OneStream Software / onestream.com
AI-powered financial close, reporting, and planning platform for large enterprises that unifies financial consolidation, planning, reporting, and analytics with AI analysis and process automation.
Pricing
Free
Free plan
No
Category
Developer Tools
Platforms
1
Free plan
No
API access
No
Open source
No
Platforms
1
OneStream is an enterprise financial close and planning platform that unifies what many large organisations accomplish with multiple separate systems — financial consolidation, intercompany eliminations, planning and budgeting, financial reporting, and analytics — in a single extensible platform.
Mariner, OneStream's AI copilot, applies generative AI to financial workflows — generating variance commentary on financial results, answering questions about financial data in natural language ('what are the top 5 drivers of gross margin decline this quarter?'), and drafting narrative sections of financial reports from underlying data.
Financial close automation identifies and resolves intercompany reconciliation exceptions, automates journal entry posting for recurring entries, and monitors close task completion — reducing the manual effort and cycle time of the monthly financial close process.
AI anomaly detection surfaces unexpected patterns in financial data during the close process — flagging potential errors, unusual transactions, or missing data before financial statements are finalised, reducing restatement risk.
OneStream's extensible platform allows companies to add modules for specific industry reporting requirements (insurance regulatory reporting, bank regulatory capital calculations, ESG disclosure) without separate systems — one platform for all financial reporting needs.
With its 2024 IPO and customers including Groupon, FedEx, and Hyatt, OneStream validates across diverse enterprise industries for complex financial close requirements.
OneStream AI runs as llm assistant software built around text and data workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on web.
The capabilities that matter most for teams evaluating OneStream AI.
Generates variance commentary, answers natural language financial questions, and drafts financial report narratives — reducing manual writing during close and reporting cycles.
Automates intercompany reconciliation, journal entry posting, and close task management — reducing manual effort and cycle time in monthly and quarterly close processes.
Surfaces unexpected patterns in financial data during close — flagging potential errors, unusual transactions, and missing data before financial statements are finalised.
Enterprise licensing. No public pricing. Annual contracts. Recently IPO'd (2024). Demo available.
Model
Enterprise
Starting price
Free
Free trial
Yes
Oracle EPM (Hyperion) is the legacy incumbent for enterprise financial close. SAP BPC provides planning and consolidation within SAP. Anaplan (rank 561) focuses more on operational planning. Workiva (rank 562) focuses on financial and ESG reporting and disclosure.
A side-by-side look at the closest alternative in this category.
Key facts about model providers, platforms, and team support.
Model Provider
OpenAI, OneStream
Platforms
Web
Deployment
SaaS
Integrations
SAP, Oracle ERP, Workday Financials, Anaplan, API
Team Collaboration
Yes
Launch Year
2023
Compliance signals and data-handling notes as reported by the vendor.
SOC 2 Type II. ISO 27001. GDPR compliant. SOX compliance support. Enterprise data handling agreements.
Financial consolidation and planning data processed on OneStream's cloud infrastructure under enterprise data handling agreements.
Verified reviews from signed-in users, stored in the backend and averaged into this tool's rating.
Editorial Verdict
OneStream is the best AI financial close and planning platform for large enterprises wanting to unify consolidation, planning, and reporting with AI narrative generation and anomaly detection in one extensible platform.
Last verified July 24, 2026.
Enterprise licensing. No public pricing. Annual contracts. Recently IPO'd (2024). Demo available.
Enterprise only. Custom pricing based on modules and users. No public pricing. 30-day POC available.
SOC 2 Type II. ISO 27001. GDPR compliant. SOX compliance support. Enterprise data handling agreements.
SOC 2 Type II. ISO 27001. GDPR compliant. Enterprise data handling agreements.
Financial consolidation and planning data processed on OneStream's cloud infrastructure under enterprise data handling agreements.
Review o9's data handling policy. Planning and financial data processed on o9's cloud infrastructure under enterprise data handling agreements.
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