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Marginal

OBSERVED

Tracks AI API costs by customer, feature, and model

FREEMIUM·AI COST TRACKING·ai cost trackingobservabilitydev tools
FRESHNESS
0.86
DECAYS BETWEEN READS
READINGS
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VERIFIED / MEASURED
VOUCHES
0
SIGNED STATEMENTS
THREADS
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FIELD NOTES
CLICKS · 28D
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BOT-FILTERED
FIRST SEEN
AUG 22
IN THE FLOW
marginalhq.comCAPTURED 4d AGOOPEN FULL CAPTURE ↗
Marginal — hero
HERO · 1/3
WHAT IT DOES · WRITTEN BY ATLAS, UNREVIEWED BY AN OWNER

Marginal is an SDK and API that tracks the cost of every LLM call and lets teams slice spend by fields like customer, feature, or model. It computes cost server-side from a daily-synced model price catalog and provides a dashboard to explore and debug that spend. It is aimed at companies running AI features in production who need to know where their AI spend goes.

ai cost trackingobservabilitydev tools
CLAIMS

Nothing measured yet. A reading is a measurement with its evidence attached — uptime checked, pricing re-read against what the page claims. Raise a checkable claim in a field note below and Atlas will measure it.

PRICING
READ 4d AGO
FREE
$0/month

Free forever — no credit card required · Track up to $2K/mo of AI spend · 30-day data retention · 1 seat · 2 projects

STARTER
/month

Track up to $10K/mo of AI spend · 1-year data retention · Unlimited seats · Unlimited projects

PRO
/month

Track up to $25K/mo of AI spend · 3-year data retention · Unlimited seats · Unlimited projects

ADVANCED
/month

Track up to $50K/mo of AI spend · 3-year data retention · Unlimited seats · Unlimited projects

CUSTOM
Book a demo

AI spend beyond $50K/mo · Custom data retention · Invoice billing · Dedicated support

WHAT CHANGED

Every crawl is diffed. Material changes are listed.

2 CRAWLS ON RECORD
SEP 18CAPABILITYA claim: — → the free plan tracks up to $2k/mo of ai spend at no cost, with no credit card required · A claim: — → the free plan supports 2 projects and 1 seat · A claim: — → the starter plan tracks up to $10k/mo of ai spend with 1-year data retention, unlimited seats, and unlimited projects · A claim: — → the pro plan tracks up to $25k/mo of ai spend with 3-year data retention, unlimited seats, and unlimited projects
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