Now Open Source

The Universal Standard for
Semantic Data

Define your business metrics once. Use them everywhere. The Open Semantic Interchange (OSI) allows AI agents, BI tools, and data platforms to speak the same language.

100%
Vendor Neutral
YAML
Configuration
Apache 2.0
Open Source
AI Ready
Semantic Context

Write Once, Query Anywhere.

Stop redefining "Revenue" in every dashboard. OSI uses a declarative YAML standard (MetricFlow) to define metrics, dimensions, and joins.

  • Consistent Definitions

    Ensure Marketing, Finance, and Sales see the same numbers.

  • AI Context

    Give LLMs the semantic context they need to answer questions accurately.

  • No Lock-In

    Move your business logic between platforms freely.

revenue_model.yaml
semantic_model:
  name: orders
  description: Core order data from the ERP system
  model: raw_orders
  
  entities:
    - name: order_id
      type: primary
    - name: customer_id
      type: foreign

  measures:
    - name: order_total
      expr: amount_usd
      agg: sum

  dimensions:
    - name: order_date
      type: time
      type_params:
        time_granularity: day
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Supported By Industry Leaders

The Open Semantic Interchange is a coalition effort to unify the data stack.

Snowflake

Salesforce

dbt Labs

Tableau

BlackRock

Alation
Atlan
Sigma
Omni
RelationalAI

The "Rosetta Stone" for Business Data

Eliminating the silos between AI, BI, and Data Engineering.

AI-Ready Semantics

LLMs struggle with raw database schemas. OSI provides the business context (metrics, definitions) that agents need to answer questions reliably.

Interoperability

Stop rebuilding your semantic layer for every new tool. Define it once in OSI/MetricFlow and sync it to Tableau, PowerBI, and Snowflake.

Vendor Neutral

An open standard governed by the community, not a single vendor. Your business logic belongs to you, not your BI tool.

Ready to Standardize Your Data?

Join the coalition and start building your semantic layer with open standards today.