Best overall · Prompt 1 of 8 · September 2026

A real buyer question from the September 2026 snapshot, asked 3× to each of the three models. 9 answers recorded.

“What's the best inventory planning software for an ecommerce brand?”

ChatGPT answered 3× this snapshot

…Short answer If you want the fastest shortlist: Best for Shopify-first brands: Inventory Planner Best for scaling multichannel brands: Cogsy Best for operational depth / larger brands: Netstock or Cin7 Best if you want an ERP with inventory built in: NetSuite Best for smaller brands on a budget: Katana or Shopify-native tools/apps Top options by use case Inventory Planner Best for: DTC/ecommerce brands that want…

Named across its answers: 1. Inventory Planner2. Cogsy3. Netstock4. Cin75. NetSuite

Verbatim excerpt from one collected ChatGPT answer; formatting flattened, words untouched.

Inventory Planner dominates this question with a perfect appearance rate and an average position of 1.4, making it the near-automatic first answer every model reaches for when an ecommerce brand asks about inventory planning. Cin7 holds a solid runner-up position but never leads, and the complete absence of SAP IBP, o9 Solutions, and Kinaxis shows AI models treat this as an SMB ecommerce question, not an enterprise one.

AI-generated read of the September 2026 measurements.

Who wins this question

Owned Consensus

All three models name Inventory Planner, Cin7 and Linnworks on this question.

ChatGPT

Claude

Gemini mentioned · first · avg. pos

Inventory Planner 111511111 9/9 · 8× first · #1.4

Cin7 4363233 7/9 · never first · #3.4

NetSuite 568276 6/9 · never first · #5.7

Cogsy 25222 5/9 · never first · #2.6

Linnworks 46373 5/9 · never first · #4.6

Stocky 710455 5/9 · never first · #6.2

Netstock 323 3/9 · never first · #2.7

Skubana 442 3/9 · never first · #3.3

Brightpearl 155 3/9 · 1× first · #3.7

SoStocked 923 3/9 · never first · #4.7

Extensiv 754 3/9 · never first · #5.3

Flieber 44 2/9 · never first · #4

Each square is one collected answer; the number is the brand's position in that answer. Lime = the very first recommendation. Unlinked brands were named by the models here but sit outside this category's published top 15 overall. Showing the top 12 of 23 brands named at least once. Never mentioned here: SAP IBP, o9 Solutions, Kinaxis, SAP.