Comprehensive side-by-side LLM comparison
o3-mini leads with 8.9% higher average benchmark score. o3-mini is available on 2 providers. Overall, o3-mini 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
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
5 months newer

o3-mini
OpenAI
2025-01-30

Kimi K2 Base
Moonshot AI
2025-07-11
Context window and performance specifications
Average performance across 4 common benchmarks

Kimi K2 Base

o3-mini
o3-mini
2023-09-30
Available providers and their performance metrics

Kimi K2 Base

o3-mini
Azure

Kimi K2 Base

o3-mini

Kimi K2 Base

o3-mini
OpenAI