ChatGPT Agent vs Google Agent Development Kit (ADK)
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose ChatGPT Agent if you want openai's agentic mode in chatgpt that browses, runs code, and acts (Supervised agent, subscription); choose Google Agent Development Kit (ADK) if you want open-source framework for building and orchestrating multi-agent systems (Supervised agent, free).
| ChatGPT Agent | Google Agent Development Kit (ADK) | |
|---|---|---|
| What it is | OpenAI's agentic mode in ChatGPT that browses, runs code, and acts | Open-source framework for building and orchestrating multi-agent systems |
| Type | product-with-agents | framework |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | subscription · Included in ChatGPT Plus/Pro/Team/Enterprise plans | free · Free (open source; pay model + cloud usage) |
| Best for | consumers, smb, enterprise | developers, enterprise |
| Deployment | saas | self-hosted, api |
| Modalities | text, browser, code | text, code, api |
| Models | gpt, proprietary | gemini, model-agnostic |
| Protocols | function-calling, rest-api | a2a, mcp, function-calling, rest-api |
| Integrations | Gmail, GitHub, ChatGPT connectors | Vertex AI, Cloud Run, Gemini, LiteLLM, MCP servers |
| Capabilities | 4 documented | 3 documented |
ChatGPT Agent
- +Unifies browsing (Operator) and analysis (Deep Research) into one agent
- +Acts on a virtual computer: browses, runs code, and builds deliverables
- +Available across ChatGPT paid plans with no separate product to adopt
- -Agentic browsing can be slow and error-prone on complex sites and login/CAPTCHA flows
- -Requires user oversight; not a hands-off autonomous worker
Google Agent Development Kit (ADK)
- +Backed by Google with first-class deployment to Vertex AI and Cloud Run
- +Built around the open A2A protocol for cross-framework agent interoperability
- +Model-agnostic via LiteLLM despite Gemini-first defaults
- -A framework, not a product: you build, host, and secure agents yourself
- -Strongest when paired with Google Cloud, which can imply lock-in
Which should you choose?
ChatGPT Agent is openai's agentic mode in chatgpt that browses, runs code, and acts, best for consumers, smb, enterprise. Google Agent Development Kit (ADK) is open-source framework for building and orchestrating multi-agent systems, best for developers, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.
This comparison is generated from the sourced ChatGPT Agent and Google Agent Development Kit (ADK) profiles. Open either profile to review its evidence and last-reviewed date.