The Butter Blog

Engineering deep dives, product updates, and thoughts on the future of voice interfaces.

2026-02-04•Shobhit

Under 500ms: How to Architect Ultra-Low Latency Voice Agents

In voice AI, latency is the difference between a fluid conversation and an awkward interaction. Discover how we optimized every millisecond of the stack.

LatencyPerformanceReal-timeArchitecture

Read Post

2026-02-03•Butter AI Team

The True Cost of AI Voice Agents: A 2026 Breakdown

AI voice agents cost $0.04-$0.33/min in 2026. Learn the true pricing breakdown for STT, TTS, LLM, and platform fees plus how to save 50-65%.

AI Voice AgentsPricingCost BreakdownVoice AILLM Costs

Read Post

2026-02-01•Shobhit

Build vs. Buy: Why Most Engineering Teams Fail at Custom Voice AI

Developing a production-ready voice AI orchestrator is harder than it looks. Learn why the 'build' route often leads to a black hole of engineering hours.

EngineeringVoice AIProduct ManagementSaaS

Read Post

2025-01-31•Shobhit

Why Multi-Model Agents Are the Future of Voice AI

Why locking yourself into just GPT-4 or just Claude is a mistake for production voice agents.

Voice AILLMsEngineering

Read Post