Comparison
Microsoft Copilot vs Vespper
How does Vespper compare to Microsoft Copilot for professional document creation? See the full feature-by-feature breakdown below.
Vespper leads in 9 of 12 capabilities evaluated, including template-aligned generation, multi-model support, visual citations, and hands-on support.
| Capability | Vespper | Copilot |
|---|---|---|
Document-agnostic (any doc type) | ||
AI that can search, read, and analyze documents across multiple steps and execute long-horizon tasks Copilot can be extended with Copilot Studio/custom agents and Microsoft Graph connectors; this row refers to out-of-the-box long-horizon, tool-using workflows inside the editor. | ||
High-fidelity document generation aligned to complex templates Section-by-section generation that preserves template structure and supports large, regulator-issued templates. | ||
Automatic prompt generation per section Vespper automatically generates and manages per-section prompts in structured generation mode. | ||
Multi-model support / BYO LLM Supports selecting among multiple frontier models per assistant and private model endpoints in enterprise deployments. | ||
Large-scale data ingestion (GBs of docs) Both support large corpora; behavior depends on connectors, indexing configuration, and tenant setup. | ||
Advanced file indexing and accurate retrieval Copilot retrieval depends on Microsoft Search/Graph configuration; Vespper uses built-in hybrid keyword + semantic retrieval optimized for citation-grade lookup. | ||
Visual citations (bounding boxes in source) Citations open the source file and highlight the exact supporting passage/table with a bounding box. | ||
Reusable template libraries Managed template libraries with structured generation and admin locking. | ||
Source traceability (inline and inside the document) | ||
Rapid incorporation of customer-requested features | ||
Hands-on, founder-led support |
Supported Partial Not supported
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