2024-12-17
Cost per million tokens (USD)

o1

o1-preview
Context window and performance specifications
Average performance across 8 common benchmarks

o1

o1-preview
Performance comparison across key benchmark categories

o1

o1-preview
Available providers and their performance metrics

o1
Azure
OpenAI


o1

o1-preview

o1

o1-preview
o1-preview
Azure
OpenAI