GPT-5.1-Codex vs Qwen3.8 Max
Compare GPT-5.1-Codex by OpenAI against Qwen3.8 Max by Qwen, context windows of 400K vs 1.0M, tested across 21 shared challenges.
Our Verdict
GPT-5.1-Codex
Qwen3.8 Max
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1-Codex
Input
$1.25
1.6× cheaper
Output
$10.00
Qwen3.8 Max
Input
$2.00
Output
$6.00
1.7× cheaper
GPT-5.1-Codex wins input (1.6× cheaper)·Qwen3.8 Max wins output (1.7× cheaper)
Writing DNA
Style Comparison
Similarity
34%
GPT-5.1-Codex uses 19.5x more transitions
GPT-5.1-Codex
Qwen3.8 Max
70%Vocabulary48%
17wSentence Length17w
0.39Hedging0.95
3.4Bold4.3
3.5Lists8.2
0.00Emoji0.00
0.50Headings1.92
0.38Transitions0.02
Based on 14 + 13 text responses
Research
What we learned reading every model
FAQ
