RubricHQ vs Cekura
By Noor, Co-founder, RubricHQ · Reviewed August 29, 2026
The short answer
RubricHQ and Cekura both run synthetic test calls, score transcripts, and monitor production. RubricHQ adds a built-in prompt-optimization loop that rewrites prompts and pushes them to Vapi and Retell, plus natural-language Co-Pilot queries across your calls. Cekura has a longer track record and deeper compliance tooling for regulated call centers.
What Cekura is: Cekura (YC F24, formerly Vocera) is a QA platform for testing and monitoring voice and chat AI agents, with synthetic conversation testing and production drift detection. (www.cekura.ai)
RubricHQ vs Cekura: feature comparison
| Feature | RubricHQ | Cekura |
|---|---|---|
| Simulation channels | Phone, web, and text simulations | Synthetic voice and chat conversations |
| Scenario generation | Auto-generated from your agent prompt, plus a persona library | Auto-generated test cases from agent behavior and failure modes |
| Evaluation methods | Code-as-judge, LLM-as-judge, and audio metrics | LLM-based evaluation, deterministic checks (Conditional Actions), compliance rules |
| Production monitoring | Yes — live production call observability with drift alerts | Yes — live drift detection, CSAT, call-drop and sentiment tracking |
| Prompt optimization | Yes — diagnoses failures, generates prompt rewrites, pushes to Vapi/Retell | Metric Optimizer suggests fixes; no documented push-to-vendor |
| Ask-your-calls Q&A | Yes — natural-language Q&A across every call, metric, and tag | Not a documented feature |
| Supported providers | Vapi, Retell, LiveKit, Pipecat | Vapi, Retell, LiveKit, Pipecat, ElevenLabs, Bland |
| Pricing | Public — Starter $29/mo, Growth $499/mo, Enterprise custom | Self-serve plans plus enterprise; 7-day free trial |
| Self-hosting | Yes — on Enterprise | Not documented publicly |
Prompt optimization
RubricHQ closes the loop: it diagnoses why a batch of calls failed, generates a targeted prompt rewrite, re-runs the same suite to prove the change worked, and can push the new prompt straight to Vapi or Retell. Cekura's Metric Optimizer surfaces which metrics are slipping and suggests fixes, but applying them is manual.
Querying your call history
RubricHQ's Co-Pilot answers natural-language questions across every call, metric, agent, and tag — for example, "which calls had silence over five seconds and ended with the customer hanging up?" Cekura focuses on dashboards and predefined metrics rather than open-ended querying.
Compliance and regulated call centers
Cekura leans into compliance for regulated industries — HIPAA checks, recording-consent verification, and identity-verification rules are first-class. RubricHQ supports the same checks as code-as-judge rules you write, and adds audio metrics, but Cekura ships more of them out of the box.
Maturity and track record
Cekura went through Y Combinator (F24), has a public Launch HN thread, and an established base of voice-AI customers. RubricHQ is newer. If a long reference list and a large existing customer community matter to your buying process, that is a point for Cekura.
When Cekura is the better fit
- You run a regulated call center and want HIPAA / consent / identity-verification checks pre-built rather than authored as rules.
- A long customer reference list and YC pedigree carry weight in your evaluation.
- You test chat agents alongside voice and want one vendor for both from a team that has focused on it longer.
Frequently asked questions
Is RubricHQ a good Cekura alternative?+
Yes. RubricHQ covers the same core workflow — synthetic test calls, transcript scoring, and production monitoring — and adds a prompt-optimization loop that rewrites and redeploys prompts, plus natural-language Co-Pilot queries. Cekura is the stronger choice if you need deep pre-built compliance tooling for regulated call centers.
What was Cekura called before?+
Cekura was formerly named Vocera. It is a Y Combinator F24 company.
Do RubricHQ and Cekura support the same voice platforms?+
Both support Vapi, Retell, LiveKit, and Pipecat. Cekura additionally lists ElevenLabs and Bland integrations.
How much does Cekura cost?+
Cekura offers self-serve plans and enterprise pricing with a 7-day free trial; it does not publish full plan pricing. RubricHQ publishes its pricing: Starter $29/mo, Growth $499/mo, Enterprise custom.
Try RubricHQ against your own agent
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Sources · reviewed August 29, 2026
Competitor details are drawn from public sources and change over time. Found something out of date? Tell us.
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