# Meeting scheduling for enterprise buyers: what AI models recommend, September 2026

GTM AI Recommendation Index, September 2026 Edition. Asked as "meeting scheduling tool for sales teams" and as "appointment scheduling software", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://gtm-ai-index.com/sales/meeting-scheduling/enterprise/

**Standing:** Calendly leads with 52% of first choices; verdict clear leader. 46 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Calendly | 52% | 17% | 59 |
| 2 | Chili Piper | 20% | 21% | 47 |
| 3 | Microsoft Bookings | 11% | 8% | 25 |
| 4 | Cal.com | 7% | 3% | 32 |
| 5 | HubSpot Meetings | 2% | 26% | 23 |
| 6 | RevenueHero | 2% | 8% | 12 |
| 7 | Doodle | 0% | 67% | 12 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: no first choice
- GPT-5.4 mini: Chili Piper; alternatives Calendly, Salesloft Meetings
- Gemini 3.5 Flash: Chili Piper, RevenueHero; alternatives Cal.com, Default, NC Squared
- Perplexity Sonar: Chili Piper; alternatives Cal.com, HubSpot Meetings, LeanData BookIt, RevenueHero
- Grok 4.1 Fast: Chili Piper; alternatives Calendly
- Mistral Small: Chili Piper; alternatives Calendly, HubSpot Meetings, RevenueHero
- DeepSeek V4 Flash: Chili Piper; alternatives Calendly, Outreach, Salesloft, ZoomInfo GTM Workspace
- Llama 4 Maverick: Calendly; alternatives HubSpot Meetings, ZoomInfo GTM Workspace
- Qwen 3.7 Flash: Calendly; alternatives Chili Piper, RevenueHero
- Kimi K2: Calendly; alternatives Chili Piper, HubSpot Meetings, RevenueHero, ZoomInfo GTM Workspace
- GLM 4.7 FlashX: Calendly; alternatives 11x, Cal.com, Chili Piper
- MiniMax M2.5: Calendly, Chili Piper; alternatives Cirrus Insight, HubSpot Meetings, RevenueHero

## Sources the answers cite

22 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers:

- guideflow.com: 8 answers, 11 citations
- cal.com: 7 answers, 9 citations
- leadangel.com: 7 answers, 7 citations
- revenuehero.io: 7 answers, 7 citations
- calendly.com: 6 answers, 11 citations
- albato.com: 6 answers, 6 citations
- youcanbook.me: 5 answers, 6 citations
- cleverly.co: 5 answers, 5 citations

Pages named in the most answers:

- https://leadangel.com/blog/operations/enterprise-scheduling-software (7 answers)
- https://revenuehero.io/blog/best-meeting-scheduling-software (7 answers)
- https://albato.com/blog/publications/best-appointment-scheduling-software-sales-pipeline (6 answers)
- https://cal.com/blog/enterprise-scheduling-software (5 answers)
- https://cleverly.co/blog/appointment-scheduling-software (5 answers)
- https://peoplemanagingpeople.com/tools/best-meeting-scheduling-software (5 answers)
- https://guideflow.com/blog/business-scheduling-software-tools (4 answers)
- https://guideflow.com/blog/online-appointment-scheduling-software-tools (4 answers)
- https://marketbetter.ai/blog/best-meeting-scheduling-software-sales-teams-2026 (4 answers)
- https://ronspotflexwork.com/blog/business-scheduling-tools (4 answers)

## Warned against

- Chili Piper: 10 of 47 labels negative. "transitioned to a model that charges a high base platform fee ($15k+/year) plus additional fees... makes financial forecasting difficult" (Qwen 3.7 Flash, budget prompt)
- Doodle: 8 of 12 labels negative. ""Consumer-First" Polling Tools (e.g., Doodle) ... Why to avoid: These platforms frequently lack Business Associate Agreements (BAAs)" (Qwen 3.7 Flash, negative prompt)
- Calendly: 10 of 59 labels negative. "What to avoid: Individual, free, or basic paid plans of popular schedulers (e.g., standard Calendly, Doodle...)" (Gemini 3.5 Flash, negative prompt)
- HubSpot Meetings: 6 of 23 labels negative. "including standard tiers of Calendly, HubSpot Meetings, and Microsoft Bookings) run background tracking scripts" (Gemini 3.5 Flash, negative prompt)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.