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GPT-5 Nano (batch)

OPENAI Developer Architecture Profile

Intelligence (ELO)1484Chatbot Arena Verified
Max Context Limit400,000Max Out: 128,000 tokens
Prompt Caching90% OFF$0.0025 / 1M cached
Standard API / 1M$0.22🧠 Deep Reasoner

Model Capabilities & Contract SLAs

  • Coding & Logic
  • Fictional
  • Reasoning
  • Agentic
  • 📋 Strict JSON Schema
  • 🛠️ Native Tool Calling
  • 🧠 Extended Test-Time Reasoning
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 (Standard Prompt)$0.02 / 1M
⚡ Cached Input (Prompt Cache Read)90% OFF$0.0025 / 1M
Output Tokens (Completion)$0.20 / 1M

Pricing data via OpenRouter. Sync: 10/2/2026

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