claude-opus-4.6-fast vs gpt-5.5-pro
Input price
$30.00
$30.00
Output price
$150.00
$180.00
Context window
1000K
1050K
Throughput
165 tok/s
139 tok/s
Availability
99.1%
100.0%
Cost / task
$0.135
$0.150
Efficiency score
82
82
Estimated monthly cost by workload
Metric
CLAUDE-OPUS-4.
GPT-5.5-PRO
Chat assistant
$27,000
$30,600
RAG / long context
$49,500
$52,200
Agent / tool use
$75,600
$86,400
Efficiency score: claude-opus-4.6-fast
Across price, speed and reliability, claude-opus-4.6-fast 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-4.6-fast or gpt-5.5-pro cheaper?+
claude-opus-4.6-fast has the lower input price — $30.00 vs $30.00 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-4.6-fast or gpt-5.5-pro?+
Across price, speed and reliability, claude-opus-4.6-fast offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.