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Lexem | Version, Eval & Deploy Prompts
Git for prompts. Version, test & deploy AI safely.
Lexem is the version control and testing platform for AI prompts. Commit, diff, branch, rollback, run evals, and deploy LLM prompts safely with eval-gated promotions, regression detection, and a TypeScript/Python SDK.
Built Lexem because prompt engineering deserved the same discipline we already expect from code.
Lexem gives AI prompts:
* Version control with commits, diffs, branching, merges, and one-click rollback
* Eval + regression testing with exact match, regex, and LLM-as-judge scoring
* AI-generated test cases for happy paths, edge cases, and refusals
* AI diff analysis that explains prompt changes and potential risks in plain English
* Eval-gated deploys across dev, staging, and prod
* Token analytics per version and across prompts
* SDKs for TypeScript + Python to ship prompt updates without app redeploys
* Fully open-source + self-hostable on your own Postgres
The goal was simple: make prompt iteration safer, testable, and production-ready.
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About Lexem | Version, Eval & Deploy Prompts on Product Hunt
“Git for prompts. Version, test & deploy AI safely.”
Lexem | Version, Eval & Deploy Prompts was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #117 on the daily leaderboard. Lexem is the version control and testing platform for AI prompts. Commit, diff, branch, rollback, run evals, and deploy LLM prompts safely with eval-gated promotions, regression detection, and a TypeScript/Python SDK.
Lexem | Version, Eval & Deploy Prompts was featured in Productivity (652.4k followers), Open Source (68.4k followers) and Developer Tools (513k followers) on Product Hunt. Together, these topics include over 216.6k products, making this a competitive space to launch in.
Who hunted Lexem | Version, Eval & Deploy Prompts?
Lexem | Version, Eval & Deploy Prompts was hunted by Rudra Sharma. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Lexem | Version, Eval & Deploy Prompts stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Rudra Sharma