# ContractZen vs Diligent: which do AI models recommend for entity management, September 2026

Finance AI Recommendation Index, September 2026 Edition, Entity management. One of twelve models named ContractZen first on the direct prompt; zero named Diligent. Page: https://finance-ai-index.com/corporate/entity-management/contractzen-vs-diligent/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| ContractZen | 13% | #4 of 12 | 0% | 12 | 9 of 12 |
| Diligent | 3% | #8 of 12 | 64% | 11 | 8 of 12 |

## The direct prompt, model by model

- Mistral Small: contractzen first (first choices: ContractZen) (alternatives: Commenda, GateWay Entities)
- Claude Haiku 4.5: neither named (first choices: Commenda) (alternatives: Athennian, CT Corporation Entity Management, Diligent Entities)
- GPT-5.4 mini: neither named (first choices: Diligent Entities) (alternatives: Harbor Compliance)
- Gemini 3.5 Flash: neither named (first choices: Athennian) (alternatives: EntityKeeper, Filejet, MinuteBox)
- Perplexity Sonar: neither named (first choices: Commenda) (alternatives: Computershare GEMS, Fides)
- Grok 4.1 Fast: neither named (first choices: Athennian) (alternatives: Carta, Diligent Entities, Pulley)
- DeepSeek V4 Flash: neither named (first choices: Athennian) (alternatives: CSC Entity Management, CT Corporation Entity Management, Commenda, Diligent Entities, EntityKeeper)
- Llama 4 Maverick: neither named (first choices: Ocorian) (alternatives: Coverpin, F6S)
- Qwen 3.7 Flash: neither named (first choices: Commenda) (alternatives: Diligent Entities, LegalX)
- Kimi K2: neither named (first choices: Filejet) (alternatives: Athennian, Commenda, Diligent Entities)
- GLM 4.7 FlashX: neither named (first choices: Athennian) (alternatives: CSC Entity Management, Commenda, Diligent Entities, EntityKeeper)
- MiniMax M2.5: neither named (first choices: Commenda) (alternatives: Athennian, Diligent Entities, GateWay Entities)

## What the models said about ContractZen

- "I'd recommend ContractZen as the top corporate governance and entity management tool" (Grok 4.1 Fast, paraphrase prompt, first choice)
- "I recommend ContractZen as a strong corporate governance and entity management tool" (Mistral Small, paraphrase prompt, first choice)
- "ContractZen is the best overall choice for most mid-market B2B companies." (Mistral Small, direct prompt, first choice)

## What the models said about Diligent

- "Legacy Systems (e.g., Diligent, CSC Entity Management): Often highly robust ... but can feel clunky, require heavy training, have longer implementation times, and carry higher price tags." (Gemini 3.5 Flash, scale prompt, soft negative)
- "Many legacy systems (like Diligent, Mitratech, or CSC) are designed for large multinationals, hide their pricing ... often start at tens of thousands of dollars per year." (Gemini 3.5 Flash, budget prompt, soft negative)
- "## Top Recommendation: Diligent" (GLM 4.7 FlashX, paraphrase 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.