# HashiCorp Vault vs Azure Key Vault: which do AI models recommend for secrets, October 2026

IT AI Recommendation Index, October 2026 Edition, Secrets management. Four of fourteen models named HashiCorp Vault first on the direct prompt; one named Azure Key Vault. Page: https://it-ai-index.com/identity/secrets-management/hashicorp-vault-vs-azure-key-vault/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| HashiCorp Vault | 31% | #1 of 13 | 34% | 77 | 14 of 14 |
| Azure Key Vault | 3% | #5 of 13 | 13% | 47 | 14 of 14 |

## The direct prompt, model by model

- Claude Haiku 4.5: hashicorp vault first (first choices: Doppler, HashiCorp Vault) (alternatives: AWS Secrets Manager, Akeyless, Delinea Secret Server, Infisical)
- Mistral Small: hashicorp vault first (first choices: HashiCorp Vault) (alternatives: AWS Secrets Manager, Azure Key Vault)
- Kimi K2: hashicorp vault first (first choices: Delinea Secret Server, HashiCorp Vault) (alternatives: 1Password, AWS Secrets Manager)
- GLM 4.7 FlashX: hashicorp vault first (first choices: HashiCorp Vault) (alternatives: AWS Secrets Manager, Doppler, Infisical)
- GPT-5.4 mini: azure key vault first (first choices: AWS Secrets Manager, Azure Key Vault) (alternatives: HashiCorp Vault)
- Perplexity Sonar: neither first, one named (first choices: Doppler) (alternatives: HashiCorp Vault)
- MiniMax M2.5: neither first, one named (first choices: Doppler) (alternatives: HashiCorp Vault, Infisical)
- Muse Glimmer 30B: neither first, one named (first choices: Doppler) (alternatives: AWS Secrets Manager, Akeyless, Azure Key Vault, Google Secret Manager, HashiCorp Vault, Infisical)
- Gemini 3.5 Flash: neither named (first choices: Doppler) (alternatives: Infisical)
- Grok 4.1 Fast: neither named (first choices: Doppler) (alternatives: 1Password, Infisical)
- DeepSeek V4 Flash: neither named (first choices: Doppler) (alternatives: Akeyless, Infisical)
- Llama 4 Maverick: neither named
- Qwen 3.7 Flash: neither named (first choices: Doppler) (alternatives: 1Password Secrets Manager, Infisical)
- GPT-6 Luna: neither named (first choices: Doppler) (alternatives: AWS Secrets Manager, Infisical)

## What the models said about HashiCorp Vault

- "for a mid-sized B2B company, it is generally no longer recommended unless you have a dedicated platform team" (Gemini 3.5 Flash, paraphrase prompt, hard negative)
- "Start with Delinea if you need a balanced, mid-market-focused PAM solution, or HashiCorp Vault if you have strong DevOps capabilities" (Kimi K2, direct prompt, first choice)
- "HashiCorp Vault remains the most capable and widely deployed, making it ideal if you have multi-cloud environments and complex requirements." (Claude Haiku 4.5, direct prompt, first choice)
- "For most mid-market B2B companies with a mix of cloud and on-premises needs, HashiCorp Vault is the most flexible and scalable choice" (Mistral Small, direct prompt, first choice)

## What the models said about Azure Key Vault

- "⚠️ Configuration-Dependent Risks ... Common misconfiguration: Public network access enabled" (Kimi K2, negative prompt, soft negative)
- "Microsoft disclosed a maximum-severity elevation-of-privilege flaw in Azure Key Vault" (MiniMax M2.5, negative prompt, soft negative)
- "Cloud-vendor tools (e.g., ... Azure Key Vault): Why cautious? Strong vendor lock-in" (Grok 4.1 Fast, negative prompt, soft negative)
- "HashiCorp Vault or Azure Key Vault are the most versatile and widely recommended" (Mistral Small, paraphrase prompt, first choice)
- "Azure Key Vault if you're mostly on Azure" (GPT-5.4 mini, direct prompt, first choice)
- "Use only cloud-native tools like AWS Secrets Manager or Azure Key Vault if your stack is essentially confined to one cloud provider." (Perplexity Sonar, paraphrase prompt, alternative)

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.