Get your TSI Score

Evidence that your agents are ready for real work.

The TSI Score is an independent assessment against global standards and the TSI Trust Stack. It gives a structured view of your agent’s readiness, assurance posture, and priority improvements, so it can take on meaningful work with confidence. Every assessment maps to a TSI rating from A1 to A5.

See the A1–A5 ratings →

What gets assessed

A score built for production, not a lab demo.

TSI evaluates the controls that determine whether an autonomous system can be understood, governed, and held accountable in the conditions it will actually face.

Assessment domains

  1. Authority & identity01
  2. Data & privacy02
  3. Explainability03
  4. Adversarial resilience04
  5. Runtime governance05
  6. Accountability06

The process

From captured data to an issued Trust Tag.

  1. Step 01

    Capture data

    Collect the agent’s inputs, actions, decisions, and context as it operates.

  2. Step 02

    Store evidence

    Keep a secure, time-stamped record that reviewers can return to.

  3. Step 03

    Map to standards

    Link each piece of evidence to global standards and the TSI Trust Stack.

  4. Step 04

    Define tests

    Set the checks each control must pass for the agent’s intended use.

  5. Step 05

    Continuously evaluate

    Run the tests as the agent operates, not just once before launch.

  6. Step 06

    Create independently verifiable evidence

    Produce results a third party can check without relying on your word.

  7. Step 07

    Issue Trust Tag

    Where qualification requirements are met, the agent receives its TSI Trust Tag.

TSI Trust Tags

Five levels, from foundational to trusted at scale.

The TSI rating turns a detailed assessment into a signal every stakeholder can read, and a clear next step for every team.

  1. A1Foundational

    Early-stage controls are defined; further assurance is needed before meaningful autonomy.

  2. A2Developing

    Core controls are emerging and readiness is improving.

  3. A3Assured

    The agent demonstrates a credible trust and governance baseline for its intended context.

  4. A4Advanced

    Strong, repeatable controls with clear evidence, oversight, and operational maturity.

  5. A5Trusted at Scale

    Leading assurance posture for high-confidence deployment, continuous learning, and ecosystem accountability.

TSI Trust Tag

A simple, credible signal of trustworthy deployment.

The Trust Tag gives enterprises, buyers, partners, and end users a clear signal that an AI agent has been independently assessed against global standards and the TSI Trust Stack.

Example for illustration. Final Trust Tag design and use are set by TSI programme requirements.

The TSI Trust Tag helps organizations communicate that an AI agent has been independently assessed for trustworthy deployment.

Why a Trust Tag matters

  • Makes agent readiness easier to understand across technical and non-technical stakeholders
  • Creates a common language for procurement, governance, risk, and executive teams
  • Signals a commitment to transparent, responsible deployment
  • Gives solution providers a clearer path to demonstrate assurance

A completed assessment can lead to the appropriate TSI rating and, where qualification requirements are met, TSI certification and use of the TSI Trust Tag. Ratings, certification, and Trust Tag use are subject to TSI’s final methodology, assessment evidence, and programme requirements. TSI assessment complements, and does not replace, legal, regulatory, or sector-specific certification requirements.

Global standards alignment

Not another proprietary badge.

The TSI Score translates established global standards, frameworks, and trust-and-safety practice into an agent-specific readiness assessment. The result helps technical, risk, legal, and executive teams see the same operating reality.

Trust Stack assessment metrics are developed from

  • Relevant best practices for AI governance and risk management
  • International trust, safety, security, privacy, and governance practices
  • Ongoing input from TSI’s working group of international advisors
TSI will publish the precise reference standards and scoring methodology as the programme matures. Scores should be used as decision support, not as a substitute for legal, regulatory, or sector-specific assurance.

Working group and advisors

Shaped by an international working group.

TSI standards and assessment methodology are shaped by an international working group of advisors, informed by real enterprise deployment needs, and continuously improved as the market matures.

How the working group works →

  • Enterprise leaders
  • AI engineers
  • Security and risk leaders
  • Researchers and academics
  • Policy and legal advisors
  • AI solution providers

Start here

Bring the agent you are preparing to deploy.

We will discuss the system, intended autonomy, business context, and the kind of assurance your stakeholders need.

Get in touch

Write to us at tsi@opengrowth.com

TSI Scoring Tool

Request a demo

Tell us about your agent environment. We'll tailor the walkthrough to the controls that matter most for your deployment.