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Ink
Behavior JIT: turn proven AI decisions into software.
Ink compiles your AI’s proven, repeated decisions into local code that runs in under 0.1 ms. Novel requests still go to your model. Authority is earned from verified outcomes and revoked when behavior drifts. Not a cache. Not a classifier.
Production AI agents make the same bounded decisions thousands of times: which tool to call, where to route a ticket, whether to allow an action. Teams pay a frontier model for every one, even after the answer has been verified over and over.
Ink is a Behavior JIT. It sits around your existing model call, records decisions and their real outcomes locally, and compiles the behavior that has proven itself into software. Everything else keeps going to your model.
What’s different:
Permission, not just prediction. A local Fast Path only serves once its 95% Wilson lower bound clears your error budget on independent holdout data. Confidence and similarity never grant authority.
Knows when to abstain. Novel or ambiguous requests fall back to your model automatically.
Revokes itself. Live comparison traffic keeps auditing, and if error rises, authority goes back to your model.
Sub-millisecond, local. Under 0.01 ms for Exact and under 0.1 ms for Linear on local benchmarks, with no network calls and no tokens.
Embedded and local-first. Runs in-process on SQLite, with no cloud control plane. pip install ink-jit, Python 3.11–3.13.
Honest numbers: in controlled internal evaluations, Fast Paths served 42–78% of traffic with 0.0% holdout error. External design-partner validation is still in progress, and if your workload doesn’t repeat, Ink saves nothing.
About Ink on Product Hunt
“Behavior JIT: turn proven AI decisions into software.”
Ink was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #100 on the daily leaderboard. Ink compiles your AI’s proven, repeated decisions into local code that runs in under 0.1 ms. Novel requests still go to your model. Authority is earned from verified outcomes and revoked when behavior drifts. Not a cache. Not a classifier.
On the analytics side, Ink competes within Productivity, Developer Tools, Artificial Intelligence, GitHub and Google Cloud Run — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how Ink performed against the three products that launched closest to it on the same day.
For a complete overview of Ink including community comment highlights and product details, visit the product overview.
