Claude Opus 4.5 with visible thinking for tougher coding, agent, and research work—built to show its reasoning while tackling long, complex tasks.
Added Nov 1, 2025
Context Window
200.0K
Max Output
32.0K
Input Price (Auto)
$5.00/1M
Output Price (Auto)
$25.01/1M
Cache Read (Auto)
$0.50/1M
Capabilities
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
49.7
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Coding Index
47.8
GPQA Diamond
Graduate-level scientific reasoning
86.6%
Better than 93% of models compared
HLE
Humanity's Last Exam
28.4%
Better than 95% of models compared
IFBench
Instruction-following benchmark
58.0%
Better than 77% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
89.5%
Better than 87% of models compared
AA-LCR
Long context reasoning evaluation
74.0%
Better than 99% of models compared
SciCode
Python programming for scientific computing
49.5%
Better than 96% of models compared
Terminal-Bench Hard
Agentic coding and terminal use
47.0%
Better than 97% of models compared
AIME 2025
American Invitational Mathematics Examination 2025
91.3%
Better than 93% of models compared
MMLU-Pro
Professional and academic subject knowledge
89.5%
Better than 99% of models compared
Last updated May 15, 2026
Artificial AnalysisLiveCodeBench
Contamination-free coding benchmark
87.1%
Better than 98% of models compared
