Proprietary engine

Cost-Bisect

Name: CARTIE AI
Author: CARTIE AI

The git bisect of cost regressions. Walk commit history to find the exact PR where your bill jumped.

Every commit on main carries a cost-state snapshot. When your bill spikes, cartie cost-bisect HEAD~50 HEAD walks the range and surfaces the offending commit in seconds.

Run a bisect

Find the first commit in the range whose cost-delta exceeded the threshold.

From commit

To commit

Threshold ($)

Commit cost timeline

50 commits from the demo seed · regression deliberately planted at commit #38 for testing.

8e56b730f

fix: tighten S3 lifecycle on logs-archive

lakshmi.kiranmai · Jan 26, 02:00 PM

$12.4K

$0.00

248ecec67

feat: add embedding endpoint for /search

deva.k · Jan 27, 01:23 AM

$12.4K

+$38.50

7f0b79c1d

chore: bump claude-sonnet model version

priya.s · Jan 27, 12:46 PM

$12.5K

+$38.50

a2b892767

fix: drop unused EBS gp2 snapshots

rahul.m · Jan 27, 11:09 PM

$12.5K

+$38.50

a400462c5

feat: enable streaming in /chat

ankita.r · Jan 28, 10:32 AM

$12.6K

+$38.50

9ea5bd369

perf: switch /classify to claude-haiku

lakshmi.kiranmai · Jan 28, 09:55 PM

$12.7K

+$98.50

c6a6ab765

feat: add per-customer feature P&L

deva.k · Jan 29, 08:18 AM

$12.7K

+$38.50

fc864fdac

chore: enable AWS S3 Intelligent-Tiering

priya.s · Jan 29, 07:41 PM

$12.6K

-$87.50

accb2c309

fix: rightsizing m5.xlarge → m5.large

rahul.m · Jan 30, 06:04 AM

$12.6K

+$38.50

c2f2f3997

feat: introduce decision simulator

ankita.r · Jan 30, 05:27 PM

$12.7K

+$38.50

2f03980e8

feat: add 3 new SaaS connectors

lakshmi.kiranmai · Jan 31, 04:50 AM

$12.8K

+$98.50

7a1a96b39

fix: drop Snowflake warehouse XS on weekends

deva.k · Jan 31, 03:13 PM

$12.8K

+$38.50

c1173ea72

feat: introduce token leak detector

priya.s · Feb 1, 02:36 AM

$12.9K

+$38.50

e7c823d61

feat: ship multi-model smart router

rahul.m · Feb 1, 01:59 PM

$12.9K

+$38.50

c028c8834

perf: add prompt-cache markers

ankita.r · Feb 2, 12:22 AM

$12.8K

-$87.50

9396f8c35

feat: add cost-bisect (this one)

lakshmi.kiranmai · Feb 2, 11:45 AM

$12.9K

+$98.50

843b8831e

fix: tighten S3 lifecycle on logs-archive

deva.k · Feb 2, 10:08 PM

$12.9K

+$38.50

98a265837

feat: add embedding endpoint for /search

priya.s · Feb 3, 09:31 AM

$13.0K

+$38.50

5fd75a89f

chore: bump claude-sonnet model version

rahul.m · Feb 3, 08:54 PM

$13.0K

+$38.50

36a29259b

fix: drop unused EBS gp2 snapshots

ankita.r · Feb 4, 07:17 AM

$13.1K

+$38.50

eee8a5138

feat: enable streaming in /chat

lakshmi.kiranmai · Feb 4, 06:40 PM

$13.2K

+$98.50

f7bef593a

perf: switch /classify to claude-haiku

deva.k · Feb 5, 05:03 AM

$13.1K

-$87.50

d52ef9f11

feat: add per-customer feature P&L

priya.s · Feb 5, 04:26 PM

$13.1K

+$38.50

f846e3b70

chore: enable AWS S3 Intelligent-Tiering

rahul.m · Feb 6, 03:49 AM

$13.1K

+$38.50

d433629bf

fix: rightsizing m5.xlarge → m5.large

ankita.r · Feb 6, 02:12 PM

$13.2K

+$38.50

4a4b29b29

feat: introduce decision simulator

lakshmi.kiranmai · Feb 7, 01:35 AM

$13.3K

+$98.50

4e9a5daae

feat: add 3 new SaaS connectors

deva.k · Feb 7, 12:58 PM

$13.3K

+$38.50

d432ff49e

fix: drop Snowflake warehouse XS on weekends

priya.s · Feb 7, 11:21 PM

$13.4K

+$38.50

2ec684350

feat: introduce token leak detector

rahul.m · Feb 8, 10:44 AM

$13.3K

-$87.50

0ee34c34b

feat: ship multi-model smart router

ankita.r · Feb 8, 09:07 PM

$13.3K

+$38.50

17c192ab6

perf: add prompt-cache markers

lakshmi.kiranmai · Feb 9, 08:30 AM

$13.4K

+$98.50

fba5e64ac

feat: add cost-bisect (this one)

deva.k · Feb 9, 07:53 PM

$13.4K

+$38.50

1561b8c5e

fix: tighten S3 lifecycle on logs-archive

priya.s · Feb 10, 06:16 AM

$13.5K

+$38.50

101307594

feat: add embedding endpoint for /search

rahul.m · Feb 10, 05:39 PM

$13.5K

+$38.50

2a79645dd

chore: bump claude-sonnet model version

ankita.r · Feb 11, 04:02 AM

$13.6K

+$38.50

f32392f79

fix: drop unused EBS gp2 snapshots

lakshmi.kiranmai · Feb 11, 03:25 PM

$13.5K

-$27.50

0e2cdbfc1

feat: enable streaming in /chat

deva.k · Feb 12, 02:48 AM

$13.6K

+$38.50

ac441d5e6

perf: switch /classify to claude-haiku

priya.s · Feb 12, 01:11 PM

$13.6K

+$38.50

f12d97ad3

feat: ship 24/7 streaming inference on /chat endpoint

rahul.m · Feb 13, 12:34 AM

$17.9K

+$4.3K

c10a27c71

chore: enable AWS S3 Intelligent-Tiering

ankita.r · Feb 13, 11:57 AM

$18.0K

+$83.50

1f250a317

fix: rightsizing m5.xlarge → m5.large

lakshmi.kiranmai · Feb 13, 10:20 PM

$18.1K

+$143.50

eba99cb94

feat: introduce decision simulator

deva.k · Feb 14, 09:43 AM

$18.2K

+$83.50

22bb9bcb4

feat: add 3 new SaaS connectors

priya.s · Feb 14, 08:06 PM

$18.2K

-$42.50

5ca786ead

fix: drop Snowflake warehouse XS on weekends

rahul.m · Feb 15, 07:29 AM

$18.2K

+$83.50

6e384b515

feat: introduce token leak detector

ankita.r · Feb 15, 06:52 PM

$18.3K

+$83.50

d892f3e20

feat: ship multi-model smart router

lakshmi.kiranmai · Feb 16, 05:15 AM

$18.5K

+$143.50

3e68ca1e9

perf: add prompt-cache markers

deva.k · Feb 16, 04:38 PM

$18.6K

+$83.50

5d3c5e8d7

feat: add cost-bisect (this one)

priya.s · Feb 17, 03:01 AM

$18.6K

+$83.50

70a1c812a

fix: tighten S3 lifecycle on logs-archive

rahul.m · Feb 17, 02:24 PM

$18.7K

+$83.50

17b8c1106

feat: add embedding endpoint for /search

ankita.r · Feb 18, 01:47 AM

$18.7K

-$42.50

1 · Every commit gets a snapshot

A 30-line GitHub Action computes the projected monthly cost-state from your IaC + traffic profile, on every push to main.

2 · We index by SHA

Snapshots are persisted per-tenant, queryable by commit SHA range. No source code leaves your repo — only the cost-state lands here.

3 · Bisect when bill spikes

cartie cost-bisect HEAD~50 HEAD --threshold 1500 returns the exact commit that broke margin.

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