openai
GPT-5
legacyfrontierverified 2026-08-21
Pricing
Input $/Mtok
$1.25
Output $/Mtok
$10
Cached in $/Mtok
$0.125
Context
missing
Provider pricing page · verified 2026-08-21
Retained because it is the highest-scoring model on the Aider polyglot benchmark and is still list-priced.
Cost per solved task
light
$0.05
moderate
$0.74
heavy
$1.66
Benchmark rows
| Benchmark | Entry | Pass | Basis |
|---|---|---|---|
| Aider polyglot benchmark | gpt-5 (high) | 88.0% | historical at run date |
| Aider polyglot benchmark | gpt-5 (medium) | 86.7% | historical at run date |