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 · Nov 12, 2026, 7:28 AM
Input / 1M
$5.00
Output / 1M
$25.00
Cached input / 1M
$0.50
USD per million tokens (MTok). 5-minute prompt-cache writes: $6.25/MTok; 1-hour cache writes: $10/MTok. Cache hits and refreshes: $0.50/MTok.
Anthropic's current official API pricing table explicitly lists Claude Opus 4.5 at $5 per million base input tokens and $25 per million output tokens. Cache hit pricing is $0.50 per million tokens; the page also lists cache-write rates separately.
Model Intelligence
Context window
200,000 tokens
Arena ranking
35
Benchmarkable
Yes
Model level
release
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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