Splitstream
v 1.0 · ai-native cro
Set your goal.
Watch your conversion rate climb forever.
Splitstream connects to your GitHub repo, generates landing-page variants with Claude Sonnet 4.6, splits live traffic 50/50, and merges the winner to main when you approve. Real code. Real PRs. No DOM overlay. No marketing dashboard.
01
Connect
GitHub repo, Vercel project, PostHog. Splitstream installs a single middleware via PR. You merge it. That's onboarding.
02
Generate
Claude Sonnet 4.6 reads your landing page and writes a variant. Code passes lint, typecheck, build before a PR opens.
03
Promote
Live traffic splits 50/50. When a winner is statistically significant with guardrails clean, you click approve. We merge.
Why Splitstream
Optimisation that edits your code, not your DOM.
- Real PRs, real diffs, real version control
- Bayesian winner detection with guardrails
- Auto-rollback within 7 days of a promotion
- Compounded lift — your hero metric, forever climbing
- Single-tenant: your repo, your Vercel, your data
- No WYSIWYG. No JS overlay. No marketing dashboard.