# BigTime vs Rocketlane: 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; two named Rocketlane. Page: https://finance-ai-index.com/receivables/professional-services-automation/bigtime-vs-rocketlane/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| BigTime | 29% | #1 of 10 | 4% | 48 | 14 of 14 |
| Rocketlane | 6% | #4 of 10 | 14% | 21 | 10 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)
- Gemini 3.5 Flash: rocketlane first (first choices: Rocketlane) (alternatives: Certinia Professional Services Cloud, Kantata, Scoro)
- Mistral Small: rocketlane first (first choices: Kantata, Rocketlane) (alternatives: SAP S/4HANA)
- Claude Haiku 4.5: neither first, one named (first choices: Kantata) (alternatives: Accelo, BigTime, Certinia Professional Services Cloud, Scoro)
- Perplexity Sonar: neither first, one named (first choices: Kantata) (alternatives: Accelo, Birdview, Rocketlane, Ruddr)
- GLM 4.7 FlashX: neither first, one named (first choices: Kantata) (alternatives: BigTime, Scoro)
- MiniMax M2.5: neither first, one named (first choices: Kantata) (alternatives: Avaza, Certinia Professional Services Cloud, Rocketlane, Upland PSA)
- GPT-6 Luna: neither first, one named (first choices: Kantata OX) (alternatives: BigTime, Certinia Professional Services Cloud, Rocketlane)
- GPT-5.4 mini: neither named (first choices: Kantata) (alternatives: Certinia Professional Services Cloud, Productive, Scoro)
- Llama 4 Maverick: neither named (first choices: Kantata) (alternatives: Scoro)
- Qwen 3.7 Flash: neither named (first choices: Kantata) (alternatives: Accelo, Scoro)
- 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 Rocketlane

- "if your use case is not services-delivery-heavy, because these are positioned as specialized PSA platforms ... may be overbuilt for simpler needs" (Perplexity Sonar, negative prompt, soft negative)
- "more expensive or positioned for larger teams, such as Rocketlane at $19/user/month" (Perplexity Sonar, budget prompt, soft negative)
- "Moderate Caution – Great for onboarding, shallow on financial depth." (DeepSeek V4 Flash, negative prompt, soft negative)
- "Rocketlane is currently leading the pack in innovation" (Gemini 3.5 Flash, direct prompt, first choice)
- "Rocketlane (best overall with AI-powered Nitro agents)" (Claude Haiku 4.5, comparative prompt, first choice)
- "Kantata and Rocketlane are the top choices" (Mistral Small, direct 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.