Comprehensive side-by-side LLM comparison
o1 leads with 15.4% higher average benchmark score. o1 is available on 2 providers. Overall, o1 is the stronger choice for coding tasks.
Moonshot AI
Kimi K2 Base was created as the foundation model in the K2 series, designed to serve as a starting point for fine-tuning and customization. Built to provide strong base capabilities for domain-specific applications, it enables developers to build specialized solutions on Moonshot's architecture.
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.
6 months newer

o1
OpenAI
2024-12-17

Kimi K2 Base
Moonshot AI
2025-07-11
Context window and performance specifications
Average performance across 5 common benchmarks

Kimi K2 Base

o1
Available providers and their performance metrics

Kimi K2 Base

o1
Azure

Kimi K2 Base

o1

Kimi K2 Base

o1
OpenAI