Rezolve.ai vs Leena AI: Detailed Comparison Guide for 2026

Leena AI is an agentic AI platform for HR, IT and Finance, with its deepest roots in HR service delivery and a flat per-employee license for its employee assistant. Rezolve.ai is an agentic AI service desk for IT, HR and Finance that also includes a native ITSM system of record. Choose Leena AI if HR is your primary use case. Choose Rezolve.ai if IT service management is central and you want AI and ticketing in one platform.

Rezolve.ai vs Leena AI at a glance

What is Rezolve.ai?

Rezolve.ai is an agentic AI service desk that resolves IT, HR and Finance requests inside Teams, Slack, email, web and voice. Its Sidekick assistant runs eight specialized agents behind each conversation, Agent Assist supports technicians on escalations, and its AI-native ITSM covers incident, problem, change, request, SLAs, assets and CMDB. It can also run over ServiceNow, Freshservice or Jira before beco ming your system of record.

Customers include JLL, TotalEnergies Denmark, Gesa Credit Union and MyEyeDr.

What is Leena AI?

Leena AI is an agentic AI platform built around pre-built "AI Colleagues" for back-office functions: Harrison for HR, Iris for IT and Fiona for Finance [L1]. Each ships pre-configured with integrations and Agent Operating Protocols, which are plain-English process definitions that business teams can own without engineering help.

Leena AI says it serves more than 500 enterprises and 20 million employees, with named customers including Nestlé, Coca-Cola, Abbott, Panasonic, H&M and MongoDB [L1]. Gartner Peer Insights lists it across three markets: AI Applications in ITSM, Conversational AI Platforms and Integrated HR Service Management.

What changed with Leena AI in 2025 and 2026?

• 2026: Named a Luminary in Everest Group's Innovation Watch for Agentic AI Applications in HR, which assessed 25 providers [L3].
• 2026: Recognized as a Front Runner in Gartner's "AI Vendor Race: Startups to Watch in Agentic AI" [L3].
• 2026: Repositioned around three pre-built AI Colleagues with a 45-day average go-live, and launched a separate AI Colleagues Platform for custom agents [L1].
• 2026: Published a two-part pricing model: a flat per-employee license for the Universal Assistant and a platform fee plus token usage for autonomous AI Colleagues [L2].

Feature-by-feature comparison

Both platforms resolve employee requests across IT, HR and Finance. The differences are where each is deepest, whether ticketing is included, and how autonomous AI work is priced.

Autonomous resolution

Both resolve requests end to end. Leena AI reports that 70%+ of tickets are auto-resolved across its deployments [L1], and one Gartner Peer Insights reviewer reports a resolution rate around 90% with bot adoption above 70%. Rezolve.ai reports roughly 70% of requests resolved before they become tickets.

For IT specifically, Rezolve.ai ranked #1 with the highest score in two use cases in the 2026 Gartner® Critical Capabilities for AI Applications in IT Service Management

Edge: Rezolve.ai for IT, on independently scored capability. Both report strong results.

HR service delivery

Leena AI's home ground. Its HR Colleague covers onboarding, benefits enrollment, leave, time and attendance, payroll questions and letters, backed by HR case management and a Voice of Employee module that Gartner reviewers describe using alongside knowledge management and HR transactions. Everest Group's 2026 Luminary rating is specific to agentic AI in HR.

Rezolve.ai supports HR and Finance on the same platform as IT, including onboarding journeys and an ethics assistant serving roughly 100,000 employees at JLL.

Edge: Leena AI.

IT service management

Rezolve.ai's home ground**.** Rezolve.ai includes a full AI-native ITSM with incident, problem, change, request, SLAs, assets and CMDB, plus Agent Assist for technicians. Leena AI's IT Colleague resolves common IT requests such as password resets and access, and it works with existing ITSM platforms for ticketing and change [L4]. If you plan to consolidate AI and your IT system of record, only Rezolve.ai offers both.

Edge: Rezolve,ai.

Building and customizing agents

Leena AI makes process automation accessible to business teams. Its AOP Studio turns plain-English Rezolve.ai offers Agentic Studio, a marketplace of prebuilt agents and a ready-to-run automation catalog.

Customization is where some Leena AI users see friction. A G2 reviewer noted that customization cycles were lengthy, and one Gartner reviewer said custom development could carry additional cost.

Edge: Tie. Both let non-engineers build automations; validate customization turnaround in the pilot.

Integrations and interoperability

Leena AI has the larger stated catalog. It lists 200+ pre-built connectors, including Workday, SAP, Oracle, ServiceNow and Salesforce, with MCP and A2A built in. Rezolve.ai offers 150+ governed integrations across identity, HRIS, ITSM and collaboration tools.

Edge: Leena AI.

Channels, languages and voice

Both cover the modern front door. Leena AI's Colleagues are voice-enabled and support 100+ languages. Rezolve.ai enables multimodal agentic AI support via Microsoft Teams, Slack, email, web and mobile, with VoiceIQ for phone-based ticketing.

Edge: Leena AI on language breadth; Tie on channels.

Governance and security

Both are enterprise-grade. Leena AI offers built-in observability, role-based access, policy guardrails and full audit trails, and lists SOC 2, GDPR, HIPAA and multiple ISO certifications. Rezolve.ai holds SOC 2 Type II, ISO 27001, GDPR and HIPAA-ready status, gates autonomous actions behind approvals, and has publicly committed that customer data is never used to train its models.

Edge: Tie.

Implementation

Both move quickly. Leena AI reports a 45-day average go-live [L2], and one customer testimonial describes a five-week HR helpdesk launch across 70+ properties [L1]. Rezolve.ai states a single-department go-live in as little as six weeks, with implementation, migration and training inside the quote, and G2 reviewers score it 9.2 for ease of setup and 9.7 for quality of support.

Edge: Tie.

Analyst recognition

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The pattern mirrors each product's focus: Rezolve.ai's recognition sits in IT service management, Leena AI's in agentic AI broadly and HR specifically.

Pricing and total cost of ownership

The two pricing models are closer than most comparisons suggest.

Sources: Rezolve.ai pricing, Leena AI pricing page [L2].

The meaningful difference is what sits outside the quote. Because Leena AI works over your existing ITSM for IT, your total cost of ownership includes that ITSM license. Rezolve.ai can replace it, and its fulfiller seats shrink at renewal as automation absorbs volume. Leena AI's token billing for autonomous Colleagues is transparent and auditable, which is a genuine strength, but it does vary with usage.

Ask both vendors: What is metered and what is flat? What will your current ITSM cost over three years if you keep it? How does the price change when you add a department?

What real users say

What users like about Leena AI. G2 reviewers highlight ease of use, integrations with Workday, Okta and Salesforce, and measurable ticket deflection. Gartner reviewers praise its natural-language self-service and automation of repetitive requests.

What users dislike about Leena AI. Reviewers mention lengthy customization cycles, extra cost for custom development, and that consistent value depends on well-configured knowledge and setup.

What users like about Rezolve.ai. G2 reviewers cite ease of use (9.5), a clear implementation process and responsive support (9.7).

A fair reading: Leena AI has four times Rezolve.ai's G2 review volume, which gives its rating more weight. Rezolve.ai scores higher per review.

Which should you choose?

Final verdict

Leena AI is a strong, well-reviewed platform, particularly for HR. Its pre-built Colleagues, 200+ connectors, 100+ languages and transparent token billing make it a natural fit for organizations where HR service delivery drives the business case.

Rezolve.ai is the stronger choice when IT sits at the center of the decision. It combines agentic AI with a native ITSM, ranked highest in two use cases in Gartner's 2026 Critical Capabilities for AI Applications in ITSM, and covers HR and Finance on the same platform without requiring a separate ticketing license.