goose is the only agent in this set governed by a foundation rather than a vendor, and it can borrow an existing Claude, ChatGPT or Gemini subscription over the Agent Client Protocol instead of an API key.
“goose is part of the [Agentic AI Foundation (AAIF)](https://aaif.io/) at the Linux Foundation.”
goose charges nothing for itself; you pay whichever provider you configure, and it accepts a ChatGPT Plus or Pro subscription in place of an API key.
“Access GPT-5 Codex models optimized for code generation and understanding. Requires a ChatGPT Plus/Pro subscription.”
Automate work that is not coding — research, writing, data analysis — on the same machine and the same agent, through the desktop app, the CLI or the API.
“goose is a general-purpose AI agent that runs on your machine. Not just for code — use it for research, writing, automation, data analysis, or anything you need to get done.”
Wire the agent into tools you already run: goose connects to 70+ extensions over the Model Context Protocol.
“Connect to 70+ extensions via the [Model Context Protocol](https://modelcontextprotocol.io/) open standard.”
Ship one configuration to a whole team: a custom distribution bundles the providers, extensions and branding before anybody installs it.
“[Custom Distributions](https://github.com/aaif-goose/goose/blob/main/CUSTOM_DISTROS.md) — build your own goose distro with preconfigured providers, extensions, and branding”
A developer who wants the widest model catalogue in a terminal should pick OpenCode, which reaches 75+ providers from one config file.
“OpenCode uses the AI SDK and Models.dev to support 75+ LLM providers and it supports running local models.”
Model choice is not free: goose leans on tool calling, so a weak or local model degrades it, and the vendor names Claude 4 as the model it works best with.
“goose relies heavily on tool calling capabilities and currently works best with Claude 4 models.”
Two OpenAI reasoning models do not run at all, because they cannot call tools.
“o1-mini and o1-preview are not supported because goose uses tool calling.”
Unattended scheduling is broken in 1.45.0: headless runs die at the first tool call and a recipe's own goose_mode is ignored.
“Scheduler unusable for unattended recipes on 1.45.0: headless runs die at first tool call, recipe-level goose_mode is silently ignored, an interrupted run-now permanently wedges the job, and spawned sessions get no schedule_id”
