OpenAI Realtime API: How CallSphere Ships Faster Than Vapi
Direct OpenAI Realtime + Agents SDK = thinner stack vs Vapi's vendor middleware layer. CallSphere ships voice agents in days, not sprints.
9 min read
Archive page 626 of 1224
AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Enterprise CIO Guide: GPT-5.5 Release — What Changed for Agent Builders
Enterprise CIO Guide perspective on GPT-5.5 ships with smarter routing, faster tool use, and expanded thinking budgets — here is what matters if you are building agents.
9 min read
Enterprise CIO Guide: OpenAI AgentKit 1.0 — The Hosted Agent Runtime
Enterprise CIO Guide perspective on AgentKit 1.0 is OpenAI's bid to own the agent runtime layer — visual builder, hosted state, and one-click deploy.
9 min read
SMB Founder Playbook: LangGraph 1.0 — The Agent Orchestration Library Hits Stable
SMB Founder Playbook perspective on LangGraph's 1.0 release stabilizes the API and adds the production primitives that early adopters had been hand-rolling.
9 min read
Long-Horizon Agent Tasks: Why 90% Fail Past Hour Three (and How to Fix It) — Long horizon tasks
Long horizon tasks: long-horizon agent runs collapse for predictable reasons. A 2026 teardown of failure modes and the architectural patterns that actually keep agents on track.
9 min read
Enterprise CIO Guide: OpenHands — The Best Open-Source Coding Agent in 2026
Enterprise CIO Guide perspective on OpenHands' April 2026 release pushes open-source coding agents past 67% on SWE-bench Verified.
9 min read
Enterprise CIO Guide: OpenAI Swarm 2.0 — Handoffs Done Right
Enterprise CIO Guide perspective on Swarm 2.0 cleans up the original prototype into a real production library for agent handoffs.
9 min read
CrewAI for Real-Estate Listing Research Crews: Production Build
A Texas brokerage using CrewAI to assemble multi-agent research crews for listings, comps, and outreach. Architecture, ROI, and the compliance posture that worked.
9 min read
Agent Evaluation Beyond Accuracy: Trajectory, Tool-Use, and Cost Metrics
Accuracy alone misses what is actually wrong with your agent. The 2026 metrics teams use to evaluate agentic systems before and after deployment.
8 min read
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