Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Krisp BVC went paid May 1 2026, RNNoise is unmaintained, and WebRTC's built-in NS is not enough for production voice AI. Here is the 2026 architecture for browser noise suppression.
Learn how to build an AI tutoring agent that assesses student knowledge, adapts difficulty in real time, and uses scaffolding techniques to guide learners through complex topics.
Learn how coreference resolution enables AI agents to track pronouns and references across conversation turns, with practical implementations using spaCy, neural models, and LLM-based approaches.
Build resilient applications that gracefully handle OpenAI API errors with exponential backoff, rate limit management, circuit breakers, and fallback strategies.
Learn how to securely manage OpenAI API keys using environment variables, key rotation, organization and project keys, proxy patterns, and secrets management.
Implement accurate usage-based billing for an AI agent SaaS platform, including real-time metering of LLM tokens and API calls, Stripe integration for invoicing, and strategies for cost transparency.
Build an AI agent that aggregates logs from multiple services, extracts patterns using clustering and LLM analysis, correlates events across systems, and generates actionable alerts.
Understand and reduce the environmental cost of AI agent systems with carbon tracking, inference optimization, model selection strategies, and practical energy-efficient architectures.
Build an AI agent that helps customers check loyalty points balances, browse reward catalogs, redeem rewards, and understand how to earn points faster — increasing program engagement and customer retention.
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