Built for AI product teams shipping weekly

Git-style version control for LLM system prompts

Store, diff, rollback, and A/B test Claude, GPT, and Gemini prompts across deployments. Stop shipping silent regressions caused by invisible prompt edits.

Start for $19/month View Product Dashboard

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What teams recover instantly

Prompt regressions that used to take days to isolate now take minutes.

"On Tuesday we changed one line in our refund policy prompt. CSAT dropped 11% overnight."

With PromptVC the team compared v18 vs v19, saw the exact deletion, re-ran real user inputs across providers, and rolled back before the next support shift.

No guesswork. No blind revert. Full diff traceability.

The problem every AI team hits

No prompt history

Production prompts live in notebooks, Slack, and ad-hoc docs. No canonical version timeline.

Silent regressions

A tiny prompt change can tank quality, but there is no immediate way to identify what changed.

Cross-model drift

Prompts behave differently across Claude, GPT, and Gemini, and teams lack side-by-side test evidence.

How PromptVC solves it

Version Timeline

Save every prompt iteration with version labels and release notes.

Exact Diffs

Compare versions line-by-line to expose risky instruction changes instantly.

A/B by Provider

Send identical user input to multiple versions across GPT, Claude, and Gemini.

Safe Rollbacks

Promote stable versions and revert bad releases without losing audit context.

Simple pricing for shipping teams

One plan includes prompt history, diff tools, rollback workflows, and provider A/B testing.

Best fit for AI product squads who deploy prompt updates continuously.

$19/mo

Per workspace • cancel anytime

Unlimited prompt versions
Version diff viewer
Cross-provider test runner
Webhook unlock flow

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FAQ

What happens when a one-line prompt edit breaks behavior?

PromptVC stores every version, highlights exact text diffs, and lets you rollback immediately. You can prove causality by running the same user input against old and new versions across GPT, Claude, and Gemini.

Can my team tag releases and audit changes later?

Yes. Every version includes labels, timestamps, and author metadata. The timeline acts like Git history for system prompts, so deployment reviews are auditable.

How does billing work?

One flat subscription at $19/month per workspace. Checkout is handled by Stripe Payment Links, and access is unlocked with a secure cookie after purchase confirmation.

Do I need all provider API keys?

No. Configure only the providers you use. PromptVC runs tests against available keys and reports clear errors for missing credentials.