Vapi vs Retell vs Bland (2026): The Real Production Tradeoffs
Vapi (62M monthly calls), Retell (~600ms latency), Bland (volume scale). The honest 2026 comparison and where each is the wrong choice.
10 min read
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AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Financial Advisor Voice AI 2026: KYC Pre-Screen + Discovery Call Booked
Independent RIAs and advisors lose qualified prospects to slow callbacks. Here is how a 2026 voice agent runs a structured pre-screen, soft-AUM ask, and books a discovery call cleanly.
10 min read
De-Identifying AI Conversation Logs: Safe Harbor vs Expert Determination
AI voice and chat logs are a treasure trove for analytics and a liability landmine for HIPAA. Here is how the two de-identification methods at 45 CFR 164.514 actually apply to multi-turn AI transcripts.
11 min read
Cloudflare Agents SDK 2026: Durable Objects, MCP, and Code Mode at the Edge
Each Cloudflare agent runs on a Durable Object with its own SQLite, WebSockets, and scheduling. Agents Week 2026 shipped MCP, Code Mode, and 10GB SQLite per agent.
11 min read
Qualcomm Snapdragon Hexagon NPU for On-Device Voice (8 Gen 5 + Snapdragon X)
Snapdragon 8 Elite Gen 5 NPU delivers 46% faster AI on-device. Run Whisper-large-v3-turbo via QNN + ONNX Runtime, Hexagon Tensor Processor in HTP burst mode. Production blueprint.
11 min read
Enterprise AI Agent Procurement Playbook 2026: 5 Criteria, 12 Industries, Real Gates
Enterprise AI agent buyers need governance-first evaluation, 30-point scorecards, and quarterly re-verification. The 2026 procurement playbook for CIOs and CTOs.
11 min read
Public AI Voice Case Studies in Insurance 2026: Aviva's £60M, Lemonade's 3-Second Claim
Aviva saved £60M ($82M) on motor claims with 80+ AI models. Lemonade pays claims in 3 seconds. Aspire's Liberate FNOL launched March 2026. Real numbers, real builds.
11 min read
Where Agentic Product Development Is Heading Next
Longer-horizon agents, richer MCP ecosystems, agent-to-agent work, and how engineering teams should prepare for the next agentic wave.
7 min read
Where Claude agents are heading next and how to prepare
Where Claude Code, the Agent SDK, MCP, and Skills are heading next, and how to prepare your team and systems now. A 2026 forward-looking guide.
7 min read
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