The DecaGEO Blog
Insights & Playbooks
Weekly data on the brands AI recommends — and the playbooks behind the rankings.
AI Ranking Movers — Week of October 18
Jira took #1 from ClickUp on DecaGEO's Project Management board, week of October 18, 2026. ChatGPT named ClickUp in 42 of 79 answers, Jira in 32.
AI Ranking Movers — Week of October 11
In the week of October 11, 2026, the #2 brand was named in more ChatGPT answers than the #1 on three of DecaGEO's ten boards: Marketing Automation, Help Desk and Influencer Marketing.
AI Ranking Movers — Week of October 4
No ChatGPT category #1 changed on DecaGEO's ten boards in the week of October 4, 2026, a first on record, and three brands that rose a week earlier lost rank.
AI Ranking Movers — Week of September 27
Two of ten ChatGPT category #1s changed hands in DecaGEO's week of September 27, 2026 data, both to a brand named in fewer responses than the one it passed.
AI Ranking Movers — Week of September 20
Two of ten ChatGPT category leaders changed hands in the week of September 20, 2026, and DecaGEO's closest race, ties aside, came down to one prominence point.
AI Ranking Movers — Week of September 13
ChatGPT's category leaders mostly held in the week of September 13, 2026, but eight of ten races tightened and CRM changed hands. DecaGEO's weekly AI recommendation index covers 10 software categories, with the prominence totals behind every gap.
AI Ranking Movers — Week of September 6
Seventh week on GPT-5.6: one of ten category #1s changed hands, and the boards that were close a week earlier stopped being close. The median #1-to-#2 DECA gap more than doubled from 10.6 to 23.2 points, and single-digit races fell from four to one.
AI Ranking Movers — Week of August 30
Sixth week on GPT-5.6: both of last week's top-line changes rolled back — Dynamics 365 Sales retook CRM after HubSpot's one-week reign, and the Help Desk tie resolved back to Zendesk Suite — while ClickUp logged only the second back-to-back #1 hold of the GPT-5.6 era. Klaviyo cut the Email mention-r…
AI Ranking Movers — Week of August 23
Fifth week on GPT-5.6: HubSpot Sales Hub ended Dynamics 365 Sales' six-week CRM run, ClickUp retook Project Management for the board's fourth #1 change in five weeks, and Freshdesk pulled level with Zendesk Suite at the top of Help Desk. Semrush reset the closest race on the index, widening its GEO…
AI Ranking Movers — Week of August 16
Fourth week on GPT-5.6: nine of ten #1s held while Project Management flipped again (Jira retook the top from ClickUp), and the GEO board reignited — Semrush's lead shrank from 20.2 to 2.0 points as GEO tools took four of the week's five biggest gains. Volatility stayed below 10% for a third straigh…
AI Ranking Movers — Week of August 9
Third week on GPT-5.6: three category #1s changed hands in the quietest week we have tracked — ClickUp took Project Management from Jira, CreatorIQ retook Influencer Marketing from Aspire, and Semrush retook GEO after Profound's one-week reign. Klaviyo's Email challenge receded, the recommendation s…
AI Ranking Movers — Week of August 2
Second week on GPT-5.6: Profound took GEO #1 from Semrush (a first in our tracking), the smaller recommendation set held (399 → 421, still below the GPT-5.4 range), all three new #1s from the model change defended their spots, and Klaviyo closed within 1 point of Email's top. Volatility hit a tracke…
AI Ranking Movers — Week of July 26
First week on GPT-5.6: three of ten category #1s changed hands (the most in any tracked week), the recommendation set fell below its GPT-5.4 range (445 → 399, GEO 90 → 39), and general-purpose AI assistants surged in AI Writing. Every difference is read against the GPT-5.4 band, not claimed as cause…
AI Ranking Movers — Week of July 19
This week in ChatGPT's software recommendations: HubSpot Marketing Hub took the Marketing Automation #1 from Braze, GEO rebounded from 74 to 90 brands with Scrunch AI up +47.2, and the CRM #1 stopped flipping — the final weekly report on GPT-5.4.
AI Ranking Movers — Week of July 12
This week in ChatGPT's software recommendations: Marketing Automation's mid-tier surged together (Klaviyo +33.9) leaving Braze just 2 points ahead, GEO contracted from 99 to 74 brands, and the CRM #1 flipped for a fourth straight week.
AI Ranking Movers — Jul 5, 2026
This week in ChatGPT's software recommendations: GEO reversed again, CRM's #1 flipped for a third straight week, and the tracked set pulled back.
AI Ranking Movers — Jun 28, 2026
This week in ChatGPT's software recommendations: GEO surgers split, the CRM #1 changed hands again, and Marketing Automation flipped back to Braze.
AI Ranking Movers — Jun 21, 2026
This week in ChatGPT's software recommendations: Profound surged +63.3 to reshape GEO's top, Zoho CRM took the CRM #1 spot, and last week's biggest gainer gave it back.
AI Ranking Movers — Week of June 14
This week in ChatGPT's software recommendations: Agentforce Marketing surged +22.6, HubSpot Sales Hub climbed in CRM, and the tracked set widened to 473 brands.
AI Ranking Movers — Week of June 7
This week in AI rankings: HubSpot AEO surged 43 spots in GEO, Claude entered the AI Writing Top 10, and local-SEO tools climbed. See every category's risers, drops, and new entries.
