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Gradient

A voice AI operating system for building, deploying, and refining phone-based voice agents without stitching separate tools

www.usegradient.devAI AgentsMar 2026Gradient, Inc.

The product is a voice AI operating system for building, deploying, and refining phone-based voice agents, solving the need to stitch together separate builders, telephony, evaluation, and logging tools. It sells to developers and B2B teams responsible for shipping customer-facing voice agents. It is positioned as a single unified platform where tools, knowledge bases, telephony, traces, and rubric-based evaluations live together with versioning pinned to phone numbers, delivered as a SaaS platform with API access and usage-based pricing.

Key features

  • Build voice agents
  • Deploy to real phone numbers
  • Integrated telephony
  • Bind tools and skills per step
  • Bind knowledge bases per step
  • Version pinning to phone numbers
  • Unified call log
  • Full call trace capture
  • Rubric-based scoring
  • Scenario-matched evaluation
  • Live call monitoring
  • Voice testing
  • Unlimited agents and versions
  • Unlimited seats and scenarios
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  • Software developers
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