MOSTLY AI

What is MOSTLY AI?

MOSTLY AI is a synthetic data platform that learns the patterns in your real tabular data and generates a new dataset that keeps the statistics but not the individual records. You connect a source such as a relational database, cloud data warehouse or cloud bucket, train a generator, and then create as much synthetic data as you need for machine learning, software testing, analytics or data sharing. It handles multi-table databases with referential integrity, time-series events, text and geolocation fields, and includes data rebalancing, smart imputation of missing values and a Data Insights Report that scores how closely the output matches the original. Users can work through a web interface, an API or a Python client, and the company also publishes an Apache 2.0 open-source Synthetic Data SDK. A Free plan gives a daily credit allowance, the Team plan is $3.00 per credit and Enterprise is $5.00 per credit, both through contacting sales.

Use cases

• Generate synthetic test data
• Anonymize customer data for sharing
• Train ML models on synthetic data
• Rebalance imbalanced datasets
• Impute missing values
• Synthesize multi-table databases
• Run self-service analytics safely

Who it's for

• Data scientists
• Data engineers
• QA and test teams
• Privacy and compliance teams
• Enterprises

Why use MOSTLY AI

• Real records never appear in the output, so teams can share, test and train on data that carries less privacy risk.
• The Data Insights Report makes it possible to check quality before using a dataset.
• It handles relational and time-series structures, not just single flat tables.
• A free plan and open-source SDK let you try the approach before paying.
• The vendor lists ISO 27001 and SOC 2 Type 2 certification for its hosted environment.

MOSTLY AI features

• Synthetic data from tabular, time-series, text and geolocation data
• Multi-table synthesis that preserves referential integrity
• Star schema support and nested sequences
• Data Insights Report comparing synthetic and original data
• Data rebalancing and smart imputation
• Temperature control for generation
• Connectors for MySQL, PostgreSQL, Oracle, SQL Server, Snowflake, Databricks and BigQuery
• API and Python client
• Open-source Synthetic Data SDK under Apache v2
• Deployment on Kubernetes or OpenShift

MOSTLY AI integrations

• MySQL
• PostgreSQL
• MariaDB
• Oracle
• Snowflake
• Databricks
• BigQuery
• AWS
• Azure
• Jupyter

How to get started with MOSTLY AI

1. Sign up for the free plan or request a demo, then create a connector to your database, warehouse or bucket, or upload a file.
2. Train a generator on the source data so it learns patterns and relationships between tables.
3. Review the Data Insights Report to see how well the generator matches the original.
4. Generate synthetic data, optionally rebalancing, imputing or adjusting the temperature.
5. Send the output to your destination, or call the API or Python client from your own workflow.

MOSTLY AI limitations

• Free plan is capped by a daily credit allowance
• Team and Enterprise pricing requires contacting sales
• Pricing and docs pages give different free daily credit figures, so check your account
• Source tables with more than 5,000 subjects are recommended for best quality

MOSTLY AI pricing

Yes, MOSTLY AI has a free plan. Paid plans start at $3 usage-based, according to the official pricing page on 24 Oct 2026.

MOSTLY AI plans

• Free

  Free

  free forever

  • Up to 5 credits per day
  • 1 Creator
  • Deployed via SaaS

• Team

  $3.00 /credit

  contact us

  • 500 credits per month for platform installations
  • 100 credits per month for Creators
  • 1 credit per 1 million data points

• Enterprise

  $5.00 /credit

  contact us

  • Dedicated customer success team
  • Synthetic data superuser training
  • Custom deployment options
  • SLAs and dedicated support

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

MOSTLY AI alternatives

The main MOSTLY AI alternatives listed on Debuly are Tonic.ai, YData, Guardrails AI, PandasAI, BAML and BenchGen. The table compares pricing and platforms; order is A–Z.

1. 

   BAML

   Open-source, TypeScript-like programming language for agents, with typed LLM functions, built-in tests and SDK generation.

   Developer platformsCoding
   Open sourceVisit BAML (official site)
2. 

   BenchGen

   Agent benchmarking platform that runs AI agents through simulated environments, scores each decision and exports training data.

   Developer platformsAutomation and agents
   FreemiumVisit BenchGen (official site)
3. 

   Guardrails AI

   Open-source framework that wraps LLM apps with validators for PII, hallucination and policy checks, plus Snowglobe simulation testing.

   Developer platformsCodingAutomation and agents
   Open sourceVisit Guardrails AI (official site)
4. 

   PandasAI

   Ask questions of your data in plain language and get charts and answers, as an open source Python library and a hosted analyst called Annie.

   Developer platformsProductivityResearch and search
   FreemiumVisit PandasAI (official site)
5. 

   Tonic.ai

   Synthetic data and test data platform: Fabricate, Structural and Textual for generating and de-identifying data.

   Developer platformsAutomation and agentsCoding
   FreemiumVisit Tonic.ai (official site)
6. 

   YData

   YData offers the Fabric platform and a Python package for automated data profiling and synthetic data generation for ML teams.

   Developer platformsProductivity
   FreemiumVisit YData (official site)

MOSTLY AI FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

Image credits

• Logo: from d2maf6kvsfcxd2.cloudfront.net · fetched 24 Oct 2026 · Vendor trademark, used only to identify the product; removed on request
• Cover: none collected yet, so a generated tile is shown.

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