GPT-5 Nano

OPENAI Developer Architecture Profile

Intelligence (ELO)1483Chatbot Arena Verified

Max Context400,000Tokens

API Cost / 1M$0.45Blended Prompt + Completion

Model Capabilities

Coding & Logic
Fictional

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...

Granular Pricing Matrix

Input Tokens (Prompt)$0.05 / 1M

Output Tokens (Completion)$0.40 / 1M

Pricing data via OpenRouter. Sync: 4/30/2026

Evaluate Competitors

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