The State of Auth in AI apps: 2025 Edition

Inside 50+ fast-growing AI apps: how authentication powers speed, access, and security

The invisible infrastructure behind fastest-growing AI apps

The way software enters an organization today is nothing like it used to be — especially when it comes to modern AI apps. One curious team member tries a tool in seconds, teams organically adopt it, and the entire company relies on a tool that didn’t exist in their stack last quarter. This shift has created a new category of AI-native, business-focused products with growth patterns that look nothing like legacy SaaS.

But behind that fast, frictionless adoption lies the most overlooked systems in product design: authentication & authorization.
They shape decisions like

how users sign up
how teams form
how organizations connect
how the product adapts

To understand how this new generation approaches these choices, we conducted an in-depth manual teardown of 50+ modern AI companies, studying their signup flows, identity models, and org patterns to map the realities of today’s fastest-growing products.

What we learned across 50+ modern AI apps

Teams made different authentication choices depending on their users, markets, and growth paths. Some emphasized speed, others emphasized control, and many shifted approaches as their products scaled.

Industry research echoes this complexity. In a recent analysis of SaaS companies,

63% companies reported friction between auth provider & roadmap
41% considered switching providers within two years

These signals clearly highlight how closely identity choices are tied to product velocity, and how decisions made early can shape what becomes possible later.


Against that backdrop, below patterns surfaced consistently across our research.

Recurring Themes

01 Most modern companies already ditched passwords

Passwords fail for a simple reason: they rely on humans. 81% of security breaches start with compromised credentials, reused across services, written on sticky notes, phished in emails, chosen poorly despite complexity requirements.

The fix isn't better password policies. It's eliminating passwords completely.

Gartner predicted that 60% of large enterprises will eliminate passwords by 2025, but modern AI products are half way there. They’ve moved to passwordless as the default, not the exception.

How companies go passwordless

The pattern

Passwordless isn’t something companies “grow into.” It’s a founding decision — made early because new users simply won’t tolerate password friction.

Passwordless adoption increases with the stage of the company.

Once teams ship passwordless, they don’t go back, and they don’t outgrow it. It becomes part of the product’s core identity from day one.

Some companies including HeyGen, ReadAI, Fyxer AI has implemented the "login with the tool you're already using" UX.

What does your current identity
flow look like today?

Security vs Friction

Where do companies land?

The ideal auth system balances strong security with low user friction. Here's how some of the companies we analyzed position themselves on this spectrum.

Recurring Themes

02 Passwordless succeeds only when UX does

Passwordless might be the decision — but how you implement it determines whether users stay or bounce. And the bar is brutal because a bad signup or login experience drives 88% of users away.

Some of these patterns became table stakes, nearly every company ships them. Others require implementation work that most early teams often tend to skip.

A few remain experimental.

1. Three out of four companies no longer ask this

The first screen most users see asks them to choose: “Sign up” or “Log in?”

But users rarely remember whether they already have an account, especially if they tried the product months ago, joined via a team invite, or signed in previously with a different method

~75% of companies eliminate that decision.

If you try to log in without an account → it seamlessly creates one.
If you try to sign up but already exist → it routes you to login.
Adoption grows with maturity:
The gap between a company’s early stage and expansion stage is where merged identity patterns start to show up.

It is indicative of how merged flows only get fixed when someone actually notices and prioritises the friction.

2. The industry standard for login is now one-tap

Standard Google login works, but it redirects you to Google's page, asks for permissions, redirects back. That's three pages for one action.

Whereas, one-tap shows your Google account in an overlay on the login page and authenticates you immediately without any page redirects.

Trivia!
One-tap runs on OpenID Connect, the same protocol as enterprise SSO.

Security matches "Sign in with Okta"— the only thing that differs is the interface!

3. Passkeys are still early, but the trend points to inevitability

Passkeys replace passwords with device-based authentication — Face ID, fingerprint, or a device PIN. Rather than verifying a shared secret, passkeys use public-key cryptography: your device stores a private key, the server stores the matching public key, and authentication happens through a secure challenge-response.

They offer stronger security and less friction than traditional 2FA — folding “something you have” and “something you are” into a single, seamless authentication event.

Here’s the trend:
Adoption is early today but tracking the same curve 2FA once did. What’s niche now maybecome ubiquitous in 3–5 years as browsers and devices push passkeys as the default.

4. Users expect seamless context switching

As the adoption of AI products spread within organizations, users increasingly belong to more than one workspace. Switching context without breaking momentum has become a baseline expectation, not an advanced feature.

Organization switchers allow users who belong to multiple workspaces, for example, testing environment, staging, and production, to toggle between them without logging out and back in.

Users select their active workspace from a dropdown menu, and the interface switches context immediately.

What does your current identity
flow look like today?

Recurring Themes

03 Enterprise adoption hinges on 3 auth capabilities

As AI products grow, most teams run into the same pattern: bottom-up adoption moves fast. A single team starts using the product, others follow, and usage spreads organically across the company.

But the moment that spread reaches a wider organization, especially an enterprise — security and IT step in. And that’s when enterprise readiness becomes real.

It’s no longer just about adding compliance frameworks or audit logs. It’s about whether your product can plug cleanly into an organization's existing identity, security, and IT workflows, without creating operational overhead or security gaps.

Across the companies we studied, three authentication capabilities consistently emerged as the earliest and most deal-blocking requirements during enterprise evaluations:

Organizations managing 106+ SaaS applications cannot manually provision users, cannot manage 100+ password combinations, and cannot tolerate security gaps from password-only authentication.

Our research creates a tiered market where companies at different maturity stages compete for enterprise deals with vastly different authentication capabilities.

1. Single Sign-On (SSO) has become the first enterprise checkpoint

When AI products start selling into larger organizations, a familiar bottleneck emerges: enterprises can’t manage user access the way startups do.

Teams running 100+ SaaS apps cannot:

manually create or remove users
track dozens of separate passwords
rely on password-only authentication for security

This is why SSO has become the first enterprise checkpoint and an expectation.

78% of U.S. enterprises now require SSO during vendor evaluation. When a product lacks it, deals slow down, stall, or enter security exception processes that few early-stage companies can clear.

Best Practice: Email-First SSO Flow

Modern enterprise authentication follows a streamlined pattern without dedicated "Sign in with SSO" buttons:

Why this works better than dedicated SSO buttons?

Familiar UX:
Matches successful patterns and user expectations from modern SaaS (Slack, Notion, Figma).
No ambiguity:
Users don't need to know "Do we use SSO or not?" as the system handles routing.
JIT provisioning:
IT teams don't need to pre-provision users—authentication and account creation happen simultaneously. Most importantly, it reduces support tickets.

2. Lifecycle automation becomes essential at scale

Once SSO is in place and users can authenticate with corporate credentials, enterprise buyers immediately look to the next layer: automated provisioning.

SSO establishes who the user is. But IT teams still face the operational burden of:

manually creating accounts for new hires
updating permissions when roles change
removing access the moment someone leaves

At scale, and especially in security-sensitive industries, this creates a huge gap.

That’s where SCIM (System for Cross-domain Identity Management) comes in. SCIM lets the organization’s identity provider (Okta, Azure AD, OneLogin, Google Workspace) automatically create, update, and deactivate users in your product.

Across the companies we studied, SCIM is nonexistent at early stage and only appears in 30–33% of growth stage companies.

This pattern suggests that SCIM is typically implemented reactively; when enterprise deals start slipping, rather than proactively as products move upmarket.

SCIM transitions from "nice-to-have" to "requirement" when:

Selling to highly regulated industries (finance, healthcare) where immediate deprovisioning is mandatory
Deploying to organizations where manual lifecycle management is operationally unsustainable
Competing against vendors who offer SCIM and position it as "complete enterprise readiness"

3. Two-Factor Authentication (2FA) isn’t a general security feature

Once identity (SSO) and provisioning (SCIM) are in place, enterprises look for controls that harden access across all systems. For most organizations, this means requiring multi-factor authentication at the identity provider level (Okta, Azure AD, Google Workspace).

This doesn't replace your product’s authentication — it strengthens the corporate login boundary.Most enterprise MFA happens at the IdP, not inside the vendor’s product.

So when companies add product-level 2FA, it's usually to secure their own native login methods (email/password, magic link fallback), not to supplement SSO.

Why product-level 2FA shows up during enterprise evaluations?

Buyers discover they need it during procurement, when they encounter questions from IT and security teams:

Do you offer MFA for non-SSO users?
Can admins enforce MFA for native accounts?
Do you provide secure recovery flows?

No product offers 2FA on free tiers because the need typically emerges during enterprise procurement, and not during initial product evaluation. When 2FA becomes required, enterprises also expect reliable recovery options for native accounts.

Together, the following flows ensure both usability and auditability:

The pricing signal:

Unlike passwordless authentication that is offered to reduce onboarding friction, 2FA is universally premium because:

This makes 2FA an ideal enterprise tier anchor: a feature with near-zero price sensitivity (buyers either need it or don't) that clearly separates SMB from enterprise packages.

Enterprise Readiness Framework

To understand how prepared each product is for enterprise adoption, we evaluated how clearly and deeply they support enterprise-grade authentication and identity provisioning.

Across the dataset, products fell into three distinct maturity tiers:

What does your current identity
flow look like today?

Recurring Themes

04 Invites are the first lever of organisation expansion

SSO and SCIM handle enterprise deployment at scale, but long before a product reaches that stage, the real expansion happens at the organisation layer— through invites.

Invites are the mechanism by which organisational structure begins to take shape in your product. They determine how usage propagates inside a customer account: one user brings in a teammate, that teammate adds their department, and adoption grows organically from there.

This is especially important because everything upstream — roles, billing, access policies, SSO routing, SCIM provisioning, ultimately anchors to the organisation as the primary unit of identity. If invites are inconsistent, lack metadata, or bypass org boundaries, the entire multi-tenant model becomes brittle.

Some products treat invites as the backbone of PLG growth. Others gate them as a premium feature. But across the dataset, three patterns consistently emerged.

1. Team-first products assume collaboration

Some products automatically create an "organization" or "workspace" during user signup, while others defer org creation until the user explicitly initiates team collaboration.

The pattern by target market:

Individual-first products (personal productivity, design tools)
Defer org creation until collaboration needed
Team-first products (project management, CRM, analytics)
Create org immediately since product assumes team usage

2. Modern B2B app users operate across orgs and workspaces

B2B application users frequently operate in multiple contexts. Without multi-org support, identity becomes fragmented and increases friction for users.

They will have to:

create duplicate accounts
juggle multiple login identities
switch emails to access different workspaces

3. 83% of the products use hybrid invites

Inviting teammates remains one of the clearest indicators of how a product intends to grow. The mechanics vary, but most products converge on the same pattern:

Two insights stood out:

Automatic org association:
When a user signs up with a corporate email or accepts an invite, 41% of products automatically place them into the existing organization. This reflects a clear priority: reduce friction, not ask users to choose or search for their org.
Invite paywalls:
A strategic choice that turns team expansion into a monetization lever, especially in AI products where usage spreads quickly - 53% of companies paywall the ability to invite teammates.
Recurring Themes

05 Scaling teams outgrow simple roles & permissions

When teams are small, giving everyone the same permissions feels straightforward. But once teams grow beyond five people, uniform access becomes an operational and security risk.

Your finance lead shouldn’t access customer data. Your customer success team shouldn’t modify billing settings. Your contractors shouldn’t see employee compensation.

Role-Based Access Control (RBAC) addresses this by mapping users to roles, and roles to granular permissions. Yet the path to implementing RBAC, especially with custom roles, is far from simple.

Building a production-grade authorization infrastructure typically requires 12–18 months of engineering: designing a permission model, building a roles service, enforcing permissions consistently across APIs, wiring audit logs, enabling custom roles per tenant, and exposing safe admin interface. And it usually lands at the exact moment companies need to accelerate enterprise sales, making it one of the most common blockers in upmarket motion.

62% of all companies with custom roles are in the expansion stage, preparing for enterprise deals.

What this means for your product

RBAC adoption follows a predictable pattern across the companies we analyzed:

Practical scoring Model

We studied 50+ AI products,
but there's one left to explore

Yours

Every product builds identity differently. This quick self-assessment helps you see how your stack compares — from modern passwordless flows to enterprise-grade control.

Roundup

What identity looks like
at each stage of growth

Identity evolves quickly as products grow. This breakdown shows what companies typically prioritize at each stage, from early activation to enterprise requirements.

Conclusion

Authentication evolves differently in every company — shaped by customers demands, engineering bandwidth, and how quickly the business grows. Some teams add enterprise features early. Others scale through PLG before the first security questionnaire shows up.

In the early days, prioritising product velocity over a perfect authentication model is completely rational. But the same shortcuts become increasingly expensive to extend later.

A single mis-scoped permission, a brittle SSO flow, or an inconsistent login path can derail an enterprise rollout, introduce support complexity, or even stall a deal entirely.

The companies that scaled cleanly were the ones that avoided one-off implementations, and leaned on abstractions that allowed their identity model to evolve as the product grew.

That’s exactly why we built Scalekit: we turn identity into a set of modular, full-stack primitives that can be adopted incrementally, without rewiring your app every time your requirements evolve. Integrate it once, keep your product moving fast, and grow into enterprise-grade authentication without re-architecting anything later.

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