Claude Opus 4 vs OpenRouter Fusion · Budget (Jun 2026)
Compare Claude Opus 4 by Anthropic against OpenRouter Fusion · Budget (Jun 2026) by OpenRouter, context windows of 200K vs 256K, tested across 44 shared challenges.
Our Verdict
Claude Opus 4
OpenRouter Fusion · Budget (Jun 2026)
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
Claude Opus 4
Input
$15.00
Output
$75.00
OpenRouter Fusion · Budget (Jun 2026)
Input
—
Output
—
Writing DNA
Style Comparison
Similarity
51%
Claude Opus 4 uses 11.2x more emoji
Claude Opus 4
OpenRouter Fusion · Budget (Jun 2026)
64%Vocabulary58%
62wSentence Length22w
0.52Hedging0.13
4.4Bold3.8
9.1Lists1.7
0.11Emoji0.01
1.87Headings0.93
0.27Transitions0.17
Based on 16 + 27 text responses
Research
What we learned reading every model
FAQ
