Sol raises $4 million to build a proactive AI assistant for email-driven work

Proactive AI startup Sol has emerged from stealth with $4 million in funding. The round was led by General Catalyst and Nexus Venture Partners, with participation from DeVC, Peercheque and Kunal Shah.

The company plans to use the proceeds for research and development and go-to-market initiatives. Its R&D spending will cover LLM processing, tooling costs, talent and work with customers across geographies.

Founded in August 2025 by Anish Karan, Prateek Srivastava and Ranjith Nair, Sol is building an AI assistant that identifies commitments in emails. The product then works on the tasks needed to fulfill those commitments while keeping users in control of the final outcome.

Sol can handle tasks including research, document creation, presentation development, meeting scheduling and drafting replies. For example, an email commitment to send an analysis can trigger research and document creation, while a request to align with someone can lead to a meeting being scheduled.

Sol says its product is designed for professionals who manage large volumes of email. That includes founders, executives and people in sales, marketing, consulting, recruiting and agencies.

The key workflow shift is that Sol identifies commitments and context from email instead of requiring users to manually create tasks or repeatedly prompt an AI assistant. Users retain approval before anything is sent, scheduled or shared.

Sol operates in a dedicated computer environment and can use a browser to work across tools. It currently has a library of more than 100 skills to handle tasks linked to different commitments.

The funding comes as Indian agentic AI startups raised about $60 million in the first 4.5 months of 2026, compared with $144 million raised in 2025. Other funded companies in the space include Composio, which raised $24 million in Series A funding, and Kapture, which raised $10 million in a pre-Series B round.