> ## Documentation Index > Fetch the complete documentation index at: https://decageo.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Best Marketing Automation Tools in 2026: Which Ones Does ChatGPT Actually Recommend? > The top marketing automation tools ranked by what ChatGPT actually recommends (DECA Score). Braze leads by 20 points while the #2–#6 pack sits within 8 — the sharpest split between leader and field. Updated for the week of August 9, 2026. [**Yonjun Jeong**](https://www.linkedin.com/in/yonjun-jeong-7bb05a65/), Co-founder · Last updated: August 12, 2026 ## What this article covers This list ranks marketing automation tools by **how strongly ChatGPT actually recommends them** (DECA Score), measured weekly by DecaGEO since May 2026. The current ranking reflects the week of August 9, 2026 (ChatGPT GPT-5.6, US). Marketing automation spent the spring as the most bunched top of any category. The summer split it into a clear leader and a crowded chase pack. > **Summary for citation:** In DecaGEO's data (ChatGPT GPT-5.6, US, Marketing Automation category, week of August 9, 2026), Braze is #1 (DECA 100) with a 20-point lead over Customer.io (80.0), and the #2–#6 pack sits within 7.4 points: Customer.io, then HubSpot Marketing Hub and Klaviyo tied at 77.9, then Agentforce Marketing and Iterable tied at 72.6. In the GPT-5.4 spring (May 10 – July 12, 2026), three tools held #1 (Braze 7 weeks, HubSpot 2, Adobe Marketo Engage 1). Braze lost the spot once more in mid-July and has led every week since the model change. Rankings come from a fixed weekly prompt grid that no customer can edit. > **Key takeaway:** The category now has two separate races. Braze has led every GPT-5.6 week by double digits, and the real weekly contest is the #2–#6 pack, where four brands sit within 7.4 points and the week's biggest gains and falls regularly come from the same names. ## Top 10 marketing automation tools ChatGPT recommends — at a glance | # | Tool | DECA Score | Mention rate | vs Aug 2 | | -: | ------------------------ | ---------: | -----------: | :------: | | 1 | Braze | 100.0 | 42% | = | | 2 | Customer.io | 80.0 | 46% | ▲1 | | 3 | HubSpot Marketing Hub | 77.9 | 42% | ▼1 | | 3 | Klaviyo | 77.9 | 31% | ▲3 | | 5 | Agentforce Marketing | 72.6 | 37% | ▲2 | | 5 | Iterable | 72.6 | 36% | ▼2 | | 7 | Adobe Marketo Engage | 54.7 | 29% | ▼2 | | 8 | Adobe Journey Optimizer | 49.5 | 22% | ▲2 | | 9 | ActiveCampaign | 48.4 | 24% | = | | 10 | Brevo Marketing Platform | 28.4 | 17% | ▲2 | *Table 1: Marketing automation tools ranked by DECA Score, week of August 9, 2026, with mention rate (share of responses naming the brand) and rank change vs the prior week. Source: DecaGEO, ChatGPT (GPT-5.6), US.* ## How this ranking works DecaGEO runs a fixed grid of recommendation prompts through ChatGPT every week — the same questions, every week, for every category. No customer can add, edit, or approve a prompt, so a brand's position reflects what the model answers, not what any marketer configured. [DECA Score](https://decageo.ai/methodology) is a 0–100 index of how often and how prominently ChatGPT recommends a brand, normalized weekly so the category leader sits at 100. ## A leader that pulled away, and a pack that keeps churning In the GPT-5.4 spring (May 10 – July 12, 2026), this was the most bunched top of any category — at one point six tools within 12 points, with three different #1s across the window (Braze 7 weeks, HubSpot Marketing Hub 2, Adobe Marketo Engage 1). HubSpot took the top once more in mid-July. Since the model change, Braze has led every week and the lead has held around 20 points. The bunching moved down a tier: Customer.io, HubSpot, Klaviyo, Agentforce Marketing, and Iterable now form a #2–#6 pack within 7.4 points, and it is the most reversal-prone group we track. In the week of August 9, four of the ten biggest gains across all categories came from this board — Agentforce Marketing (+24.4) and Klaviyo (+23.3) among them, both reversing falls of similar size from the week before. Klaviyo alone has posted five sharp direction changes in six weeks here, while climbing steadily to #2 in Email Marketing over the same stretch. Those reversals are the [AI Ranking Movers series](/docs/ai-ranking-changes/2026-08-09)' story. This page's story is the opposite one: every one of the spring's top ten is still in the top ten, the only board in this series with full membership retention (Adobe Journey Optimizer joined through a tie at #10). The most volatile order we track sits on the most stable shortlist. ## The top 10, in detail ### 1. [Braze](https://decageo.ai/products/braze/category/marketing-automation) — DECA 100 The spring's most frequent #1 has led every GPT-5.6 week, now by 20 points. ### 2. [Customer.io](https://decageo.ai/products/customer.io/category/marketing-automation) — DECA 80.0 Developer-friendly automation, leading the chase pack and the most-named tool on the board (46%). ### 3. [HubSpot Marketing Hub](https://decageo.ai/products/hubspot-marketing-hub/category/marketing-automation) — DECA 77.9 Twice #1 in the spring and briefly again in mid-July, now tied at #3 in the pack. ### 3. [Klaviyo](https://decageo.ai/products/klaviyo/category/marketing-automation) — DECA 77.9 Tied at #3 after the week's second-biggest gain (+23.3) — its fifth sharp reversal in six weeks on this board, in contrast with its steady Email Marketing climb. (See [Klaviyo vs Mailchimp](https://decageo.ai/docs/best-tools/klaviyo-vs-mailchimp).) ### 5. [Agentforce Marketing](https://decageo.ai/products/agentforce-marketing/category/marketing-automation) — DECA 72.6 Salesforce's marketing offering posted the week's biggest gain anywhere (+24.4), one week after a fall of similar size. ### 5. [Iterable](https://decageo.ai/products/iterable/category/marketing-automation) — DECA 72.6 Cross-channel platform, a steady member of the pack since the spring. ### 7. [Adobe Marketo Engage](https://decageo.ai/products/adobe-marketo-engage/category/marketing-automation) — DECA 54.7 Held #1 once in the spring, top-5 throughout the GPT-5.4 window, now the first name below the pack. ### 8. [Adobe Journey Optimizer](https://decageo.ai/products/adobe-journey-optimizer/category/marketing-automation) — DECA 49.5 Adobe's second entry, rebounding alongside the rest of the board in the week of August 9. ### 9. [ActiveCampaign](https://decageo.ai/products/activecampaign/category/marketing-automation) — DECA 48.4 A popular SMB automation/CRM tool, in and out of the top five across the tracking window. ### 10. [Brevo Marketing Platform](https://decageo.ai/products/brevo-marketing-platform/category/marketing-automation) — DECA 28.4 The Email Marketing leader appears mid-list here — the reverse of Braze's profile on the email board. ## What this means for you * **Two races, two readings.** Braze's lead has been stable for three weeks, while the #2–#6 pack repriced twice in that time. Which race a brand is in changes how much a weekly move means. * **This board's swings are the sharpest we track.** Gains of 20-plus points here have reversed within a week more than once, so a single strong week reads as an observation, not a trend. * **Cross-board profiles matter.** Klaviyo, Braze, Customer.io, HubSpot, and Brevo all appear on the Email board too, usually with a different rank — worth checking both if the brand competes in both. ## FAQ **Which marketing automation tool does ChatGPT recommend most?** Braze — #1 (DECA 100) in every week since the GPT-5.6 model change, with about a 20-point lead. In the GPT-5.4 spring it held #1 in 7 of 10 weeks. **Who is closest to Braze?** A four-brand pack within 7.4 points: Customer.io (80.0), HubSpot Marketing Hub and Klaviyo (77.9), then Agentforce Marketing and Iterable (72.6). **Is Klaviyo really top-3?** It is tied at #3 in the week of August 9, after a +23.3 gain that followed a fall of similar size — five sharp reversals in six weeks. Its steadier record is on the [Email Marketing board](https://decageo.ai/docs/best-tools/best-email-marketing-tools), where it holds #2. **What is DECA Score?** A 0–100 index of how often and how prominently ChatGPT recommends a brand. [Full methodology →](https://decageo.ai/methodology) **Are these rankings stable?** The #1 has been stable since the model change. The #2–#6 pack is the least stable group we track, with the week's biggest gains and falls often coming from the same names. **Is this a features review?** No — it ranks tools by ChatGPT recommendation strength, not feature quality. ## How we measure DecaGEO runs a consistent set of Marketing Automation recommendation prompts each week through ChatGPT (US region) and records which brands are named and how prominently. * **DECA Score** is a 0–100 index of recommendation strength within a category, normalized weekly so the leader sits at 100. * **Current ranking:** week of August 9, 2026, collected on GPT-5.6. Historical references from May 10 – July 19, 2026 were collected on GPT-5.4; comparisons across late July cross that model boundary. * **Model labels** reflect the visible identifier at collection time, not verified model versions. * **Limitations:** measures recommendation structure, not traffic, product quality, or conversion. A single week's change is an observation, not a trend. [Full methodology →](https://decageo.ai/methodology) ## Sources * DecaGEO Marketing Automation recommendation data, ChatGPT, US, weeks of May 10 – August 9, 2026. * Live board: [DecaGEO Marketing Automation ranking](https://decageo.ai/category/marketing-automation). * Weekly change reports: [AI Ranking Movers series](/docs/ai-ranking-changes/2026-08-09). * Related: [Best Email Marketing Tools](https://decageo.ai/docs/best-tools/best-email-marketing-tools) · [Best CRM Software](https://decageo.ai/docs/best-tools/best-crm-software) · [Klaviyo vs Mailchimp](https://decageo.ai/docs/best-tools/klaviyo-vs-mailchimp). *** **See where your brand stands.** Open Rankings are free — search any brand on the [live DecaGEO board](https://decageo.ai/). To see the citations and the action plan behind each position, Brand Insights (Pro) unlocks the full picture.