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MODELS

GPT-5.4

by OpenAI

modelOpenAIChatGPT
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Overview

OpenAI frontier model for professional reasoning, coding, tool use, and agentic workflows across ChatGPT, API, and Codex.

Details

GPT-5.4 is an OpenAI frontier model described by the supplied OpenAI launch and API documentation sources as intended for professional reasoning, coding, tool use, and agentic workflows across ChatGPT, the OpenAI API, and Codex. Supplied OpenAI safety sources identify GPT-5.4 Thinking as the latest reasoning model in the GPT-5 series and reference system-card and Deployment Safety Hub materials covering baseline safety evaluations, the Preparedness Framework, cybersecurity evaluations, model safety training, monitoring, trust-based access, and security controls. The supplied OpenAI API pricing source states that current GPT-5.4-family pricing is listed for gpt-5.4, gpt-5.4-mini, gpt-5.4-nano, and gpt-5.4-pro across standard, batch, flex, and priority processing tiers.

When to Use

Use for professional reasoning tasks where an OpenAI frontier model is appropriate. Use for coding tool-use or agentic workflow evaluations in ChatGPT OpenAI API or Codex contexts. Use when you need a GPT-5-series reasoning model and can review the associated system-card and deployment-safety materials.

Getting Started

  1. Read the GPT-5.4 launch page for OpenAI’s overview.
  2. Review the GPT-5.4 API model documentation before implementation.
  3. Check OpenAI API pricing for current gpt-5.4
  4. gpt-5.4-mini
  5. gpt-5.4-nano
  6. and gpt-5.4-pro rates and processing tiers.
  7. Review the GPT-5.4 Thinking system-card and Deployment Safety Hub materials for safety and cybersecurity context.
  8. Run task-specific evaluations for reasoning
  9. coding
  10. tool use
  11. and agentic workflow quality before production deployment.

Key Features

  • •OpenAI frontier model
  • •Designed for professional reasoning
  • •Supports coding use cases
  • •Supports tool use
  • •Supports agentic workflows
  • •Referenced for ChatGPT
  • •OpenAI API
  • •and Codex use
  • •OpenAI system-card materials available for GPT-5.4 Thinking
  • •OpenAI pricing page lists GPT-5.4-family entries across multiple processing tiers

Capabilities

  • •reasoning
  • •coding
  • •tool use
  • •agentic workflows

Last updated Jun 30, 2026