YiG product line

Yig is a family of finance AI products built around reviewed drafts. The products share the human-approval principle, but their release status, runtime, and data paths differ. The Excel Add-in is a public beta; Thinker, Finance, and Enterprise remain an invite-only private-beta platform.

Which product fits which role

Operator role	Primary product	First reach for
Controller	Thinker + Finance	A GL reconciliation draft in the surface already open
FP&A lead	Thinker	Variance commentary in Slack, reviewed inline
Security reviewer	Enterprise	Audit log and reviewer-gate records
IT admin	Enterprise	Topology, surface scoping, reviewer authorisations

Need platform drafting? Start with Thinker. Need governance? Enterprise. Bottleneck is data? Add Finance. Want a self-serve Excel entry point? Use the Excel Add-in.

Yig Thinker — private-beta drafting engine

Yig Thinker is the drafting engine itself. A six-person SMB running their close in Slack does not need the controls a regulated bank needs. They need the agent in the conversation already open.

Forty-plus tools, multi-step planning, native chat integration. Runs in Slack, Teams, Feishu, Excel, and any terminal. Every output passes a reviewer before it ships.

Day 4 of March close, the FP&A lead messages @yig-thinker run variance_review for ACME US Q1 2026 in #fin-close. The draft lands in-thread with three flagged lines. She resolves each and approves.

Use Thinker if your team lives in chat or the CLI.

Yig Enterprise — governance, SSO, isolated deployment

Yig Enterprise is for organisations whose security team has to inspect what shipped before it ships. SSO, audit trail, role-based reviewer gating, and isolated deployment. Access is currently scoped through private-beta pilots.

A regulated EU bank’s security reviewer pulls the prior quarter’s audit log, walks each run from invocation to approval, and verifies the model provider against the approved DPA. Every prompt, tool call, and reviewer signature is in the trail.

Use Enterprise if your compliance team needs to inspect every prompt, tool call, and approval before you can deploy.

Yig Finance — Data integration and reconciliation

Yig Finance turns scattered source systems into one consensus the controller can sign. Structured extraction from PDFs and statements, automated reconciliation across ERPs and subledgers. Integrates with Thinker or Enterprise.

Day 2 of close, ACME’s German controller triggers an intercompany reconciliation across SAP, a NetSuite mirror, and a treasury workbook. Finance returns one matched schedule with twelve unmatched lines flagged for judgment.

Use Finance if your bottleneck is data wrangling at month-end rather than drafting.

Office Add-ins — Yigcore inside Excel

The public-beta Excel Add-in puts Yigcore in the workbook without provisioning the wider platform. It supports bring-your-own-key model access, workbook chat, reviewed write actions, and =YIGAI() formulas. Workbook context goes directly to the selected provider or enterprise gateway; Yigcore is not an inference proxy. PowerPoint is planned but not released, and Word is not part of the current install path.

Day 8, an analyst preparing the audit committee deck inserts =YIGAI("draft commentary for variance in row 14") next to the variance schedule. The draft renders in the next cell. She edits the wording before the deck goes to the controller.

Use the Excel Add-in to try Yigcore without provisioning the private-beta platform.

How they fit together

Layer	Thinker	Enterprise	Finance	Add-ins
Drafting engine	✓	✓
Governance / SSO		✓
Data integration			✓
In-app surfaces	✓	✓	✓	✓

Treat each product’s public page as the source of truth for its current runtime and data path. The family shares a reviewed-draft product principle, but the Excel Add-in and the private-beta platform do not make identical deployment or persistence claims.