Pritesh Kumar

Founder at Dograh AI - Open source Voice Agent Builder. Github - https://github.com/dograh-hq/dograh

22 Apr 2026

Top Observability Tools in Voice AI: The 2026 Landscape

A practical breakdown of the top voice AI observability tools in 2026- Tuner, Roark, Hamming, Coval, and Cekura. What each does best across simulation, monitoring, CI/CD validation, and red-teaming, plus how to pick based on your stage.

Free alternatives to Vapi: 4 OSS options in 2026

17 Apr 2026

Free alternatives to Vapi: 4 OSS options in 2026

The four free alternatives to Vapi are Dograh, Pipecat, LiveKit Agents, and Vocode. All open source, all self-hostable, and none charge a per-minute platform fee on top of your AI vendor bills.

03 Apr 2026 AI Agent

The In-Context Learning Problem in Multi-Node Agents: How History Poisons Tool Calls

When a node in your agent workflow calls a function that was never registered - silently, confidently, and without errors - the bug is not in your code. It is in what you are feeding the model between nodes. Here is the failure mode, why evals miss it, and the fix we shipped at Dograh.