Comprehensive side-by-side LLM comparison
GPT-5.1 Instant leads with 2.5% higher average benchmark score. GPT-5.1 Instant supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
Zhipu AI
GLM-4.7, released by Zhipu AI on December 22, 2025, is a large language model with approximately 400 billion parameters from the GLM-4 family, designed for deep mathematical reasoning, multi-file software engineering, and stable agentic orchestration. It features a 200K token context window and 128K maximum output tokens, supporting extended code and analysis generation. GLM-4.7 targets advanced open-source deployments under an MIT license via Zhipu AI's Z.ai platform.
OpenAI
GPT-5.1 Instant, released by OpenAI in November 2025, is a low-latency variant from the GPT-5.1 family optimized for fast response times and high-throughput workloads. It targets real-time applications, conversational assistants, and production APIs where response speed is a primary requirement alongside GPT-5.1-generation reasoning quality.
1 month newer

GPT-5.1 Instant
OpenAI
2025-11
GLM-4.7
Zhipu AI
2025-12-22
Context window and performance specifications
Average performance across 1 common benchmarks
GLM-4.7
GPT-5.1 Instant
Performance comparison across key benchmark categories
GLM-4.7
GPT-5.1 Instant
Available providers and their performance metrics
GLM-4.7
Zhipu AI
GPT-5.1 Instant
GLM-4.7
GPT-5.1 Instant
GLM-4.7
GPT-5.1 Instant