Claude Opus 4.5vsQwen Plus 0728 (thinking)
Claude Opus 4.5 is the newer model, released after Qwen Plus 0728 (thinking).
| Spec | Claude Opus 4.5 | Qwen Plus 0728 (thinking) |
|---|---|---|
| Input price | — | $0.4/M tokens |
| Output price | — | $4/M tokens |
| Context window | — | 1.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Nov 2025 | Sep 2025 |
Our Verdict
Claude Opus 4.5
Qwen Plus 0728 (thinking)Runner-up
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: bigger model tier, newer, major provider backing.
Slight edge
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
Claude Opus 4.5
Input
—
Output
—
Qwen Plus 0728 (thinking)
Input
$0.40
Output
$4.00
Where to run it
4 hosts
Qwen Plus 0728 (thinking)
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
56%
Claude Opus 4.5 uses 3.4x more sentence length
Claude Opus 4.5
Qwen Plus 0728 (thinking)
66%Vocabulary54%
51wSentence Length15w
0.82Hedging0.36
6.0Bold7.0
4.5Lists4.6
0.18Emoji0.34
1.46Headings0.94
0.05Transitions0.09
Based on 27 + 18 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
More comparisons
Qwen Plus 0728 (thinking) vs Ox AlphaNew provider
Qwen Plus 0728 (thinking) vs MiniMax M3New provider
Qwen Plus 0728 (thinking) vs Gemini 2.5 Pro (I/O Edition)New provider
Qwen Plus 0728 (thinking) vs Gemini 2.5 Pro Preview 06-05New provider
Claude Opus 4.5 vs GPT-3.5 TurboNew provider
Claude Opus 4.5 vs GPT-4New provider
Qwen Plus 0728 (thinking) vs GPT-4.1New provider
Qwen Plus 0728 (thinking) vs GPT-4.1 MiniNew provider