# Chili Piper vs Cal.com: which do AI models recommend for scheduling, September 2026

GTM AI Recommendation Index, September 2026 Edition, Meeting scheduling. One of twelve models named Chili Piper first on the direct prompt; zero named Cal.com. Page: https://gtm-ai-index.com/sales/meeting-scheduling/chili-piper-vs-cal-com/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Chili Piper | 12% | #3 of 9 | 21% | 34 | 12 of 12 |
| Cal.com | 4% | #4 of 9 | 0% | 36 | 11 of 12 |

## The direct prompt, model by model

- Qwen 3.7 Flash: chili piper first (first choices: Calendly, Chili Piper) (alternatives: Topmate / Scheduling.link)
- Claude Haiku 4.5: neither first, one named (first choices: Calendly) (alternatives: Chili Piper, HubSpot Meetings)
- GPT-5.4 mini: neither first, one named (first choices: HubSpot Meetings, HubSpot Sales Hub) (alternatives: Calendly, Chili Piper)
- Gemini 3.5 Flash: neither first, one named (first choices: RevenueHero) (alternatives: Calendly, Chili Piper, HubSpot Meetings, LeanData BookIt)
- Perplexity Sonar: neither first, one named (first choices: HubSpot Sales Hub) (alternatives: Calendly, Chili Piper)
- Grok 4.1 Fast: neither first, one named (first choices: Calendly) (alternatives: Cal.com, Chili Piper, HubSpot Meetings)
- Mistral Small: neither first, one named (first choices: Calendly) (alternatives: Chili Piper, HubSpot Meetings, RevenueHero)
- DeepSeek V4 Flash: neither first, one named (first choices: Calendly, HubSpot Meetings) (alternatives: Cal.com, RevenueHero)
- Kimi K2: neither first, one named (first choices: Calendly) (alternatives: Cal.com, Chili Piper, HubSpot Meetings, SavvyCal)
- GLM 4.7 FlashX: neither first, one named (first choices: Calendly) (alternatives: Cal.com, Chili Piper, HubSpot Meetings, SavvyCal, YouCanBookMe)
- MiniMax M2.5: neither first, one named (first choices: Calendly) (alternatives: Cal.com, Chili Piper, HubSpot Meetings, RevenueHero)
- Llama 4 Maverick: neither named (first choices: HubSpot Sales Hub) (alternatives: ZoomInfo GTM Workspace)

## What the models said about Chili Piper

- "Avoid These for Mid-Market - Chili Piper: Now starts at $15,000/year minimum ... overkill for most mid-sized companies" (Kimi K2, paraphrase prompt, hard negative)
- "If you have >500 inbound leads/month and use Salesforce: Start a trial of Chili Piper. The speed-to-lead advantage at scale usually outweighs the cost." (Qwen 3.7 Flash, direct prompt, first choice)
- "The gold standard for form-to-routing automation. Deep CRM integration; ideal if you drive massive inbound volume via forms. Higher cost." (Qwen 3.7 Flash, scale prompt, first choice)
- "Chili Piper: *Best for complex B2B sales routing.* ... Chili Piper is the enterprise standard." (Gemini 3.5 Flash, scale prompt, first choice)

## What the models said about Cal.com

- "Start with Cal.com Free if you have technical capacity or want the most generous free tier with unlimited bookings." (Kimi K2, budget prompt, first choice)
- "Cal.com (Best Overall Value & Scalability)" (Gemini 3.5 Flash, budget prompt, first choice)
- "Cal.com (open-source, self-host)" (Grok 4.1 Fast, negative prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.