Comprehensive side-by-side LLM comparison
GPT OSS 20B leads with 10.5% higher average benchmark score. GPT OSS 20B is available on 4 providers. Overall, GPT OSS 20B is the stronger choice for coding tasks.
OpenAI
GPT-OSS 20B was created as a smaller open-source variant, designed to balance capability with accessibility for researchers and developers. Built with 20 billion parameters, it provides a more approachable entry point for those seeking to work with open-source language models while benefiting from OpenAI's architectural insights.
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.
25 days newer

Kimi K2 Base
Moonshot AI
2025-07-11

GPT OSS 20B
OpenAI
2025-08-05
Context window and performance specifications
Average performance across 2 common benchmarks

GPT OSS 20B

Kimi K2 Base
Available providers and their performance metrics

GPT OSS 20B
Groq
Novita
OpenAI
ZeroEval

GPT OSS 20B

Kimi K2 Base

GPT OSS 20B

Kimi K2 Base

Kimi K2 Base