Claude Sonnet 4.5vsOpenRouter Fusion · Quality (Jun 2026)
OpenRouter Fusion · Quality (Jun 2026) has a larger context window than Claude Sonnet 4.5 (256K tokens vs 200K tokens).
| Spec | Claude Sonnet 4.5 | OpenRouter Fusion · Quality (Jun 2026) |
|---|---|---|
| Input price | $3/M tokens | — |
| Output price | $15/M tokens | — |
| Context window | 200K tokens | 256K tokens |
| Released | Sep 2025 | Jun 2026 |
Our Verdict
OpenRouter Fusion · Quality (Jun 2026)
Claude Sonnet 4.5Runner-up
Not enough votes to call it. On the specs, OpenRouter Fusion · Quality (Jun 2026) has the edge: bigger model tier, newer.
Too close to call
API pricing
Cost per 1M tokens
Claude Sonnet 4.5
Input
$3.00
Output
$15.00
OpenRouter Fusion · Quality (Jun 2026)
Input
—
Output
—
Writing DNA
Style Comparison
Similarity
40%
Claude Sonnet 4.5 uses 4.5x more sentence length
Claude Sonnet 4.5
OpenRouter Fusion · Quality (Jun 2026)
64%Vocabulary55%
94wSentence Length21w
0.48Hedging0.47
4.9Bold4.0
8.0Lists2.0
0.45Emoji0.68
1.91Headings0.73
0.07Transitions0.09
Based on 20 + 27 text responses
Research
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FAQ
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