NovaSynth is a pre-production testing platform for AI agents that uses synthetic users across real SIP phone calls, LiveKit audio, and chat. It helps teams rehearse multi-turn interactions, surface failures, and validate fixes before releasing agents to customers.
NovaSynth is a pre-production testing platform for AI agents. It creates synthetic users with defined goals, moods, accents, languages, interruptions, and adversarial behaviors, then sends them through voice or chat interactions with an agent. The purpose is to rehearse complete conversations, identify failures before release, and validate fixes without calling a live production system.
The platform supports real SIP telephony, LiveKit audio, and chat testing. Runs can be organized across persona and scenario combinations, captured as traces, and scored to help teams investigate problems in multi-turn agent behavior.
Define callers by personality, background, language, behavior, goals, moods, accents, and interruptions. NovaSynth can also suggest edge cases from agent context such as prompts, product requirements, workflows, and documentation.
Test agents through SIP calls using Twilio, Plivo, or Vobiz, LiveKit real-time audio, and chat over HTTP. Voice tests use real telephony, audio, and latency rather than only mocked transcripts.
Run persona-by-scenario matrices under a shared batch and compare results together. Concurrency can be increased for load testing, with the site documenting support for up to 2,000 concurrent lines when provisioned for that use.
Reads can be replayed and writes can be sandboxed, allowing teams to exercise agent decisions end to end without sending write operations to production systems.
Synthetic calls are captured as full traces, including audio, and scored with more than 30 voice AI metrics. Noveum's wider evaluation platform lists 112 calibrated metrics across areas such as task progress, safety, hallucination, and conversational quality.
The workflow connects persona and scenario setup with scorers, root-cause investigation, recommendations, and a later validation run so teams can check whether a change resolved the observed failure.
A team preparing a phone-based agent can call a test number or staging SIP endpoint with synthetic customers before launch, exposing failures in turn-taking, de-escalation, interruptions, silence handling, and recovery.
Teams can run prompt-injection probes and other deliberately difficult conversations to check whether an agent refuses unsafe requests and preserves its intended boundaries.
After changing a prompt, model, workflow, or tool, teams can rerun comparable persona and scenario batches to identify behavioral regressions across complete multi-turn journeys.
Engineering teams can raise concurrency to examine how an agent behaves under many simultaneous calls. The source notes that large load runs should be provisioned in advance.
Teams testing HTTP chat agents can use synthetic conversations and credit-metered text runs to evaluate scenarios that do not require telephony, including topic switches and adversarial intent.
No. NovaSynth is described as a pre-production product. It calls the agent endpoint supplied by the team, such as a test number, staging SIP endpoint, or unreleased agent. Live production evaluation is described as a separate post-production module.
For a single-agent architecture, the site recommends providing the system prompt along with a PRD, BRD, workflow documentation, or other material describing the agent's intended behavior. If the prompt cannot be exposed, teams can provide a description of the agent instead, though recommendations may be less precise. For multi-agent systems, the site recommends SDK integration so context can come from traces.
The site lists SIP through Twilio, Plivo, and Vobiz; LiveKit; Pipecat; LangChain and LangGraph; OpenAI and Anthropic SDKs; chat over HTTP; and custom or ground-up agents connected through an SDK or lightweight hooks around LLM calls.
Yes. The product describes replaying reads and sandboxing writes so a changed decision can be exercised end to end while write operations do not reach production systems.
NovaSynth is available on all listed Noveum plans but is credit-gated. The pricing page states that voice testing uses 25 credits per call minute and text testing uses 10 credits per conversation; monthly credits reset each billing cycle, while purchased add-on credits do not expire.
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