OpenAI Releases Prompt Guidance Documentation for GPT-5.4

Summary

OpenAI has published comprehensive prompt guidance documentation for GPT-5.4, its latest language model. The documentation appears on the company's API reference site and provides developers with detailed instructions for optimizing prompts across various use cases including text generation, code generation, vision tasks, and audio processing. The guidance covers core concepts, best practices, and advanced techniques for working with the new model.

The documentation release suggests GPT-5.4 represents a significant update to OpenAI's model lineup, with expanded capabilities requiring updated prompting strategies. The materials include sections on structured output, function calling, agent building, reasoning optimization, and model-specific features like prompt caching and context management. OpenAI has also provided guidance on production deployment, safety considerations, and cost optimization for enterprise users.

Notably, the documentation emphasizes agent-building capabilities and includes extensive coverage of tools integration, including web search, model context protocol (MCP), file operations, and computer use. The release also highlights enhanced reasoning capabilities with dedicated best practices, suggesting GPT-5.4 may feature improved logical reasoning and problem-solving abilities compared to previous versions. The documentation is part of OpenAI's broader developer ecosystem, which includes SDKs, cookbooks, and integration guides for ChatGPT and Codex.

• OpenAI provides detailed optimization guidance covering latency, costs, accuracy, and safety considerations for enterprise deployments