Comprehensive side-by-side LLM comparison
o1-pro leads with 43.1% higher average benchmark score. o1-pro supports multimodal inputs. Overall, o1-pro 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-pro was developed as an enhanced version of the o1 reasoning model, designed to provide extended reasoning capabilities with greater depth and reliability. Built for professionals and advanced users tackling complex analytical tasks, it offers enhanced thinking time and reasoning quality for the most demanding applications.
8 months newer

Grok-1.5
xAI
2024-03-28

o1-pro
OpenAI
2024-12-17
Average performance across 1 common benchmarks

Grok-1.5

o1-pro
o1-pro
2023-09-30
Available providers and their performance metrics

Grok-1.5

o1-pro

Grok-1.5

o1-pro