Ring Attention Explained: Distributing Attention Across GPUs
Ring attention enables million-token contexts by distributing attention across GPUs. The 2026 implementations and what they enable.
7 min read
Archive page 619 of 1230
AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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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
From Single-Turn to Multi-Day Agents: The 2026 Spectrum
Agent workloads span single-turn responses to multi-day autonomous runs. The 2026 architectural patterns differ sharply at each scale.
8 min read
SLA Engineering for AI Systems: What's Achievable in 2026
Measurable, defensible SLAs for AI systems in 2026 — what is realistic, what is aspirational, and how to set them honestly.
7 min read
Small Language Models That Beat GPT-4: Phi-4, Gemma-3, and SmolLM-3 Benchmarks
By 2026, sub-10B models beat 2024-era GPT-4 on most benchmarks. The Phi-4, Gemma-3, and SmolLM-3 family compared head-to-head.
8 min read
Spam + Robocall Mitigation: CallSphere vs Vapi Reputation Systems
STIR/SHAKEN, branded calling, opt-in lists, carrier reputation. How CallSphere builds outbound trust vs Vapi defaults. Real-world spam-flag remediation.
15 min read
Sparse Attention Patterns: Sliding Window, Longformer, BigBird Today
Sparse attention patterns are back in production for long-context inference. The 2026 implementations and where each pattern wins.
7 min read
Speech-to-Text Confidence Thresholds for Production Voice Bots
ASR confidence scores are noisy but usable when calibrated. The 2026 patterns for threshold tuning and confidence-driven UX in voice bots.
8 min read
Streaming RAG: Generating While Still Retrieving
Latency-sensitive RAG can begin generating before retrieval completes. The 2026 streaming-RAG patterns and where they pay back.
8 min read
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