openai · OpenAI Platform Docs

Using GPT-5.5 | OpenAI API

Provides guidance on how to implement and utilize the GPT-5.5 model within the OpenAI API ecosystem.

Derived skill

Files assembled from official documentation

Viewing SKILL.md

Provides guidance on how to implement and utilize the GPT-5.5 model within the OpenAI API ecosystem.

Use when you need to implement the GPT-5.5 model into an application or determine the correct way to call its specific capabilities via the API.

File	Contains	Use For
`SKILL.md`	Entry point: scope, routing table, and workflow.	Start here.
`docs/using-gpt-5-openai-api-workflow-guide.md`	A guide detailing the features, behavioral changes, and migration steps for using the GPT-5.5 model via the OpenAI API.	Questions about a guide detailing the features, behavioral changes, and migration steps for using the GPT-5.5 model via the OpenAI API.
`examples/using-gpt-5-openai-api-openai-api-gpt-5-5-model-migration.text`	A text-based example demonstrating how to migrate a project to the GPT-5.5 model using the OpenAI API.	Exact payloads, commands, or snippets shown in A text-based example demonstrating how to migrate a project to the GPT-5.5 model using the OpenAI API.

GPT-5.5 raises the baseline for complex production workflows. It’s a strong fit for coding use cases, tool-heavy agents, grounded assistants, long-context re...
Main sections: Introduction, What’s new, Behavioral changes, Migration quickstart, Automated migration with Codex.

Open the most relevant file under docs/ for the exact documented workflow and wording.
Open schemas/ files for exact structured contracts.
Open examples/ files for concrete requests, commands, snippets, and manifests.
Do not add behavior or configuration that is not present in the attached source files.