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Meeting scheduling · October 2026 Edition

Cal.com vs OnceHub

Zero of fourteen models named Cal.com first on the direct prompt; zero named OnceHub. Cal.com was named by eleven of the fourteen models and OnceHub by seven and Cal.com carries 29 labels and OnceHub 10, so the shares are not directly comparable.

Cal.com

accepted challenger

Named in three categories this edition.

OnceHub

accepted challenger

Named in one category this edition.

First-choice share3%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#6A position in a field of 12; printed, not drawn.
Labels2910A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Cal.com reading right to left. Rank and label count are printed, not drawn.Calendly was named alongside these two in twelve of the fourteen direct answers. Calendly vs Cal.com · Calendly vs OnceHub · Chili Piper vs Cal.com

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the meeting scheduling page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
Cal.comFirst choices, of fourteen modelsOnceHub
Direct00
Paraphrase01
Comparative10
Budget-constrained20
Scale-constrained00
Negative20
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, Cal.com and OnceHub were named in the same answer fourteen times, of the 113 answers naming Cal.com and the 25 naming OnceHub. In those answers OnceHub took the first choice one time and Cal.com two.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Cal.com and OnceHub stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Cal.com OnceHub first choice named as an alternative argued againstblank: not namedEach cell is one answer, Cal.com on the left and OnceHub on the right.

The direct prompt

The plain question, one answer per model, grouped by where Cal.com and OnceHub stood in it.

Neither was the first choice, one was named

3 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Chili Piper alternatives: Cal.com, Calendly, HubSpot Meetings, RevenueHero
Perplexity SonarCalendly, Chili Piper alternatives: Cal.com, HubSpot Meetings, HubSpot Sales Hub
DeepSeek V4 FlashCalendly alternatives: HubSpot Meetings, OnceHub

Neither was named

11 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniChili Piper, HubSpot Meetings alternatives: Calendly
Gemini 3.5 FlashRevenueHero alternatives: Calendly, Default, LeanData BookIt
Grok 4.1 FastChili Piper alternatives: Calendly, Default, HubSpot Meetings, RevenueHero, SavvyCal
Mistral SmallChili Piper alternatives: HubSpot Meetings, SavvyCal
Llama 4 MaverickHubSpot Sales Hub
Qwen 3.7 FlashChili Piper alternatives: Calendly
Kimi K2RevenueHero alternatives: Calendly, HubSpot Meetings
GLM 4.7 FlashXChili Piper alternatives: Calendly, HubSpot Meetings
MiniMax M2.5Chili Piper, HubSpot Sales Hub alternatives: Calendly, Salesforce Sales Cloud
GPT-6 LunaCalendly alternatives: Chili Piper, HubSpot Meetings, RevenueHero
Muse Glimmer 30BChili Piper, ChiliCal alternatives: Calendly, HubSpot Meetings

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Cal.com leads by eight points.
Cal.com8%#3 of 11
OnceHub0%#– of 11
The full small business standing →
Mid-marketThe figures above
Cal.com leads by two points.
Cal.com3%#4 of 12
OnceHub2%#6 of 12
The full mid-market standing →
Enterprise
Cal.com leads by eight points.
Cal.com8%#3 of 7
OnceHub0%#– of 7
The full enterprise standing →

What the models said about Cal.com

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.

“Start with Cal.com if you need: Team features and routing on a budget” Kimi K2 · budget prompt · first choice
“Prioritize open-source like Cal.com for full control/privacy.” Grok 4.1 Fast · negative prompt · first choice
“Cal.com — best overall flexible / open source alternative” Muse Glimmer 30B · comparative prompt · first choice

What the models said about OnceHub

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.

“I'd prioritize OnceHub if you need advanced lead routing and qualification features” Claude Haiku 4.5 · paraphrase prompt · first choice
“If your scheduling needs are especially complex (multi-department routing, high booking volumes), I'd lean toward OnceHub” DeepSeek V4 Flash · paraphrase prompt · alternative
“Advanced routing and qualification flows; good for complex scheduling scenarios” Kimi K2 · comparative prompt · alternative
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.