Comprehensive side-by-side LLM comparison
o1-mini leads with 5.9% higher average benchmark score. GPT OSS 20B offers 68.6K more tokens in context window than o1-mini. GPT OSS 20B is $14.75 cheaper per million tokens. GPT OSS 20B is available on 4 providers. Overall, o1-mini is the stronger choice for coding tasks.
OpenAI
GPT OSS 20B is a language model developed by OpenAI. The model shows competitive results across 7 benchmarks. It excels particularly in MMLU (85.3%), CodeForces (83.9%), GPQA (71.5%). It supports a 262K token context window for handling large documents. The model is available through 4 API providers. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents OpenAI's latest advancement in AI technology.
OpenAI
o1-mini is a language model developed by OpenAI. It achieves strong performance with an average score of 71.9% across 6 benchmarks. It excels particularly in HumanEval (92.4%), MATH-500 (90.0%), MMLU (85.2%). It supports a 194K token context window for handling large documents. The model is available through 2 API providers. Released in 2024, it represents OpenAI's latest advancement in AI technology.
10 months newer
o1-mini
OpenAI
2024-09-12
GPT OSS 20B
OpenAI
2025-08-05
Cost per million tokens (USD)
GPT OSS 20B
o1-mini
Context window and performance specifications
Average performance across 11 common benchmarks
GPT OSS 20B
o1-mini
Available providers and their performance metrics
GPT OSS 20B
Groq
Novita
OpenAI
ZeroEval
GPT OSS 20B
o1-mini
GPT OSS 20B
o1-mini
o1-mini
Azure
OpenAI