head to head · open source
OpenAPI-Specification vs gpt-load
OpenAPI-Specification has 31,225 GitHub stars, 9,155 forks, 80 open issues and last shipped 9 days ago. gpt-load has 6,865 stars, 759 forks, 21 open issues and last shipped today. OpenAPI-Specification leads on adoption by 355% (31,225 vs 6,865 stars). OpenAPI-Specification is written in Markdown under Apache-2.0; gpt-load is written in Go under MIT. OpenAPI-Specification has attracted 29% as many forks as stars, gpt-load 11%. gpt-load was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| OpenAPI-Specification | gpt-load | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 6.9K |
| License | Apache-2.0 | MIT |
| Written in | Markdown | Go |
| Last push | 2026-09-11 | 2026-09-20 |
| Forks | ⑂ 9.2K | ⑂ 759 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenAPI-Specification if
- You weight community size — 31K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Markdown
- You value the larger contributor base for long-term maintenance
pick gpt-load if
- You want the gpt-load feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and gpt-load fits your workflow better
About OpenAPI-Specification
The OpenAPI Specification (OAS) is a community driven open specification hosted within the OpenAPI Initiative, a Linux Foundation Collaborative Project. It defines a standard, programming language agnostic interface description for HTTP APIs, represented in YAML or JSON. The specification lives in the HTTP API tooling ecosystem, alongside the tools, libraries, and implementations listed in the repository's implementations document. The project source is released under the Apache 2.0 license, and its GitHub repository has accumulated roughly 31,000 stars and 9,100 forks across 13 years of activity.…
read the full OpenAPI-Specification overview →
About gpt-load
GPT Load is a self hosted AI gateway written in Go and released under the MIT license. It gives applications a single entry point — one base URL and one AccessKey — for reaching many AI providers at once. Providers, accounts, credentials, models, and routing policy are configured in the bundled management UI rather than in application code.
read the full gpt-load overview →
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Frequently asked questions
Is OpenAPI-Specification or gpt-load more popular?
OpenAPI-Specification has 31,225 GitHub stars and gpt-load has 6,865. OpenAPI-Specification has the larger community by that measure.
Are OpenAPI-Specification and gpt-load free?
Both are open source. OpenAPI-Specification is licensed under Apache-2.0 and gpt-load under MIT. Neither carries a licence fee.
What is the difference between OpenAPI-Specification and gpt-load?
OpenAPI-Specification is written in Markdown and gpt-load in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenAPI-Specification or gpt-load?
Choose OpenAPI-Specification if you want the larger community (31,225 stars) or its Apache-2.0 licence terms. Choose gpt-load if its feature set, stack or MIT licence fits better. Both are self-hostable.