Claude Opus 4.5
The best model in the world for coding, agents, and computer use.
A Claude model release from Anthropic positioned for coding, agentic work, and computer use.
Pricing
Official site · Sep 24, 2026, 1:10 PM
Input / 1M
$5.00
Output / 1M
$25.00
Cached input / 1M
$0.50
Prices are USD per million tokens (MTok). Cache hits/refreshes: $0.50/MTok; 5-minute cache writes: $6.25/MTok; 1-hour cache writes: $10/MTok.
Anthropic's current official pricing table lists Claude Opus 4.5 at $5 per million base input tokens and $25 per million output tokens. It also lists cache hits/refreshes at $0.50 per million tokens; 5-minute and 1-hour cache writes are $6.25 and $10 per million tokens, respectively.
Model Intelligence
Context window
200,000 tokens
Arena ranking
24
Benchmarkable
Yes
Model level
release
Intelligence Index
23.7
Math Index
62.7
MMLU Pro
0.89
GPQA
0.81
HLE
0.13
LiveCodeBench
0.74
AIME 2025
0.63
IFBench
0.43
LCR
0.71
TerminalBench Hard
0.41
TAU2
0.86
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