GPT-5.6 Terra vs Qwen3.5 Plus 2026-02-15
Compare GPT-5.6 Terra by OpenAI against Qwen3.5 Plus 2026-02-15 by Qwen, context windows of 1.1M vs 1.0M, tested across 53 shared challenges.
Our Verdict
GPT-5.6 Terra
Qwen3.5 Plus 2026-02-15
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Qwen3.5 Plus 2026-02-15 is 6.3x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.6 Terra
Input
$2.50
Output
$15.00
Qwen3.5 Plus 2026-02-15
Input
$0.40
6.3× cheaper
Output
$2.40
6.3× cheaper
Qwen3.5 Plus 2026-02-15 is cheaper on both — 6.3× input, 6.3× output
Writing DNA
Style Comparison
Similarity
50%
Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji
GPT-5.6 Terra
Qwen3.5 Plus 2026-02-15
57%Vocabulary54%
18wSentence Length18w
0.85Hedging0.51
2.8Bold5.3
4.6Lists2.9
0.00Emoji0.10
1.12Headings0.75
0.06Transitions0.09
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
