GptApiToOSSMigrator – Migrate OpenAI APIs to Local OSS Models

2 saurabhyer 1 8/8/2025, 3:59:50 AM github.com ↗

Comments (1)

saurabhyer · 2h ago
Hi HN,

OpenAI just dropped gpt-oss-120b and gpt-oss-20b—powerful open-weight models you can run locally without fees.

To make migration easy, I built GptApiToOSSMigrator: an open-source tool that auto-converts your OpenAI API calls (e.g., chat.completions) to OSS Harmony format.

Keeps biz logic intact. Supports local inference on laptops/GPUs. No vendor lock-in, huge cost savings.

Repo: https://github.com/saurabh-yergattikar/GptApiToOSSMigrator

Early version—feedback, stars, or PRs welcome! What OSS AI tools are you using?