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GPT‑5.4 mini and nano | Official

GPT‑5.4 mini and nano | Official

The GPT-5.4 mini and nano are OpenAI's most advanced small language models designed for both speed and cost-effectiveness. These models deliver top-tier capabilities in coding, reasoning, and multimodal tasks, executing much more quickly than their larger counterparts.

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  • Improved EfficiencyThe GPT-5.4 mini version demonstrates impressive performance, achieving benchmark scores of 54.38% on SWE-Bench Pro while boasting a context window size of 400K.
  • Platform-Independent AccessibilityThe GPT-5.4 mini version can be accessed via ChatGPT's "Thinking" feature, API, and Codex, whereas the GPT-5.4 nano version is exclusively available through the API.
  • Affordable PricingGPT-5.4 Nano provides the most affordable option with a price of $0.20 per 1 million input tokens and $1.25 per 1 million output tokens. Meanwhile, Mini has a cost of $0.75 per 1 million input tokens and $4.50 per 1 million output tokens.
  • Extensive Resource AssistanceSupports text input, image processing, function invocation, web searches, and computer operations capabilities.