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Claude Opus 4.5
Claude Opus 4.5
Anthropic · Frontier tier
Claude Opus 4.5
A
Anthropic
frontier
Release Date: Nov 1, 2025
1467
Arena Elo
87
GPQA
92
MATH
96
HumanEval
90.5
MMLU
64
SWE-bench
Try Claude Opus 4.5
Specifications
Context Window
200K tokens
Max Output
64K tokens
Input Price
$5 per million
Output Price
$25 per million
Release Date
November 1, 2025
Tier
Frontier
Capabilities
vision
tool-use
code
extended-thinking
agentic
Benchmarks
Arena Elo
1467
MMLU
90.5
GPQA
87
MATH
92
HumanEval
96
SWE-bench
64
Cost Estimate
Input Tokens
500K
Output Tokens
100K
Estimated Cost
$5.0000
Input: $2.5000
Output: $2.5000
Related Models
A
Claude Opus 4.6
Anthropic · Elo 1496
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A
Claude Sonnet 4.6
Anthropic · Elo 1470
frontier
A
Claude Sonnet 4.5
Anthropic · Elo 1450
frontier
A
Claude Haiku 4.5
Anthropic · Elo 1404
mid
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