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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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Prompt compression reduces tokens 5-10x at modest quality cost. The 2026 patterns and where compression breaks.

7 min read

Tool-calling reliability is mostly a prompt-engineering problem. The 2026 patterns that consistently improve function-call accuracy.

8 min read

Ten concrete defensive patterns against direct and indirect prompt injection in production agents in 2026.

8 min read

Provider lock-in is real but manageable with the right architecture. The 2026 mitigation patterns and what to abstract.

7 min read

LLM provider pricing has matured beyond per-token list pricing. The 2026 commitments, reserved capacity, and spot tiers worth negotiating.

7 min read

Provider SLAs vary widely. The 2026 reliability picture across major providers, with measured uptime and incident patterns.

7 min read

torch.compile delivers big speedups when it works and weird breakage when it does not. The 2026 production guide for when to enable it.

7 min read

Lightning vs raw PyTorch for production AI in 2026 — productivity, performance, and the trade-offs that matter at scale.

7 min read

Activation checkpointing trades compute for memory. The 2026 PyTorch patterns and where the tradeoffs actually pay off.

7 min read

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