gpt-5-nano-2025-08-07

by OpenAI · GPT 5 family · released Aug 7, 2025
Closed Active

Cheapest fastest GPT-5 tier.

Pricing

Launch price (from Aug 7, 2025)
$0.050 in / $0.400 out per 1M tokens
Current price (since Aug 7, 2025)
$0.050 in / $0.400 out per 1M tokens
Cache read: $0.0050/M
TierEffectiveIn $/MOut $/MCache $/MPer imagePer secondSource
Standard Aug 7, 2025 – now $0.050 $0.400 $0.0050 - - -
Batch Aug 7, 2025 – now $0.025 $0.200 - - - -

Specifications

Model typeMultimodal
ArchitectureDense
ParametersNot disclosed
Context window400K tokens
Max output128K tokens
Knowledge cutoffMay 1, 2024
LicenseProprietary
Modalities Text input Text output
Tags Reasoning Small LM
End of lifeNot disclosed
Last verifiedAug 20, 2026