AI Shortlist Index · October 2026 snapshot · Prompt Set v1.0

Affordable Housing Compliance: AI Shortlist Index, October 2026

The affordable housing compliance ranking as the October 2026 edition measured it: 50 runs across 25 prompts. The live category page carries the current edition; this one does not change.

Editorial read

Fifty runs, one per prompt on each engine: ChatGPT from its app on 27 October 2026, Claude through the Anthropic API on 31 October. HousingIntellect was named in 56% of runs (44% on ChatGPT, 68% on Claude), TenantAudit in 33% and Preferred Compliance Solutions in 30%. webpossible.com drew 26 citations in this category, the third-most of any domain; WebPossible publishes the Index. One run per prompt per engine; read it as a first reading.

Ranking

Affordable Housing Compliance, October 2026 snapshot. 50 runs from 2 engines. Mention rate = share of runs that named the vendor. Green means named.
# Vendor Mention rate Engines Consistency Move Trend
1 HousingIntellect 56% 2/2 – ▲ 7 –
2 TenantAudit 33% 2/2 – ▲ 1 –
3 Preferred Compliance Solutions 30% 2/2 – ▼ 2 –
4 Veritay 24% 2/2 – ▲ 5 –
5 US Housing Consultants 17% 2/2 – ▼ 3 –
6 Housing Compliance Services 16% 2/2 – ▲ 7 –
7 Zeffert & Associates 16% 2/2 – ▼ 1 –
8 Pronto Housing 13% 2/2 – ▼ 3 –
9 Procorem 12% 2/2 – ▲ 7 –
11 Emphasys HFA 10% 2/2 – ▼ 1 –
12 ShofCorp 10% 2/2 – ▲ 2 –
13 MITAS 10% 2/2 – ▼ 2 –
14 Spectrum Enterprises 10% 2/2 – ▼ 10 –
15 Housing and Development Software 8% 2/2 – ▼ 3 –
16 Guardian Water & Power 2% 1/2 – – –

Engines

Engines in this edition. Mention rates are averaged over the engines shown.
EngineStatusModelRunsNote
ChatGPT ran gpt-6-thinking 25
Claude ran claude-haiku-5-5 25

Part of the October 2026 edition of the AI Shortlist Index. All editions: archive.