Claude Opus 4.5 vs 4.1
Side-by-side comparison of pricing, features, and capabilities
Pricing
Input / 1M tokens
$5.00
$15.00
Output / 1M tokens
$25.00
$75.00
Avg. Cost / 1M
$15.00
$45.00
Specifications
Context Window
200K
200K
Tier
frontier
frontier
Provider
Anthropic
Anthropic
Capabilities
Feature
claude-opus-4.5
claude-opus-4.1
text
code
vision
reasoning
long context
Verdict
Best for Cost
claude-opus-4.5 is 200% cheaper on average
Best for Quality
Both models are in the same performance tier
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