GPT-5.2 Codex vs Qwen3.8 Max
Qwen3.8 Max significantly outperforms across most benchmarks.
OpenAI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
GPT-5.2 Codex outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (SWE-Bench Pro). Qwen3.8 Max significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose GPT-5.2 Codex
- you want predictable pricing at $1.75/M input and $14.00/M output
Choose Qwen3.8 Max
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Aug 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
GPT-5.2 Codex outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (SWE-Bench Pro).
Qwen3.8 Max significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Context Window
Maximum input and output token capacity
Only GPT-5.2 Codex specifies input context (400,000 tokens). Only GPT-5.2 Codex specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
Both GPT-5.2 Codex and Qwen3.8 Max support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.2 Codex
Qwen3.8 Max
License
Usage and distribution terms
GPT-5.2 Codex is licensed under a proprietary license, while Qwen3.8 Max uses Qwen3.8-Max License.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Qwen3.8-Max License
Open weights
Release Timeline
When each model was launched
GPT-5.2 Codex was released on 2026-01-14, while Qwen3.8 Max was released on 2026-08-02.
Qwen3.8 Max is 7 months newer than GPT-5.2 Codex.
Jan 14, 2026
7 months ago
Aug 2, 2026
3 weeks ago
6mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.2 Codex and Qwen3.8 Max side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.2 Codex vs Qwen3.8 Max.