Prompt Engineering for Tool-Calling Agents: 10 Patterns That Work
Tool-calling reliability is mostly a prompt-engineering problem. The 2026 patterns that consistently improve function-call accuracy.
8 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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Innovaccer 2026: AI Agents at the Payer-Provider Interface
Innovaccer's CX AI agents handle 4M+ patient calls a month for health plans in 2026. We profile the deployments at major payers, the per-call pricing.
10 min read
Adaptive RAG: Dynamic K Selection Based on Query Difficulty
Easy queries need 3 chunks; hard ones need 30. The 2026 adaptive-K patterns that match retrieval depth to query difficulty.
7 min read
Custom CUDA Kernels via Triton for AI Workloads
When custom CUDA via Triton beats stock PyTorch ops in 2026 — the patterns, the tooling, and what production teams have shipped.
7 min read
AI Solution Architecture: From PoC to Production
The architectural transitions that take an AI project from a PoC to production-grade in 2026 — and the things teams routinely miss.
8 min read
Multi-Turn Dialogue Coherence: Why Bots Lose the Thread
Long conversations are where bots fail. The 2026 techniques for keeping coherence across many turns without infinite-context costs.
8 min read
Modal vs Replicate vs Baseten for Voice AI: When Self-Host Wins
Serverless GPU at $0.59–$3.95 per hour looks tempting until you measure cold start. Here is the honest break-even for self-hosting voice TTS or STT vs paying Deepgram or ElevenLabs.
12 min read
How Retail Stores in Las Vegas Use AI Voice Agents in 2026
Las Vegas retail inventory hit 70.7M SF in Q1 2026 with a 4.3% vacancy rate. Tourism + locals drive a unique multilingual call mix. Here is how a 2026 voice agent runs your storefront line.
9 min read
Self-Correcting RAG: CRAG, Self-RAG, and the Loop That Fixes Wrong Retrievals
Naive RAG retrieves wrong documents and answers from them confidently. The 2026 self-correcting RAG patterns that detect and fix bad retrievals.
8 min read
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