# BigTime vs Productive: which do AI models recommend for PSA, October 2026

Finance AI Recommendation Index, October 2026 Edition, Professional services automation. Three of fourteen models named BigTime first on the direct prompt; zero named Productive. Page: https://finance-ai-index.com/receivables/professional-services-automation/bigtime-vs-productive/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| BigTime | 29% | #1 of 10 | 4% | 48 | 14 of 14 |
| Productive | 12% | #3 of 10 | 0% | 23 | 12 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: bigtime first (first choices: BigTime) (alternatives: Accelo, Autotask, Kantata, Scoro)
- DeepSeek V4 Flash: bigtime first (first choices: BigTime) (alternatives: Accelo, Certinia PS Cloud, Kantata, Scoro)
- Kimi K2: bigtime first (first choices: BigTime, Kantata) (alternatives: Accelo, Certinia Professional Services Cloud, Scoro)
- Claude Haiku 4.5: neither first, one named (first choices: Kantata) (alternatives: Accelo, BigTime, Certinia Professional Services Cloud, Scoro)
- GPT-5.4 mini: neither first, one named (first choices: Kantata) (alternatives: Certinia Professional Services Cloud, Productive, Scoro)
- GLM 4.7 FlashX: neither first, one named (first choices: Kantata) (alternatives: BigTime, Scoro)
- GPT-6 Luna: neither first, one named (first choices: Kantata OX) (alternatives: BigTime, Certinia Professional Services Cloud, Rocketlane)
- Gemini 3.5 Flash: neither named (first choices: Rocketlane) (alternatives: Certinia Professional Services Cloud, Kantata, Scoro)
- Perplexity Sonar: neither named (first choices: Kantata) (alternatives: Accelo, Birdview, Rocketlane, Ruddr)
- Mistral Small: neither named (first choices: Kantata, Rocketlane) (alternatives: SAP S/4HANA)
- Llama 4 Maverick: neither named (first choices: Kantata) (alternatives: Scoro)
- Qwen 3.7 Flash: neither named (first choices: Kantata) (alternatives: Accelo, Scoro)
- MiniMax M2.5: neither named (first choices: Kantata) (alternatives: Avaza, Certinia Professional Services Cloud, Rocketlane, Upland PSA)
- Muse Glimmer 30B: neither named (first choices: Kantata) (alternatives: Birdview, Deltek Vantagepoint, Scoro)

## What the models said about BigTime

- "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 Productive

- "Productive stands out as one of the most affordable full-featured professional services automation (PSA) platforms" (Grok 4.1 Fast, budget prompt, first choice)
- "Best Overall Value (True PSA Features): Productive ... widely considered the best fit for SMBs" (Qwen 3.7 Flash, budget prompt, first choice)
- "Productive (starting at $9/user/month) or Teamwork.com ... offer the best overall value" (DeepSeek V4 Flash, budget prompt, first choice)

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. 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.