gpt-5.4-pro vs gpt-5.5-pro-2026-04-23
Input price
$30.00
$30.00
Output price
$180.00
$180.00
Context window
1050K
1050K
Throughput
136 tok/s
169 tok/s
Availability
100.0%
98.2%
Cost / task
$0.150
$0.150
Efficiency score
82
82
Estimated monthly cost by workload
Metric
GPT-5.4-PRO
GPT-5.5-PRO-20
Chat assistant
$30,600
$30,600
RAG / long context
$52,200
$52,200
Agent / tool use
$86,400
$86,400
Efficiency score: gpt-5.4-pro
Across price, speed and reliability, gpt-5.4-pro 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 gpt-5.4-pro or gpt-5.5-pro-2026-04-23 cheaper?+
gpt-5.4-pro 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, gpt-5.4-pro or gpt-5.5-pro-2026-04-23?+
Across price, speed and reliability, gpt-5.4-pro offers the stronger overall balance for most workloads — but the right pick depends on your exact mix of input, output and latency needs.