What is our primary use case?
My main use case for Palantir Foundry is for decision intelligence. It functions as an operational operating system that connects fragmented data into a single ontology for our insurance provider, utilizing principal and component analysis.
An example of how I use Palantir Foundry for decision inclusions or connecting fragmented data is through the core mechanism of data connections to building Pipeline Builder, then using ontology chain. Data connection ingests data from different disparate sources such as Zabbix, health signals from Zabbix, and PostgreSQL external APIs. Now living in separate systems, Foundry pulls this into a unified raw dataset layer without needing custom ETL glue code. I transform those raw inputs into clean, joined datasets, and the ontology is where fragmentation is truly resolved. Instead of querying disparate tables, every entity, device, and incident becomes a pipeline run that functions as an object type with properties and links to related objects. A network object, for example, links to its Zabbix alert objects, its health metrics time series, and its owner, all the exact type of multi-source join that I can rebuild, rather than writing SQL joins every time. The ontology makes these relationships first-class.
In our infrastructure data spread across Zabbix, PostgreSQL, and Zyco, the classic problem is that each system has its own ID scheme, update cadence, and schema. Palantir Foundry's ontology solves this by creating a canonical object model on top. I do not migrate or replace the source systems; I overlay a unified semantic layer. Every downstream consumer reads from that layer and not from the raw source directly.
What is most valuable?
The best features Palantir Foundry offers include the ontology, which is not just a tool. Palantir Foundry can collect data from an existing system without modifying those systems, and once the ontology is ready, I can create a business application, analyze data, or build AI models on top of it. Team report projects' speed becomes faster than using multiple separate values. The ontology is not just a data model; it is a semantic layer that represents real-world entities, relationships, and decisions that act on them. Palantir Foundry supports ingestion, transformation, semantic modeling, analytics, and operational application development in one platform. This reduces the need to switch between separate tools for pipelines, governance, and downstream consumption. It is well-suited to use cases where analytics output must be embedded into operational processes rather than limited to dashboards.
Using this semantic layer in Palantir Foundry connects the fragmented data that meant writing JSON logic repeatedly across dbt models, Snowflake views, and Airflow DAGs. Every new consumer, such as a dashboard, a report, or an API, needed its own interpretation of what a device, incident, or transaction meant. Schema changes broke downstream consumers silently. Governance aimed to stitch together from dbt docs and Airflow audit logs and manual metadata. With Foundry's semantic layer, once the device object type is defined with properties from Zabbix, links to alert objects, and links to pipeline objects, every downstream tool, workshop, contour, API, or code is declared and reads from the same canonical definition. I can change the schema once in one place that lives on the object, not scattered across application code.
I am adding features such as Foundry Branching and data connection source agnosticism, particularly the Contour Aggregation Branch. Most people treat Contour as a BI tool, but it is actually more powerful than that. The Aggregation Branch lets me perform multi-step analytical transformations interactively and then publish those as a dataset back into Foundry. An analyst's exploratory work becomes a reusable data asset, not a one-time report. The boundary between BI and data engineering is resolving.
Using Palantir Foundry has positively impacted my organization because I studied Foundry deeply and built the manual equivalents of what Foundry formulizes across connections. I understand what I absolutely need to document, customer outcomes, and what I can totally solve because I know exactly what it costs to solve them.
What needs improvement?
Palantir Foundry has a steep learning curve and onboarding.
Going deeper, there are additional improvements needed in real engineering solving, such as code reuse and language lock-in. Palantir's lens compute modules were introduced specifically to solve the problem of integrating existing code into Foundry instead of rewriting the logic in Foundry's supported language. I can now containerize code and deploy it directly, with the platform handling scale, authentication, and connection automatically, but this is still maturing. If my team has production-grade Python modules, Kafka consumers, or consumer ML models, I had to prolong rewriting in Foundry's transformation paradigm and maintain a parallel codebase. Neither is acceptable at scale. Improvement is still needed for full parity between containerized workloads and native Foundry transforms in terms of lineage tracking, monitoring, and ontology write-back.
Debugging and observability in pipelines is one of the major drawbacks. However, the platform has many good features and is a good foundation to build upon in the future.
For how long have I used the solution?
I have been using Palantir Foundry for three years.
What do I think about the scalability of the solution?
Palantir Foundry is a highly scalable solution.
How are customer service and support?
The customer support is great.
How was the initial setup?
I believe the pricing, setup cost, and licensing could be lower.
What was our ROI?
I have seen money and time saved, but we need to yet see the return on investment.
Which other solutions did I evaluate?
Before choosing Palantir Foundry, I evaluated other options, including Snowflake and Tableau.
What other advice do I have?
Palantir Foundry's AI capabilities, governance, and security are top tier as it is a fully locked environment and is best for government organizations where data security is a major consideration.
When I use Palantir Foundry's AI features, I find the outputs to be reliable and accurate and have not run into any issues; I trust the results. This is one of the most nuanced topics in the Foundry ecosystem. When the industry pivoted to LLM, the prevailing approach was pointing probabilistic engines at vector databases via standard RAGs, yielding results that were semantically plausible but structurally ungrounded with an unacceptably high hallucination rate and no distinction of facts. Palantir's approach diverges entirely; instead of retrofitting an LLM onto a flat data warehouse, AIP embeds LLM directly into a bidirectional knowledge graph. The resulting architecture dictates that AI interacts with the enterprise through a strictly governed semantic layer that natively understands relationship logic and operational constraints. In plain terms, standard RAG retrieves text chunks and lets the LLM guess connections, whereas OAG retrieves typical ontology objects with live relationships and lets the LLM reason over structured truth. The accuracy difference is architectural, not just prompt engineering.
I would advise others looking into using Palantir Foundry to get in early as soon as you can. If you are mature, do not. I give this review a rating of eight out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner