The deciding difference is operational: OpenCode can run on infrastructure you control, OpenAI Agents SDK cannot. If that constraint is real for you, it settles the choice before anything else is considered.
Lightweight loop with handoffs, guardrails and sessions.
Open-source terminal coding agent, provider-agnostic.
| OpenAI Agents SDK | OpenCode | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | usage based | open source |
| Self-hostable | No | Yes |
| Languages | Python, TypeScript | Any language |
| Install | pip install openai-agents | npm install -g opencode-ai |
| Keys required | OPENAI_API_KEY | None |
The deciding difference is operational: OpenCode can run on infrastructure you control, OpenAI Agents SDK cannot. If that constraint is real for you, it settles the choice before anything else is considered. OpenAI Agents SDK: Lightweight loop with handoffs, guardrails and sessions. OpenCode: Open-source terminal coding agent, provider-agnostic.
OpenAI Agents SDK is a hosted service only. OpenCode can run on your own infrastructure.
OpenAI Agents SDK is open source (usage based). OpenCode is open source (open source).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/openai-agents-sdk-vs-opencode