Comprehensive side-by-side LLM comparison
GLM-4.6 offers 72.0K more tokens in context window than GPT-OSS-120B. GLM-4.6 is $Infinity cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
Zhipu AI
GLM-4.6, released by Zhipu AI in September 2025, is a large language model with approximately 357 billion parameters from the GLM-4 family, featuring an expanded 200K token context window. It supports strong mathematical reasoning, coding, and agentic orchestration tasks. GLM-4.6 targets enterprise-ready open-source deployments under an MIT license, with availability through Zhipu AI's Z.ai platform.
OpenAI
GPT-OSS-120B, released by OpenAI in August 2025, is an open-weight large language model with 120 billion parameters distributed under the Apache 2.0 license. It represents OpenAI's entry into the open-source model space, enabling developers to self-host and fine-tune a GPT-5-generation-class model. GPT-OSS-120B targets research applications, on-premises deployments, and custom fine-tuning workflows requiring a large open-weight base model.
2 months newer

GPT-OSS-120B
OpenAI
2025-08
GLM-4.6
Zhipu AI
2025-09-30
Cost per million tokens (USD)
GLM-4.6
GPT-OSS-120B
Context window and performance specifications
Available providers and their performance metrics
GLM-4.6
Zhipu AI
GPT-OSS-120B
GLM-4.6
GPT-OSS-120B
GLM-4.6
GPT-OSS-120B
Hugging Face