+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GLM 5 vs GPT-5.1 Codex Max
Comprehensive side-by-side LLM comparison
GPT-5.1 Codex Max leads with 6.4% higher average benchmark score. Overall, GPT-5.1 Codex Max is the stronger choice for coding tasks.
+
+
+
+
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
GPT-5.1 Codex Max, released by OpenAI in November 2025, is an enhanced coding variant from the GPT-5.1 Codex line, designed for more complex software engineering tasks requiring additional reasoning depth. It targets large-scale code generation, automated refactoring, and sophisticated agentic development workflows.
3 months newer
GPT-5.1 Codex Max
OpenAI
2025-11
GLM 5
Zhipu AI
2026-02-11
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
GLM 5
Average Score:42.1%
+
+
+
+
GPT-5.1 Codex Max
Average Score:48.5%(+6.4%)
Performance comparison across key benchmark categories
+
+
+
+
GLM 5
Coding42.1%
+
+
+
+
GPT-5.1 Codex Max
Coding48.5%(+6.4%)
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GLM 5
1 providers
Zhipu AI
+
+
+
+
GPT-5.1 Codex Max
0 providers
+
+
+
+
GLM 5
Avg Score:42.1%
Providers:1
+
+
+
+
GPT-5.1 Codex Max
Avg Score:48.5%(+6.4%)
Providers:0