Mostly AI: Privacy-Safe Synthetic Data for AI and Analytics

Mostly AI was founded on the premise that traditional methods of anonymizing data are insufficient for today’s AI-driven environments. Conventional techniques like masking, tokenization and sampling either weaken the statistical value of data or fail to meet contemporary privacy standards. This limits the ability of teams to access datasets that can be fully utilized for development, rigorous testing, analysis and other functions particularly in highly regulated sectors. 

On this note, organizations need more accurate, privacy-preserving and production-ready datasets, especially as data privacy regulations grow stricter and artificial intelligence (AI) systems become more data demanding. 

Mostly AI delivers as a synthetic data platform that generates datasets for testing, developing or training machine learning models. 

The goal isn’t to replace real data entirely, but to provide an alternative that supports experimentation, model training and data sharing without risking exposure or non-compliance.

In this review, we’ll break down:

• Mostly AI’s core functionalities
• What features define mostly AI’s synthetic data platform
• How Mostly AI drives adoption in AI and analytics
• Mostly AI competitive advantage
• Limitations and considerations

If you’re working on privacy-safe analytics, AI model development or data sharing in regulated environments, this breakdown will help you evaluate whether Mostly AI is the right fit for your data strategy.

Mostly AI key product features

Mostly AI’s synthetic data platform is built to enable privacy-safe data access, maintain statistical fidelity, and support compliance in regulated environments. Each feature is designed to address specific challenges to enable compliant experimentation, safe data sharing and accelerated machine learning workflows. Some of the features include:

1. Synthetic Data SDK & Generators: The Synthetic Data SDK, an Open Source Python toolkit allows you to locally create, browse and manage the three key resources of the Mostly AI Platform: Generators, Synthetic Datasets and Connectors.
2. Privacy-Protection Mechanisms : With synthetic data, you can unlock the utility of your original data and at the same time protect the privacy of your subjects. While specific cases in the original data might increase the risk of re-identification, Mostly AI employs a number of privacy-protection mechanisms to help avoid such risks.
3. Differential Privacy Support : Mostly AI offers users the choice to train synthetic data generators with or without differential privacy (DP) guarantees. This capability is powered by the Opacus library which ensures robust DP training.
4. Seamless Integration: Offers capability to connect to external data sources (DBs, cloud storages).
5. Automated Quality Assurance: Produces automated in-depth reports for visual analysis with quality metrics for fidelity and privacy.
6. Advanced Training Options: Offers support for advanced training with GPU/CPU.
7. Broad Data Support: Handles mixed data types (categorical, numerical, geospatial, text, single-table, multi-table and time-series).
8. Multiple Model Types: Supports multiple model types (TabularARGN, LSTM and fine‑tuned language models).
9. Flexible Sampling: Supports up-sampling, conditional generation, imbalanced data handling and seed-based generation for targeted segments 

Mostly AI’s synthetic data platform capabilities

                                                     

At its core, Mostly AI equips teams with production-ready and privacy-safe datasets for testing, developing or training machine learning models. The illustration above captures Mostly AI’s main capabilities.

• Synthetic Data Generation: By enabling the creation of synthetic datasets, Mostly AI retains the significant statistical properties, correlations and distributions within the original structured data. This includes support for single-table or multi-table (relational) datasets.

• Privacy Risk Mitigation: The platform employs formal privacy-preserving methodologies to lower the risk of re-identifiable details with collected data.

• Synthetic Data Profiling and Diagnostics: Through this, clients can analyze feature-level comparison views, track deviations and monitor progress analytics across dimensions. Member-generated analyses that identify gaps help ensure all planned stages are completed precisely.

• Data Utility Evaluation: Automated processes ascertain the closeness between original datasets and their synthetic counterparts. These processes include estimation of statistical fidelity, such as feature distributions and correlation matrices, which help confirm data quality metrics for subsequent tasks in a pipeline.

• Integration and Deployment Options: Apart from traditional user interfaces, the platform has APIs, SDKs and other UIs tailored towards integration into development, testing or model training pipelines. Deployment may be cloud-based or on-premise depending on data governance requirements.

• Support for Imbalanced Data: Mostly AI includes options for amplifying underrepresented segments in synthetic data, making it useful for testing edge cases or training more balanced machine learning models.

These capabilities have been designed to support use cases where access to real data is restricted but accuracy and compliance with relevant regulations must still be maintained.

Use cases of Mostly AI in AI and analytics

Mostly AI’s synthetic data enables a range of applications across sectors. Some of the use cases include:

• Secure data sharing: Businesses can share datasets between teams, partners or cloud zones without compromising privacy, breaking down data silos that previously hampered collaboration.
• AI/ML development: Synthetic data can be used to train and test machine learning models when real data is not available or is too sensitive, accelerating model development cycles.
• Analytics enablement: Health providers, banks and insurance companies can perform advanced analytics on synthetic customer data sets without compromising privacy.
• Privacy compliant testing: Quality assurance teams, system migration teams and software sandboxing use realistic synthetic data without altering sensitive production data.
• Bias and fairness analysis: Researchers may generate synthetic data by adhering to a prescribed set of rules to prove algorithmic bias and ensure fair AI system outcomes.

These use cases reflect how synthetic data can be operationalized to support data-driven initiatives in environments with strict data governance and compliance requirements.

Strengths and competitive differentiators for Mostly AI 

As synthetic data gains adoption across industries, Mostly AI’s strengths lie in both technical implementation and regulatory alignment. Some of its strengths include:

• Technical excellence: The platform adopts generative models for the synthesis of structured data, consistently producing synthetic datasets that retain distributions, correlations and complex statistical interdependencies.
• Privacy compliance: Mostly AI’s privacy guarantees are backed by third-party audits and are formally verified, which makes it suitable for environments with strict regulatory oversight.
• Data utility preservation: Unlike traditional anonymization techniques, which often degrade data quality, Mostly AI maintains statistical relationships for meaningful analysis.
• Enterprise readiness: The platform has seen adoption in sectors such as banking, insurance and healthcare where data handling must align with strict compliance requirements and infrastructure standards.

Despite its strengths, Mostly AI’s capabilities come with constraints that should be evaluated before implementation.

Limitations and considerations for Mostly AI

• Data type focus: The platform principally covers structured and tabular data, with limited support for unstructured data types like images, text or audio.
• Edge case representation: While common statistical patterns are well-represented, rare edge cases or highly non-linear relationships may be underrepresented.
• Setup complexity: Generating high-quality synthetic data requires proper tuning and domain understanding. Complex schemas or skewed datasets may require manual intervention to ensure fidelity. 
• Budget constraints: For smaller organizations or use cases with limited complexity, it may not be feasible due to the cost of commercial-grade synthetic data generation.
• Domain-dependent: Extracting the maximum value from synthetic data is dependent on a clear understanding of the data’s use case and business context. Without domain knowledge, interpretation and downstream usage may be constrained.

These factors highlight the need for careful assessment when integrating Mostly AI into existing data workflows, particularly in edge use cases or resource-constrained environments.

Mostly AI alternatives 

The synthetic data space features a number of prominent competitors with differing strengths.

Each platform makes tradeoffs across privacy strength, data type support, automation and ease of integration. Here’s a side-by-side view of how Mostly AI differs and where it excels when compared to other platforms in the synthetic data market:

Category	MostlyAI	Hazy	Tonic.ai	Gretel.ai
Primary Focus	Privacy-preserving synthetic data for regulated industries	Financial services and GDPR-compliant synthetic data	Test data generation for dev and QA environments	Synthetic data generation and labeling, including unstructured data
Data Type Support	Structured and tabular data	Structured and tabular data	Structured, semi-structured, and limited unstructured	Structured, tabular, and unstructured (e.g., text)
Privacy Guarantees	Formal mathematical privacy checks and third-party audits	Emphasis on GDPR compliance and privacy-by-design	Focuses more on utility than formal privacy guarantees	Provides privacy tools, but privacy enforcement is developer-dependent
Key Strength	High utility + strong privacy for analytics and AI in regulated settings	Financial sector focus with automated privacy workflows	Developer-focused tooling and integration flexibility	Open-source SDKs and broad data format compatibility
Deployment Options	Cloud and on-premises	Cloud and private cloud	Cloud-native	Cloud-native, with open-source options

What‘s next

As regulations around data privacy keep changing and companies look for innovative methods to responsibly generate synthetic data, there’s a need to balance data utility with privacy compliance.

Platforms such as Mostly AI generate high-fidelity synthetic structured data, with clear strengths in statistical accuracy, privacy assurance and regulatory alignment.

While alternative platforms may offer broader data type support or open-source flexibility, Its tools are built for enterprise use cases where data sensitivity, model performance and legal compliance are all non-negotiable requirements.