GPT-5 Nano
vendorOpenAI · gpt-5-nano · prices updated July 7, 2026
Input · 1M tokens
$0.05
Cached input · 1M
$0.01−90%
Output · 1M tokens
$0.4
Price history
inputoutput
Specifications
Context window400,000
Knowledge cutoffApr 2025
Tokenizertiktoken (o200k_base)
Batch API−50% off the price
Tools
Web SearchCode InterpreterFile SearchImage GenerationMCP
Exact token counts: local tiktoken tokenizer (o200k_base). Tool calls are billed by the provider separately.