+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-5.1 Codex vs Qwen3 Coder Next
Comprehensive side-by-side LLM comparison
GPT-5.1 Codex leads with 2.9% higher average benchmark score. Both models have their strengths depending on your specific coding needs.
+
+
+
+
OpenAI
GPT-5.1 Codex, released by OpenAI in November 2025, is a coding-specialized model from the GPT-5.1 family engineered for software engineering tasks including code generation, multi-file editing, and agentic development. It targets developers and automated coding pipelines requiring a GPT-5.1-generation model tuned for programming.
+
+
+
+
Alibaba / Qwen
Qwen3 Coder Next is a coding-specialized open-weight model from Alibaba's Qwen3 family, built on the Qwen3-Next architecture with hybrid attention and Mixture-of-Experts design optimized for local development and agentic coding workflows. It targets on-device and self-hosted deployments requiring a capable coding agent that can operate within consumer hardware constraints.
3 months newer
GPT-5.1 Codex
OpenAI
2025-11
Qwen3 Coder Next
Alibaba / Qwen
2026-02-04
Average performance across 1 common benchmarks
+
+
+
+
GPT-5.1 Codex
Average Score:42.9%(+2.9%)
+
+
+
+
Qwen3 Coder Next
Average Score:40.0%
Performance comparison across key benchmark categories
+
+
+
+
GPT-5.1 Codex
Coding42.9%(+2.9%)
+
+
+
+
Qwen3 Coder Next
Coding40.0%
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GPT-5.1 Codex
0 providers
+
+
+
+
Qwen3 Coder Next
0 providers
+
+
+
+
GPT-5.1 Codex
Avg Score:42.9%(+2.9%)
Providers:0
+
+
+
+
Qwen3 Coder Next
Avg Score:40.0%
Providers:0