OpenAI Agents API vs. Spawn Comparison


OpenAI Agents API OpenAI	Spawn OpenRouter	+	+
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About The Agents API lets developers build and run cloud agents with the same harness and infrastructure that powers Codex, fully managed by OpenAI. A production-ready agent can be created with a single API call by specifying the task, model, tools, and environment, while OpenAI hosts and maintains the agent harness. Developers can choose where agents run: in an OpenAI-hosted sandbox, on their own infrastructure, or through supported sandbox partners. OpenAI-hosted sandboxes provide secure environments where agents can run code, work with files, use packages, skills, and plugins, and produce artifacts. The API is designed for long-running work, with automatic context compaction that preserves relevant information as sessions span multiple context windows. Tool search loads relevant tool definitions only when needed, while programmatic tool calling lets agents run calls in parallel, chain related operations, and filter or combine results in code.	About Spawn is an experimental OpenRouter tool for deploying AI coding agents on your own infrastructure with a single command. Pick an agent, choose a cloud, and Spawn provisions a virtual machine, installs the agent and its dependencies, authenticates to OpenRouter and the cloud using a CLI OAuth flow, configures endpoints and model routing, and then opens an SSH session so you can start working. Each agent-and-cloud combination is implemented as a self-contained script, avoiding Terraform and YAML while keeping deployment portable. Supported agents include Claude Code, OpenClaw, Codex CLI, OpenCode, Kilo Code, Hermes Agent, Junie, Pi, Cursor CLI, and T3 Code, making it easy to explore coding-agent workflows or switch between them with one command. Spawn supports cloud environments such as DigitalOcean, Sprite, Hetzner Cloud, AWS Lightsail, GCP Compute Engine, and Daytona, as well as a local machine or a throwaway local Docker sandbox.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Developers and AI teams seeking to build reliable, long-running cloud agents with managed context, tools, sandboxes, and multi-agent orchestration	Audience AI developers who want to quickly deploy and experiment with coding agents across their own cloud infrastructure
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing No information available. Free Version Not Supported Free Trial Not Supported	Pricing No information available. Free Version Not Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information OpenAI Founded: 2015 United States openai.com/index/introducing-the-agents-api/	Company Information OpenRouter Founded: 2023 United States openrouter.ai/spawn
Alternatives Omnara	Alternatives OpenRouter
Agent Computer	AgentSky
Archestra	Claude Managed Agents Anthropic
Daytona	bb
Flowise Flowise AI View All	HOL Guard HOL View All
Categories AI Agent Builders Supported AI Agent Infrastructure Supported AI Agents Supported Artificial Intelligence (AI) APIs Supported	Categories Agentic AI Supported

Integrations Amazon Lightsail Not Supported AptiStockX Supported ChatGPT Supported ChatGPT Work Supported Claude Code Not Supported Cursor Not Supported DigitalOcean Not Supported Docker Not Supported Google Compute Engine Not Supported Hermes Agent Not Supported JetBrains Junie Not Supported OpenAI Supported OpenAI Codex Supported OpenAI Dots Supported OpenClaw Not Supported OpenCode Not Supported OpenRouter Not Supported Pi Not Supported T3 Code Not Supported YAML Not Supported Show More Integrations View All 6 Integrations	Integrations Amazon Lightsail Supported AptiStockX Not Supported ChatGPT Not Supported ChatGPT Work Not Supported Claude Code Supported Cursor Supported DigitalOcean Supported Docker Supported Google Compute Engine Supported Hermes Agent Supported JetBrains Junie Supported OpenAI Not Supported OpenAI Codex Not Supported OpenAI Dots Not Supported OpenClaw Supported OpenCode Supported OpenRouter Supported Pi Supported T3 Code Supported YAML Supported Show More Integrations View All 18 Integrations
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