OpenAI
GPT-5
General reasoning, agents and coding
text
image
audio
Hosted API
Input per 1M tokens
$1.25
Output per 1M tokens
$10.00
Context window
400K
Max output
—
Reasoning
9.4/10
Coding
9.3/10
Speed
120 tok/s
Overall
9.4/10
What it costs you a month
Change the numbers to match your workload. Cached input is billed lower where the maker offers it (— per million).
Monthly
$127.50
Yearly
$1530
Cheaper option
DeepSeek V3.2 does the same job for $12.18 a month — saving $115.32.