claude-opus-4.1 vs claude-opus-4.5
Input price
$15.00
$5.00
Output price
$75.00
$25.00
Context window
200K
200K
Throughput
137 tok/s
157 tok/s
Availability
98.0%
98.5%
Cost / task
$0.068
$0.023
Efficiency score
76
78
Estimated monthly cost by workload
Metric
CLAUDE-OPUS-4.
CLAUDE-OPUS-4.
Chat assistant
$13,500
$4,500
RAG / long context
$24,750
$8,250
Agent / tool use
$37,800
$12,600
Efficiency score: claude-opus-4.5
Across price, speed and reliability, claude-opus-4.5 offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.
Figures are illustrative demo data, not financial advice.
Frequently asked questions
Is claude-opus-4.1 or claude-opus-4.5 cheaper?+
claude-opus-4.5 has the lower input price — $5.00 vs $15.00 per 1M tokens — so for most blended workloads it is the more cost-effective of the two. Figures are illustrative demo data.
Which should I choose, claude-opus-4.1 or claude-opus-4.5?+
Across price, speed and reliability, claude-opus-4.5 offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.