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Professional services automation · October 2026 Edition

BigTime vs Accelo

Three of fourteen models named BigTime first on the direct prompt; zero named Accelo. BigTime was named by fourteen of the fourteen models and Accelo by twelve and BigTime carries 48 labels and Accelo 25, so the shares are not directly comparable.

BigTime

accepted challenger

Named in three categories this edition.

Accelo

accepted challenger

Named in one category this edition.

First-choice share29%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate4%4%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#6A position in a field of 10; printed, not drawn.
Labels4825A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, BigTime reading right to left. Rank and label count are printed, not drawn.Kantata was named alongside these two in thirteen of the fourteen direct answers. BigTime vs Kantata · BigTime vs Productive · BigTime vs Rocketlane

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 professional services automation page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
BigTimeFirst choices, of fourteen modelsAccelo
Direct30
Paraphrase102
Comparative00
Budget-constrained20
Scale-constrained00
Negative102 against BigTime · 1 against Accelo
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, BigTime and Accelo were named in the same answer forty-nine times, of the 125 answers naming BigTime and the 63 naming Accelo. In those answers Accelo took the first choice zero times and BigTime twenty-four.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where BigTime and Accelo 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
BigTime Accelo first choice named as an alternative argued againstblank: not namedEach cell is one answer, BigTime on the left and Accelo on the right.

The direct prompt

The plain question, one answer per model, grouped by where BigTime and Accelo stood in it.

BigTime first, Accelo an alternative

3 of 14 modelsAccelo was named in the answer but not as the choice, or not at all.
Grok 4.1 FastBigTime alternatives: Accelo, Autotask, Kantata, Scoro
DeepSeek V4 FlashBigTime alternatives: Accelo, Certinia PS Cloud, Kantata, Scoro
Kimi K2BigTime, Kantata alternatives: Accelo, Certinia Professional Services Cloud, Scoro

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Kantata alternatives: Accelo, BigTime, Certinia Professional Services Cloud, Scoro
Perplexity SonarKantata alternatives: Accelo, Birdview, Rocketlane, Ruddr
Qwen 3.7 FlashKantata alternatives: Accelo, Scoro
GLM 4.7 FlashXKantata alternatives: BigTime, Scoro
GPT-6 LunaKantata OX alternatives: BigTime, Certinia Professional Services Cloud, Rocketlane

Neither was named

6 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniKantata alternatives: Certinia Professional Services Cloud, Productive, Scoro
Gemini 3.5 FlashRocketlane alternatives: Certinia Professional Services Cloud, Kantata, Scoro
Mistral SmallKantata, Rocketlane alternatives: SAP S/4HANA
Llama 4 MaverickKantata alternatives: Scoro
MiniMax M2.5Kantata alternatives: Avaza, Certinia Professional Services Cloud, Rocketlane, Upland PSA
Muse Glimmer 30BKantata alternatives: Birdview, Deltek Vantagepoint, Scoro

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
BigTime leads by thirty-eight points.
BigTime38%#1 of 11
Accelo0%#10 of 11
The full small business standing →
Mid-marketThe figures above
BigTime leads by twenty-five points.
BigTime29%#1 of 10
Accelo4%#6 of 10
The full mid-market standing →
Enterprise
BigTime leads by five points.
BigTime5%#3 of 11
Accelo0%#– of 11
The full enterprise standing →

What the models said about BigTime

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

“BigTime is compatible with QuickBooks but not 100%, with a lot of work still to be done in that area” Claude Haiku 4.5 · negative prompt · soft negative
“Productive advises skipping it if you are heading past 50 billable staff.” Perplexity Sonar · negative prompt · soft negative
“the most highly recommended PSA tool for a mid-sized B2B company focused specifically on project billing and utilization is BigTime” Qwen 3.7 Flash · paraphrase prompt · first choice
“Teamwork.com from ~$9.99/user/mo and BigTime Essentials from ~$20/user/mo are the most frequently cited budget-friendly options” Muse Glimmer 30B · budget prompt · first choice
“BigTime and Accelo are top recommendations due to their strong billing, utilization, and project management features” Mistral Small · paraphrase prompt · first choice

What the models said about Accelo

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

“Some users report slow onboarding, poor support, and billing issues” Claude Haiku 4.5 · negative prompt · soft negative
“I'd recommend starting with BigTime or Accelo” MiniMax M2.5 · paraphrase prompt · first choice
“BigTime and Accelo are top recommendations” Mistral Small · paraphrase prompt · first choice
“Best for: Small-to-midsize boutique services firms looking for a "quote-to-cash" automated workflow.” Gemini 3.5 Flash · 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.