Refuses to guess
No guesswork or sycophancy. Deterministically verified reports ensure figures and statistics are present in your data.
Probably data system / Public preview 0.1
PRB_SYS / 001 Encrypted Local-first Deterministic
Your data stays local
Sensitive data stays entirely on your machine or network while reasoning happens in the cloud.
Built for scale
Quickly explore billions of rows without turning every question into a data engineering project.
Introducing probably
The Verifiable Data Agent
We’ll prove it.
Questions move through a visible chain of reasoning, computation, and verification - supported by data, source awareness, and unique business context.
QUESTION / 001
What changed enterprise retention?
01Interpret the questionready
02Select cohortsready
03Define controlsready
PLAN BUILT3 OPERATIONS
Complex analysis from plain language.
Probably translates your request into a rigorous, inspectable plan and analysis.
ROWS SCANNED1,847,203,9914.18 SEC
GROUPCOMPARECONTROL
The engine calculates. The model does not.
Precise local computation engine handles statistics at warehouse scale.
CLAIM / 04
Enterprise retention increased 8.4%.
Value matched01
Cohort matched02
Evidence attached03
OUTPUT GATEVERIFIED
Every claim, verified.
Cited values are checked against the execution trace before approval.
CSVrevenue.csv
PGproduction
SFfinance
BQevents
PROBABLYONE WORKSPACE
One tool for all your data sources.
Work across local files, PostgreSQL, Snowflake, BigQuery, and more.
customerrevenueregion
42811$18,420NA
42812—EU
42813$942,001APAC
MISSING 0.8%OUTLIER 1 ROW
Find problems before they impact conclusions.
Get alerted to outliers, missing values, and inconsistent formats before problems compound.
CLOUD AIreasoning request
PLAN ONLY
YOUR MACHINE / NETWORKLOCAL
COMPUTE ENGINE CSVDBPIIData never leaves your environment.
Cloud LLM's help reason while sensitive source data stays local.
One system:
CSVJSONParquetExcelPostgreSQLSnowflakeBigQuery
Local files + warehouse scaleThe Probably doctrine
Accuracy
over vibes.
01AskUse natural language
02ComputeWork over real data
03VerifyCheck every result
04InspectKeep the evidence
System notes / FAQ
Questions are
the interface.
01How is this different from ChatGPT or Claude?+
Chatbots are designed to seem helpful and make you feel good.
Most of the numbers they produce are made up.
Probably is a purpose-built data agent capable of accurately analyzing large amounts of data via rigorous statistics.
It will not hallucinate math and it will report only what the data supports.
02Can I trust the answers for high-stakes decisions?+
Accuracy and verifiability are foundational design constraints of this product.
Every action the agent attempts is run through a series of deterministic validators.
All outputs are checked letter for number against the actual computation traces executed by the engine.
Any outputs that fail validation are rejected for revision. You can see this happening live in the product. It's pretty cool.
Once the agent builds an artifact, that calculation is persisted and can be reproduced across any client in your organization.
03How much does it cost?+
Probably is extremely affordable; you can use it on a pay-as-you-go basis or via a subscription depending on your needs.
04What if I need an answer to a question right now?+
No problem. Upload a data file or quickly connect to any data warehouse securely, ask your question, and get human-grade charts and reports within seconds.
No waiting for the data team, and no need to learn another complex tool. Best of all, no need to teach yourself statistics.
05Do I need my data team to set this up?+
Start immediately with any CSV, Spreadsheet, JSON, or Parquet file that you have access to. Probably can handle as much data as you can fit on your hard drive or your data warehouse. No row limits, no size limits.
When you're ready to connect to your data warehouse, just ask your team for credentials and you'll be up and running in minutes.
06What types of files are supported?+
CSV, JSON, Parquet, and spreadsheet files work out of the box with no setup required.
You can also connect directly to Snowflake, BigQuery, Postgres, MySQL, MariaDB, ClickHouse, RisingWave, and more.
Support for PDF and more coming soon.
07What about data security and competitive intelligence?+
All analysis happens locally on your machine and your files never leave your control. No cloud uploads, no vendor access to your competitive data. Not even we can see it.
Cloud LLMs only power the reasoning—your data never leaves your device.
08What if my question is too complex?+
It won't be!
Just ask in plain language. The agent handles complex analysis behind the scenes and gives you clear answers. If it can't answer based on your files, it tells you exactly why—no guessing, no assumptions.
Probably never silently ignores, transforms, or modifies any of your data without explicit instruction.
