---
type: "Evidence Item"
title: "From model to agent: Equipping the Responses API with a computer environment"
description: "How OpenAI built an agent runtime using the Responses API, shell tool, and hosted containers to run secure, scalable agents with files, tools, and state."
resource: "https://openai.com/index/equip-responses-api-computer-environment"
tags: ["appendix-iii", "vendor", "openai"]
timestamp: "2026-03-11"
category: "vendor"
publisher: "OpenAI"
cope_score: 74
confidence: 0.9
---

# From model to agent: Equipping the Responses API with a computer environment

# Claim

How OpenAI built an agent runtime using the Responses API, shell tool, and hosted containers to run secure, scalable agents with files, tools, and state.

# Relevance

Appendix III, section two: vendor threshold and platform capability evidence

# Oracle Verdict

This is a lower-to-mid strength vendor signal for the capability register. It does not prove displacement on its own, but it records another platform step that can later show up as workflow automation, procurement change, or organisational dependency.

# Metadata

* Publisher: OpenAI
* Category: vendor
* Sector: AI infrastructure
* Capability: Agent platform and API infrastructure
* Cope score: 74
* Confidence: 0.9

# Related Concepts

* [Live evidence index](index.md)
* [Thesis](../thesis.md)

# Citations

[1] [From model to agent: Equipping the Responses API with a computer environment](https://openai.com/index/equip-responses-api-computer-environment)