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vellum. ai > blog > best-cofounder-alternatives

10 Best Cofounder Alternatives in 2026

8+ hour, 25+ min ago  (1648+ words) Cofounder. co is a cloud-based multi-agent platform that assembles a team of six AI specialists " covering growth, product, sales, finance, marketing, and operations " calibrated to your business and founder type. Agents introduce themselves, learn your business context, and begin executing…...

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vellum. ai > blog > best-open-source-personal-ai-assistants

8 Best Open-Source Personal AI Assistants in 2026

8+ hour, 25+ min ago  (1642+ words) Open-source personal AI assistants are tools that take real actions in the world on your behalf " scheduling, messaging, file management, browsing, code execution " while keeping your data on your own machine, under your own control. An open-source personal AI assistant…...

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vellum. ai > blog > claude-opus-4-7-benchmarks-explained

Claude Opus 4. 7 Benchmarks Explained

2+ week, 5+ day ago  (1758+ words) Anthropic dropped Claude Opus 4. 7 today, and the benchmark table tells a focused story. This is not a model that sweeps every leaderboard. Anthropic is explicit that Claude Mythos Preview remains more broadly capable. But for developers building production coding agents…...

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vellum. ai > docs > getting-started > your-first-skill

Your First Skill - Vellum Docs

3+ week, 3+ day ago  (434+ words) Skills are how your assistant learns to do new things. They're like apps for your assistant " each one gives it a new capability. Your assistant comes with 40+ built-in skills. But the best part? You can teach it new ones just…...