DRIFTGATE / LLM REGRESSION INFRASTRUCTURE

Your model changed.
Did its behavior?

DriftGate turns production traces into calibrated regression tests and detects statistically meaningful behavioral drift.

EXPLORE DRIFTGATE
False Pass Gate FPR ≤ 0.100
Recall Barrier Recall ≥ 0.800
Confidence Test Wilson 95% CI
Catalog 32k+ Models
AUTONOMOUS GRAPH NODES · PURE SCATTER
THE EVALUATION MOAT

Most AI evaluation suites test against vibes.
DriftGate tests against mathematical invariants.

When developers tweak system prompts (e.g. asking an agent to "be more concise and empathetic"), standard evaluations miss subtle regressions. Output schemas mutate silently, required keys vanish, and uncalibrated LLM judges rubber-stamp broken responses.

PIPELINE ARCHITECTURE

How DriftGate Works

A self-calibrating pipeline that continuously converts production telemetry into rigorous, deterministic regression test suites.

01 / INGESTION

Production Traces to Vector Space

Raw multi-turn logs and agent tool calls are normalized into strict Pydantic schemas and embedded into 1536-dimensional vector branches using Neon Serverless Postgres.

Neon Serverless · pgvector
02 / PARTITIONING

Unsupervised Density Clustering

HDBSCAN automatically discovers true operational behavior boundaries across embedding space without requiring manual annotations or hardcoded categories.

HDBSCAN · Density Partitioning
03 / SYNTHESIS

LangGraph Invariant Synthesis

A 4-node LangGraph agent analyzes cluster histories to generate typed assertion verifiers (regex patterns, JSON schemas, and semantic invariants).

LangGraph · AST Parsing
04 / CALIBRATION

The Calibration Gate

Before trusting a test, DriftGate tests the test. Candidate verifiers are validated against golden ground-truth slices. Rubber-stamp tests (FPR > 0.10) are hard-purged.

FPR ≤ 0.100 · Recall ≥ 0.800
05 / EXECUTION

Dual-Stream Parallel Runner

40 parallel test cases per cluster execute across Baseline (Prompt v1) and Candidate (Prompt v2) on Featherless AI with SHA-256 caching.

Featherless AI · 32k+ Models
06 / INFERENCE

Frequentist Statistical Core

Computes Wilson 95% Score Confidence Intervals and Benjamini-Hochberg FDR control across all clusters, mathematically proving true behavioral regressions.

Wilson 95% CI · FDR Control
DIAGNOSTIC WORKBENCH

Under the Computational Hood

Inspect synthesized verifier code, AST constraints, and frequentist scorecards in real time.

DRIFTGATE ENGINE WORKBENCH
# DriftGate Calibrated Verifier: account_closure.py class AccountClosureVerifier(BaseInvariantVerifier): cluster_id: "account_closure" calibrated_fpr: 0.000 calibrated_recall: 1.000 def verify(self, response: dict) -> VerificationResult: # Invariant 1: Root JSON schema must contain required summary if "summary" not in response: return VerificationResult( passed=False, reason="Missing required key 'summary'. Renamed to 'description'?" ) return VerificationResult(passed=True)
False Positive Rate (FPR)
0.000
Passes Calibration Gate (Threshold ≤ 0.100)
Wilson 95% Confidence Interval
[-1.00, -0.85]
Statistically significant regression confirmed (p = 1.87 × 10⁻¹⁸)
Catalog Inference
40/40 Tests Run
Featherless distributed worker cluster · 0 errors
ENTERPRISE COMPATIBILITY

Integrates With Your Modern AI Stack

Zero code rewrites. Connect DriftGate with any orchestration framework, proxy layer, or local inference gateway.

LangChain / LangGraph
LlamaIndex
LiteLLM Proxy
OpenAI & Anthropic SDK
Neon Postgres + pgvector
Featherless AI
vLLM & Ollama
FastAPI & Pydantic v2
DRIFTGATE 00:00 / 00:30
01 TRACE 02 CLUSTER 03 SYNTHESIZE 04 CALIBRATE 05 RUN 06 ANALYZE 07 REPORT
STAGE 01 · REAL TRACES

REAL PRODUCTION BEHAVIOR.

DriftGate ingests raw multi-turn customer logs and tool trajectories, canonicalizing unstructured traces into typed Pydantic models with 1536-d Neon vector branches.

EVALUATION MACHINE COMPLETE

DRIFT IS NOT A FEELING.
MEASURE IT.

DriftGate turns production traces into calibrated regression tests and statistically identifies meaningful behavioral drift before it reaches users.

PHASE: REAL PRODUCTION BEHAVIOR DRIFTGATE COMPUTATIONAL OBSERVATORY 00s / 30s