Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Jensen Huang's GTC 2026 keynote declared agentic AI at an inflection point. Here's what the shift from chatbots to autonomous agents means for developers and enterprises.
Vapi orchestrates STT, LLM and TTS as separate services — fast, but you pay 3 vendor markups. Collapse the stack to Twilio + GPT-4o Realtime and own the orchestration.
Sierra, Intercom Fin ($0.99/resolution), Zendesk ($1.50–2.00), Salesforce Agentforce ($2.00). The math, the gotchas, and why under 10% of vendors do it but 61% will by end-2026.
Strict JSON schemas turn flaky agent outputs into provable contracts. We compare OpenAI's strict structured-outputs mode with Anthropic's tool-as-schema pattern, list the 2026 gotchas (every field required, additionalProperties false, no $ref), and show CallSphere's recipe across 37 agents.
Some AI voice and chat agents are software-as-a-medical-device under EU MDR (2017/745). Here is how Rule 11 classification, IEC 62304, and the AI Act interact for healthcare voice in 2026.
Encryption is only as good as the keys. Here is how a HIPAA-aligned AI voice platform structures KMS, HSM, BYOK, and key rotation for OpenAI, Anthropic, Bedrock, and Azure under 45 CFR 164.312 in 2026.
AssemblyAI Universal-3 Pro Streaming hits ~150ms P50; Deepgram Nova-3 sub-300ms. We benchmark streaming vs batch, partial vs final transcripts, and when to skip ASR entirely with a multimodal Realtime model.
smolagents fits its entire core in under 1,000 lines and beats GPT-4 Turbo by 6x on GAIA. Here is what makes the CodeAgent loop tick and when to pick it for production.
Effective onboarding reduces first-month churn by 45% through rapid value demonstration. Here is why the modal-and-tooltip product tour is dead and what a conversational onboarding tour replaces it with.
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