Agentic Index
Lorikeet vs Sierra (2026)
Both vendors last verified
Lorikeet and Sierra both resolve complex conversations autonomously, and one of them is deliberately narrower. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
Sierra is the enterprise platform, outcome priced through sales, general across industries. Lorikeet is built for fintech and health technology companies under regulation, running actions of several steps over chat, email, voice and SMS, checking every conversation for quality and keeping an audit trail, on a Start plan of $2,100 a month billed annually plus $0.99 per chat, email or SMS resolution. Sierra will serve any large enterprise, and Lorikeet will serve a regulated one without you having to build the compliance layer yourself.
This comparison is published by Agentic Index, an independent agentic AI vendor research platform. Lorikeet and Sierra are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,084 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded
Choose Lorikeet if
- Regulated fintech or health technology is your industry and the specialization is the point.
- A public per resolution rate lets you build the business case immediately.
- 100 percent quality assurance is a requirement your regulator effectively imposes.
Choose Sierra if
- Your industry is not regulated in that way, and you want Ghostwriter to draft agents from existing procedures.
- Enterprise scale across many use cases beyond support is where you are heading.
- You want the largest reference base in the category behind the decision.
| Feature | L Lorikeet |
S Sierra |
|---|---|---|
| Action & orchestration | ||
|
Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools. |
||
|
LorikeetIntegrations & Tool Calling Connectors cover ticketing and messaging (Zendesk, Zendesk Messaging, Front, Help Scout, Slack), CRM (Salesforce, including running workflows inside it) and revenue tooling. Tools are set up as APIs or webhooks, so the agent reads data and takes actions in any internal system, scoped least-privilege with short-lived single-operation tokens and HMAC-signed inbound webhooks. Sourcelorikeetcx.ai/integrationsread 2026-09-05 |
||
|
SierraIntegrations & Tool Calling Agents reach the customer's systems of record to carry out end to end transactions, including card and ACH payments, returns, authentication and cancellation saves, and those system interactions are held deterministic and bound by policy. Agent Studio offers ready integrations and an integration framework for proprietary systems, and the Agent SDK builds the rest, so the range of connected systems depends on what each team sets up. Integrations also route a conversation to the customer's care team with its full context. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
|
Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps. |
||
|
LorikeetWorkflow Orchestration The agent runs multi-step work by following the customer's own standard operating procedures without improvising, whether a three-step form or a forty-step refund flow. Workflow steps include workflow matching, ticket triage, gather, get status, choice and route based on problem, with tool calls such as retrieving recent transactions shown inline. Lorikeet describes specialized agents working together in real time across channels to deliver end-to-end resolutions, and the login surface is a workflows console. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraWorkflow Orchestration Agents are put together from skills such as triage, respond and confirm, combined into multistep workflows for a specific use case. In Agent Studio a team defines those journeys step by step or has AI generate them from its existing operating procedures, and Ghostwriter builds or changes an agent from a description of how it should behave. Flexibility is set per workflow, so a team can move between deterministic execution and open ended reasoning on the same agent. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
|
Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools. |
||
|
LorikeetTriggers & Channel Coverage Five channels run on one engine, phone, SMS, chat, email and WhatsApp, with an SDK as a further delivery surface, and specialized agents work together in real time across chat, email, voice and SMS to deliver end-to-end resolutions. Voice runs at sub-second latency on the same engine, so a customer who starts in chat does not repeat themselves on a call, and every channel inherits the same guardrails and logging. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraTriggers & Channel Coverage An agent is built once and deployed across chat, phone, email, SMS and messaging, with the same skills and policies applying on each. A single agent working across every channel is the core idea of the platform. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
| Knowledge & context | ||
|
Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers. |
||
|
LorikeetKnowledge Grounding & RAG The agent is grounded in the customer's own documented procedures, not retrieval alone. Lorikeet follows the customer's SOPs, taps into its systems and handles its highest-stakes workflows, and says its architecture goes beyond retrieval-augmented generation by following the procedures themselves, so the agent neither just retrieves nor invents process. Help centers, reference materials and internal tools supply the surrounding material, and the customer writes and owns the procedures. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraKnowledge Grounding & RAG Agents ground answers in the customer's own content through retrieval built into Agent OS, and the Agent Data Platform joins that knowledge with customer context from other systems. In Agent Studio a team connects its knowledge sources and views and edits help center content, FAQs and policies. Sierra spots common themes missing from the knowledge base and drafts new articles from how care representatives resolved edge cases, so the store grows without manual updates. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
|
Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer. |
||
|
LorikeetMemory & State Persistence Customer memory keeps context across every touchpoint, so a customer who starts in chat does not repeat themselves on a call, because the channels run on one engine and persistence spans channels. No scope, lifetime, retention window or deletion control for that memory is described. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraMemory & State Persistence Agents personalize each conversation from agent memory and the customer's profile, and the Agent Data Platform brings together what the agent knows about a specific customer across sessions, channels and systems, so context carries from one conversation to the next. How long that memory lasts, and whether a customer's record of it can be viewed or cleared, is not public. Sourcesierra.ai/product/insightsread 2026-09-05 |
||
| Control & trust | ||
|
Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls. |
||
|
LorikeetHuman Oversight & Guardrails Runtime guardrails detect sensitive topics and escalate to the customer's team before the agent proceeds, and outbound checks block the agent from disclosing withheld fields or acting outside policy, independently of the model. Tools are scoped least-privilege, dangerous actions need per-user elevation, and the integration is red-teamed against prompt injection and scope escalation before go-live. People write the procedures the agent follows, and handoffs arrive with the investigation complete. Sourcelorikeetcx.ai/product/trustread 2026-09-05 |
||
|
SierraHuman Oversight & Guardrails Sierra wraps its models in supervisory layers that check outputs against scope and policy before the agent responds, to reduce hallucination and prevent abuse. Access to systems of record is deterministic and controlled, and the customer's policies and security procedures are enforced outside the model. Flexibility settings on each workflow limit how far the agent may improvise. Sourcesierra.ai/product/trust-and-reliabilityread 2026-09-05 |
||
|
Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy. |
||
|
LorikeetSecurity, Identity & Governance Lorikeet holds SOC 2 Type II, ISO 27001:2022, HIPAA and GDPR, all independently verified and published on a public Vanta trust center at trust.lorikeetcx.ai with reports downloadable under NDA and refreshed annually, and it signs BAAs for healthcare customers. Controls include automatic PII redaction, minimum-necessary PHI handling, TLS 1.3 in transit and AES-256 at rest, no public internet access to production, row-level-security tenant isolation, SSO with hardware-key MFA, and third-party penetration testing. Sourcelorikeetcx.ai/product/trustread 2026-09-05 |
||
|
SierraSecurity, Identity & Governance Sierra holds ISO/IEC 27001:2022 and ISO/IEC 42001:2023 certificates, a SOC 2 Type II report, a HIPAA attestation for 2026 and PCI DSS Level 1 service provider certification. Its trust center also covers the European and California privacy laws, the CSA STAR registry and FedRAMP High, with controls and policies shared on request. Personal information shared with an agent is encrypted and masked automatically, filters block topics and keywords a company puts off limits, and cardholder data runs on dedicated PCI infrastructure that never touches Sierra's core platform, models or storage. Customer data is never used to train models or shared with other customers. Who inside a customer's own organization can build, edit or publish an agent, through single sign on, roles or permissions, is not public. Sourcesierra.ai/product/trust-and-reliabilityread 2026-09-05 |
||
|
Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
||
|
LorikeetObservability & Auditability Every customer interaction, model choice and action is tracked and fully explainable, not a black box. Every tool call, elevation request and reasoning step is logged with timestamps and can be replayed for a regulator examination, and Coach scores the quality of every conversation, human or AI. Sourcelorikeetcx.ai/product/trustread 2026-09-05 |
||
|
SierraObservability & Auditability Every agent action can be traced to its reasoning, with the knowledge sources and systems it used, and developers inspect API calls and logic traces while Agent Studio shows a live trace of each decision, tool call and response during a build. Insights reports on CSAT, resolution and other metrics with custom reports, tags and categorizes conversations automatically, flags the ones that need a person's attention and sends alerts on abuse attempts or performance drops to a team's existing tools. Explorer answers questions about thousands of conversations with themes, data and links to the conversations behind each finding, and delivers a weekly briefing on its own. Sourcesierra.ai/product/insightsread 2026-09-05 |
||
|
Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting. |
||
|
LorikeetDeployment & Data Residency Production runs on Google Cloud Platform in a private VPC with no public internet access and row-level-security tenant isolation, with US primary hosting and data storage residency available in Australia or the EU. Lorikeet's marketing articles name the US, Australia and the UK, while its trust page lists Australia and the EU. Sourcelorikeetcx.ai/product/trustread 2026-09-05 |
||
|
SierraDeployment & Data Residency Sierra hosts the platform as SaaS. Each subprocessor carries its own processing location on the trust center, and customers do not pick a region. There is no VPC, single tenant or on premises option. The FedRAMP High commitment points to separate government infrastructure, though no choice of residency regions is offered. Sourcesierra.ai/product/trust-and-reliabilityread 2026-09-05 |
||
| Solution readiness | ||
|
Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value. |
||
|
LorikeetPrebuilt Agents, Templates & Packs Each customer's configuration is written from its own standard operating procedures, by design. Lorikeet's test is that if you can explain to a human agent how to resolve a ticket, the agent can handle it, so time to value depends on the customer's procedure documentation. There is no template library, prebuilt agent catalog or marketplace, and the specialized agents in the Team of Agents architecture work together internally and are not assets a customer browses and adopts. Lorikeet also runs a separate site at lorikeet.tools, branded Toolshed, whose contents are not described. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraPrebuilt Agents, Templates & Packs The Agent SDK ships with a range of AI skills and systems integrations to help customers go live faster, and skills such as triage, respond and confirm work as reusable building blocks. Customers assemble these pieces themselves. There are no named prebuilt agents, templates, library or marketplace. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
| Platform extensibility | ||
|
Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys. |
||
|
LorikeetModel Flexibility & Routing OpenAI, Anthropic and Baseten are among the core subprocessors, so several model providers are in play, all under zero-data-retention agreements with no fine-tuning on customer data, and Lorikeet routes between providers by task. The routing is Lorikeet's own and model choice is tracked, not made by the customer, with no customer-facing selection or bring-your-own-model control. Sourcelorikeetcx.ai/product/trustread 2026-09-05 |
||
|
SierraModel Flexibility & Routing Agents draw on more than fifteen frontier, open weight and proprietary models chosen per job, and Sierra switches between LLM providers automatically to optimize performance and keep running during a provider outage. Model serving runs through subprocessors that include Anthropic, Google, AWS, Baseten, Fireworks AI, Together AI and Modal. Routing happens inside Sierra, and neither customers nor admins choose the model. Sourcesierra.ai/blog/constellation-of-modelsread 2026-09-05 |
||
|
APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems. |
||
|
LorikeetAPIs, SDKs & MCP Extensibility A developer documentation site at docs.lorikeetcx.ai covers a quickstart and API reference, and integrations use scoped Bearer-credential access and HMAC-signed inbound webhooks that the customer's systems call. Lorikeet also publishes public HTTP endpoints that outside AI assistants can call to query its support agent and book demos. The documentation sits behind a customer access code, so the platform API and its scope are open only to customers, and no SDK is advertised. Sourcedocs.lorikeetcx.ai/guides/quickstartread 2026-09-05 |
||
|
SierraAPIs, SDKs & MCP Extensibility Developers build, customize and deploy agents with the Agent SDK, which comes with documentation, interactive training and a development pipeline. Agent OS adds ready made tooling for building, deploying and managing agents. There is no public API reference or MCP server for the platform itself, so developers work through the SDK. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
|
Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment. |
||
|
LorikeetTesting, Debugging & Optimization Testing covers both sides of go-live. Before launch, a pre-go-live simulation suite lets a security or compliance team validate agent behavior before unsupervised resolution begins. After launch, Coach reviews every ticket, not a sample, whether handled by people, AI or both, shows why performance is trending up or down, proposes fixes and, with approval, implements them, with automated quality assurance, thematic analysis, segmentation and export. Coach is sold to Lorikeet customers and standalone, is metered per ticket and is generally available. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraTesting, Debugging & Optimization Agent Studio simulates conversations and scores the agent against defined outcomes, and a team builds a regression test suite that runs before each new version of the agent is released. Voice agents are tested for transcription, background noise and speaker variation before going live, and the Agent SDK checks behavior across a wide range of scenarios in a development pipeline, so definitions are not edited live. After launch, Insights runs experiments on variations of agent behavior such as handoff rules or levels of determinism, and Explorer compares performance before and after a change Ghostwriter has made. Sourcesierra.ai/product/agent-studioread 2026-09-05 |
||
| Specialist automation | ||
|
Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone. |
||
|
LorikeetBrowser & Computer Use Work happens programmatically inside the customer's systems through controlled integrations, tapping into Zendesk, Stripe and internal APIs, with tool calls such as retrieving recent transactions shown as named workflow steps. No browser control, hosted session or computer use is described. Lorikeet's public HTTP endpoints let outside AI assistants call Lorikeet and do not operate any interface. Sourcelorikeetcx.airead 2026-09-05 |
||
|
SierraBrowser & Computer Use Agents act on the customer's systems through API integrations built with the SDK, kept deterministic and bound by policy, and deploy across chat, phone, email, SMS and messaging. Browser control, a virtual desktop and operation of software without a programmatic interface are not part of the platform. Sourcesierra.ai/product/agent-sdkread 2026-09-05 |
||
Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | L Lorikeet |
S Sierra |
|---|---|---|
|
Entry price Lowest public entry point |
Start at $2,100 per month billed annually, plus $0.99 per chat, email or SMS resolution and $1.50 per voice resolution. Scale at $5,100 per month with lower rates. Signature is custom. | Outcome based (per resolution) · contact sales |
|
Pricing confidence How public the numbers are |
Public, partial | Contact only |
|
Billing Primary billing axis |
Resolutions, billed per resolution by channel on top of a monthly plan fee that is billed annually. | Outcome based, charged per resolution or other outcome, such as a saved cancellation or a completed upsell. |
|
Variable cost Workload / overage exposure |
Medium variable cost | High variable cost |
|
Free tier / trial Try before you buy |
No free tier
|
No free tier
|
|
Buying motion Self-serve vs sales call |
Sales call | Sales call |
|
Pricing verified When this pricing was last checked |
Product updates
Newest first, each linked to its source.
Lorikeet
-
· MCP / tool calling / API
Lorikeet concierges now support the Personal Agent Protocol, the draft open protocol from Sierra and Meta for consumer agents, alongside A2A and WebMCP.
Source -
· Observability / auditability
Customer conversations that come from AI agents rather than people can now be flagged in Lorikeet, in beta.
Source
Sierra
-
· Human approval / guardrails
Compliance Console, built into the Horizon platform, sets the rules Sierra agents follow when they reach out to customers by phone, text or email.
Source -
· Agent capability
Sierra launched fleming-1, a model of its own that detects when the caller on a phone call is another agent by assessing whether the voice is synthetic while the call is still happening.
Source -
· Security / enterprise
Sierra achieved AIUC-1 certification after an independent audit by Schellman and testing by the Artificial Intelligence Underwriting Company.
Source
More comparisons with Lorikeet or Sierra
Other matchups in customer support agents
Not the pairing you were after? These compare a different set of customer support agents on the same 14 capabilities.