CrewAI vs OpenAI Responses API
Compare CrewAI and OpenAI Responses API on pricing, free tier, open source, API, self-host, verdict and momentum.
Both are agents tools. CrewAI is freemium (open source (MIT); cloud Free Basic (50 exec/mo); Enterprise custom) with open source, an API, self-hostable and a free tier; OpenAI Responses API is paid (pay-per-token; e.g. GPT-5.6 Luna $0.20/1M input) with an API. The catalog stamp is ship for CrewAI and ship for OpenAI Responses API, last verified 2026-08-19 and 2026-08-19 respectively.
Auto-paired from catalog data — the verdicts are hand-set, the pairing is algorithmic.
CrewAI
Python framework for multi-agent crews — roles, tasks and processes.
OpenAI Responses API
OpenAI's agent-building API — tools, web search and file search built in.
| field | CrewAI | OpenAI Responses API |
|---|---|---|
| pricing | freemium · open source (MIT); cloud Free Basic (50 exec/mo); Enterprise custom | paid · pay-per-token; e.g. GPT-5.6 Luna $0.20/1M input |
| free tier | yes | no |
| open source | yes | no |
| api | yes | yes |
| self-host | yes | no |
| verdict | ship | ship |
| momentum | steady | blueshift |
| last verified | 2026-08-19 | 2026-08-19 |
| key limitation | Multi-agent loops burn tokens fast. | Hosted-tool pricing (storage, search calls) sneaks up on you. |
The call
Pick CrewAI if you need a free tier first.
Pick OpenAI Responses API for new OpenAI agent projects after the Assistants sunset.
CrewAI sources
OpenAI Responses API sources
Open live compare →CrewAI pageOpenAI Responses API pageCrewAI.jsonOpenAI Responses API.json