Comprehensive side-by-side LLM comparison
o3 mini offers 95.9K more tokens in context window than GLM 5. GLM 5 is $2.14 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
Zhipu AI
GLM-5 is a large language model from Zhipu AI with 745 billion total parameters and 44 billion active parameters per inference, designed for agentic intelligence, advanced reasoning, and frontier-level performance. It features a 200K token context window and targets complex multi-step tasks requiring sustained reasoning and tool use. GLM-5 is available via Zhipu AI's Z.ai platform under an MIT license.
OpenAI
OpenAI o3 mini, released by OpenAI in January 2025, is a compact reasoning model from the o3 family designed for efficient, cost-effective STEM problem-solving. It features a 200K token context window and adjustable chain-of-thought effort settings, allowing developers to trade reasoning depth for speed. o3 mini targets science, mathematics, and coding applications where lower inference cost and faster response times are a priority.
1 year newer

o3 mini
OpenAI
2025-01-31
GLM 5
Zhipu AI
2026-02-11
Cost per million tokens (USD)
GLM 5
o3 mini
Context window and performance specifications
Available providers and their performance metrics
GLM 5
Zhipu AI
o3 mini
GLM 5
o3 mini
GLM 5
o3 mini
OpenAI