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Welcome to Flightline

Flightline is an agentic CI/CD platform that automates testing for AI features. Engineering teams often fly blind when deploying LLM features. Without the ability to test against production data locally, many rely on manual reviews or simple happy-path tests. Flightline replaces these “vibe checks” with a systematic safety net that catches regressions, stress-tests edge cases, and provides quantitative ship-readiness scores.
Flightline is currently in early access. Book a demo to join our design partner program.

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The “Stop Merging on Vibes” Workflow

Flightline provides a clear, 5-step path from codebase discovery to production-ready AI.
  1. Discover - Run flightline discover to map AI operations in your codebase and identify risk tiers.
  2. Generate - Execute flightline generate to create high-fidelity synthetic scenarios that cover the latent space of your inputs based on your code and prompts.
  3. Trace - Wrap your tests or application with fltrace to capture real LLM execution data, including prompts, outputs, and latency.
  4. Evaluate - Use flightline eval to compare actual AI behavior against expected outcomes across your generated scenarios.
  5. Check - Run flightline check as a CI gate to answer the 7 ship-blocking questions and get deep system insights.
# Example: The Flightline loop
flightline discover
flightline generate --from-discover flightline.discovery.json --count 100
fltrace pytest tests/
flightline eval scenarios
flightline check --traces

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Core Pillars

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Chaos Simulation

Don’t wait for users to find your edge cases. Flightline proactively tests your AI logic with hostile inputs, noise, and boundary conditions to find where reasoning breaks before your customers do.

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Systematic Evaluation

We turn qualitative “vibes” into quantitative scores. While LLM outputs are probabilistic, the tools used to measure them must be deterministic. Flightline uses scientific rubrics to grade performance.

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Active Guardrails

The only safety that matters is the one that stops a broken deploy. Flightline integrates into your CI pipeline to block merges if quality scores drop or regressions are detected.

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Getting Started

Installation

Get the Flightline CLI set up in your local environment.

CLI Overview

Explore the full suite of Flightline commands.