Comprehensive side-by-side LLM comparison
GPT-5 Mini offers 228.7K more tokens in context window than GLM-4.6. GLM-4.6 is $24.60 cheaper per million tokens. GPT-5 Mini supports multimodal inputs. 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-5 mini, released by OpenAI in August 2025, is a smaller variant from the GPT-5 family that inherits GPT-5's unified reasoning architecture and multimodal capabilities at a reduced inference cost. It targets high-volume production use cases requiring a balance of intelligence and response speed, offering GPT-5 capabilities for applications where full GPT-5 inference costs are a concern.
2 months newer

GPT-5 Mini
OpenAI
2025-08
GLM-4.6
Zhipu AI
2025-09-30
Cost per million tokens (USD)
GLM-4.6
GPT-5 Mini
Context window and performance specifications
Available providers and their performance metrics
GLM-4.6
Zhipu AI
GPT-5 Mini
GLM-4.6
GPT-5 Mini
GLM-4.6
GPT-5 Mini
OpenAI