Comprehensive side-by-side LLM comparison
o1-preview leads with 27.3% higher average benchmark score. o1-preview is available on 2 providers. Overall, o1-preview is the stronger choice for coding tasks.
xAI
Grok 1.5 was developed by xAI as an advanced language model, designed to provide helpful and accurate information with a focus on reasoning and factual knowledge. Built to serve as a conversational AI with strong analytical capabilities, it represents xAI's early generation of foundation models.
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.
5 months newer

Grok-1.5
xAI
2024-03-28

o1-preview
OpenAI
2024-09-12
Context window and performance specifications
Average performance across 3 common benchmarks

Grok-1.5

o1-preview
Available providers and their performance metrics

Grok-1.5

o1-preview
Azure

Grok-1.5

o1-preview

Grok-1.5

o1-preview
OpenAI