GPT-5 Nano
OpenAI · Mid
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Input / 1M
$0.05
Output / 1M
$0.4
Cached input / 1M
$0.01
Context window
400K
Where it sits
43rd-cheapest mid model
by blended $/Mtok among 262 listed mid models
76% below the mid median
blended $/Mtok across 262 mid models
Output costs 8× input
$0.05 in / $0.4 out per 1M
Cached input saves 80%
$0.01 vs $0.05 per 1M fresh
Held flat since launch (Jun 2026)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $0.05 | $0.4 | $0.01 | Imported from OpenRouter | openrouter.ai |