F
FeaturizeBETA
Feature Debt Calculator — Live

How much compute are you burning
on features you already have?

Adjust your numbers. Watch the math materialize.

featurize.estimate --interactive
12
1200
45
5500
8×
48×
Duplicated Compute Hrs Eliminated /wk
315hrs
Skew Incidents Prevented /mo
27inc
Estimated Annual Savings
$2.2M

Based on 540 total features across your fleet · Updated in real time

See It Running →
Spoke 01 — Serving Latency
4.2ms
p99 Serving Latency

Sub-5ms responses.
Even at 100K RPS.

The Featurize online store pre-materializes features at write time, not read time. When your model calls get_features(entity_id), the answer is already there — no joins, no Spark job, no cache miss spiral. Backed by a tiered storage engine: Redis L1 → Cassandra L2 → object store for history.

4.2ms p99
1.1ms median
100K+ RPS tested
Online Serving Architecture
Model Inference
featurize.get()
L1 Hit
Redis (in-memory)
~1ms
L2 Hit
Cassandra (SSD)
~4ms
History
Object Store (S3)
~50ms
# Benchmark: aws c6g.2xlarge, 100K concurrent
# p50: 1.1ms · p99: 4.2ms · p999: 11ms
Spoke 02 — Training/Serving Consistency
Schema Version Registry
FeatureTraining vServing v
Before Featurize
user_ltv_30dv2.1v1.8
item_embed_256v5.0v4.3
session_depthv1.0MISSING
After Featurize
user_ltv_30dv2.1SYNCED
item_embed_256v5.0SYNCED
session_depthv1.0SYNCED
Single source of truth. Training and serving read from the same materialized store.
0
Skew Incidents After Migration

Training and serving
read the same bytes.

Training-serving skew is the silent model killer — your metrics look fine in notebooks but degrade in production because the feature pipeline drifted. Featurize enforces a single materialized store with schema versioning and point-in-time retrieval. Your training job and your inference server call the same API with the same contract. Drift is impossible by construction.

Schema versioning with backward compat checks
Point-in-time feature retrieval for training
Automated drift detection alerts
Spoke 03 — Developer Experience
1
Line of Code to Promote a Feature to Production

Define once.
Reuse forever.

Stop rewriting the same Spark aggregation in your training notebook, your streaming job, and your REST endpoint. Define a feature once with the Featurize SDK. Promote it with one call. It materializes automatically across batch, streaming, and online stores — versioned, tested, and ready for your next model.

01
Define
Python decorator on your transform fn
02
Test
Unit test with historical data slice
03
Promote
featurize.promote(feature_name)
Before — duplicated across 4 repos
# training_pipeline.py
def compute_user_ltv(df):
# 47 lines of Spark SQL...
# serving_api.py — same logic, diverged
def get_user_ltv(user_id):
# 52 lines, slightly different...
After — defined once, used everywhere
from featurize import feature
@feature("user_ltv_30d", version=2)
def user_ltv(events: DataFrame):
return events.groupby("user_id")
.agg(sum("revenue").over(days=30))
# Promote to production:
featurize.promote("user_ltv_30d")← 1 line
Spoke 04 — Field Evidence
Razorpay
Mercari
Grab
Gojek
Swiggy
Cred
Zepto
+140 more
2.3B
Features Served Daily
147
Teams in Production
99.97%
Uptime (12mo)
<3 days
Avg Migration Time

We had 14 different implementations of the same rolling-window feature. After Featurize, we have one. The model performance improvement was a side effect — the real win was deleting 8,000 lines of duplicated Spark code.

Priya Venkataraman profile photo
Priya Venkataraman
Staff ML Engineer · Razorpay

We migrated 230 features in a weekend. Zero serving incidents on Monday. The point-in-time retrieval alone would have saved us three production fires last quarter.

Marcus Delacroix profile photo
Marcus Delacroix
Principal Platform Engineer · Stripe

Our data scientists stopped filing tickets to the platform team. They can define, test, and promote features themselves. That alone freed up 40% of my team's sprint.

Yuki Tanaka profile photo
Yuki Tanaka
Head of ML Platform · Mercari
The math is in. What will you do with it?

Stop rewriting features.
Start shipping models.

Every week you wait, your feature debt compounds. Your best engineers are stuck debugging schema mismatches instead of building the next model. Featurize ends that cycle.

No credit card · No vendor lock-in · Migration support included