vendor · observability
Langfuse vs Cekura (formerly Vocera AI)
49 fields both were evaluated on, 27 of them different — including where one discloses something the other does not. Every value links to the document it came from. 22 further fields are disclosed by neither and are listed at the end rather than tabled.
Assurance
| Field | Langfuse | Cekura (formerly Vocera AI) |
|---|---|---|
| Audit trail· | “Hierarchical traces capture every LLM call, tool invocation, and retrieval step.”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 18, 2026 |
| Permission scopes· | Data is scoped per-project with project-scoped API keys, and requests are authorized via role-based access control before queries run. “All product data is scoped to a project. Every record is associated with a projectId , API keys are project-scoped, and authenticated requests are authorized through RBAC before queries are made”langfuse.com · checked Sep 2, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Compliance certifications· | SOC 2 Type II, ISO 27001, EU & US data regions, a HIPAA-ready region, GDPR; government hardening described as coming soon “SOC 2 Type II & ISO 27001 EU & US Data Regions HIPAA-ready region Hardening for Gov (soon) GDPR”langfuse.com · checked Sep 12, 2026 | States its security and compliance infrastructure includes HIPAA, SOC 2, and GDPR "as defaults." “The security and compliance infrastructure voice AI demands: HIPAA, SOC 2, and GDPR, not as checkboxes but as defaults.”www.vocera.ai · checked Sep 9, 2026 |
| Regulatory alignment· | Langfuse states it is GDPR compliant with data retention, masking and deletion capabilities “Langfuse is GDPR compliant, and offers data retention, data masking and data deletion capabilities to manage the processing of personal data”langfuse.com · checked Aug 26, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| SLA terms· | no public information www.vocera.ai · checked Aug 6, 2026 | |
| Evaluation coverage· | Supports LLM-as-a-judge, heuristic function, and human-review evaluators run on production data or experiments “LLM-as-a-judge, heuristic functions, or human review. Run evaluators on production data or during experiments.”langfuse.com · checked Sep 22, 2026 | Vendor runs synthetic conversation suites against a customer's agent before go-live. This is the vendor's own testing product, not an independent assessment of the vendor. “Run thousands of synthetic conversations before go-live.”www.vocera.ai · checked Aug 18, 2026 |
| Self-reported performance· | Vendor claims Langfuse v4 delivers up to 165x faster performance (self-reported). “Langfuse v4 is here: real-time, up to 165× faster”langfuse.com · checked Aug 10, 2026 | no public information www.vocera.ai · checked Aug 18, 2026 |
| Service type· | Automated QA and reliability testing for voice and chat AI agents; the vendor now describes itself as "the reliability layer for voice agents" under the name Cekura. “The reliability layer for voice agents.”www.vocera.ai · checked Aug 18, 2026 | |
| Client types· | no public information www.vocera.ai · checked Aug 18, 2026 |
Safety
| Field | Langfuse | Cekura (formerly Vocera AI) |
|---|---|---|
| Red teaming· | no public information langfuse.com · checked Aug 11, 2026 | Offers adversarial red-teaming that probes agents for jailbreaks, leaks, and off-script behavior. “Adversarial red-teaming Probe for jailbreaks, leaks, and off-script behavior.”www.vocera.ai · checked Sep 9, 2026 |
| Incident reporting· | Vulnerability disclosure runs through Bugcrowd, plus a whistleblowing channel. “Reporting: Clear channels for responsible disclosure through Bugcrowd and Whistleblowing”langfuse.com · checked Sep 2, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Third-party evaluations· | Undergoes annual third-party penetration testing in addition to its SOC 2 Type II and ISO 27001 audits. “is covered by SOC 2 Type II and ISO 27001 audits, and undergoes annual third-party penetration tests”langfuse.com · checked Sep 2, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Data handling· | Langfuse states it is GDPR compliant with data retention, masking and deletion capabilities “Langfuse is GDPR compliant, and offers data retention, data masking and data deletion capabilities to manage the processing of personal data”langfuse.com · checked Aug 26, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
Practicality
| Field | Langfuse | Cekura (formerly Vocera AI) |
|---|---|---|
| Pricing model· | Usage-based free tier (50k observations/month) with no credit card required; paid tiers not detailed on this page “Free tier: 50k observations/month . No credit card required.”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Price point· | Free tier: 50k observations/month, no credit card required “Free tier: 50k observations/month . No credit card required.”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Availability· | Generally available: a fully managed multi-tenant cloud service, actively used at scale. “Langfuse Cloud is a fully managed, multi-tenant SaaS deployment”langfuse.com · checked Sep 2, 2026 | Page offers both a demo booking and a free-trial signup; no release stage or waitlist is stated on the page checked. “Book a Demo Start Free Trial”www.vocera.ai · checked Sep 16, 2026 |
| Deployment options· | Self-hosts at scale via Docker Compose, Kubernetes (Helm), or Terraform on AWS/GCP/Azure “Self-host at scale Docker Compose Kubernetes (Helm) AWS (Terraform) GCP (Terraform) Azure (Terraform)”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Integrations· | 100+ integrations across languages, agent frameworks, and model providers “Additionally, 100+ integrations make getting started even easier.”langfuse.com · checked Aug 11, 2026 | States it integrates with customers' existing tools and platforms. “Cekura integrates with your existing tools and platforms, letting teams scale AI without disrupting workflows.”www.vocera.ai · checked Sep 9, 2026 |
| Supported regions· | EU and US data regions, with a HIPAA-ready region “EU & US Data Regions HIPAA-ready region”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
Ecosystem
| Field | Langfuse | Cekura (formerly Vocera AI) |
|---|---|---|
| Protocols supported· | Ships a Platform MCP Server for IDE agents and is OpenTelemetry-native “Platform MCP Server Structured access for IDE agents to manage prompts, query traces, and use Langfuse data.”langfuse.com · checked Aug 11, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| API access· | no public information www.vocera.ai · checked Aug 6, 2026 | |
| Open source· | no public information www.vocera.ai · checked Aug 6, 2026 |
Impact
| Field | Langfuse | Cekura (formerly Vocera AI) |
|---|---|---|
| User base· | Used by 21 of Fortune 50; 90B+ observations/month; 100,000+ engineers building on Langfuse “Used by 21 of Fortune 50 90B+ observations/month 100,000+ engineers building on Langfuse”langfuse.com · checked Sep 3, 2026 | no public information www.vocera.ai · checked Aug 18, 2026 |
| Deployment scale· | Processes over 90 billion observations per month, up from a previously reported 10+ billion. “90B+ observations/month”langfuse.com · checked Sep 3, 2026 | no public information www.vocera.ai · checked Aug 6, 2026 |
| Target sectors· | no public information langfuse.com · checked Aug 11, 2026 | Healthcare, via a named customer deploying a patient-onboarding agent; no other sector is named on the page checked “Twin Health “ Cekura lets our AI agent deliver precision onboarding at scale. We test every release against thousands of synthetic patients before it ever reaches a real one. ” ”www.vocera.ai · checked Aug 18, 2026 |
| High-risk domains· | no public information langfuse.com · checked Aug 11, 2026 | Healthcare - the vendor publishes a customer testimonial (Twin Health) describing testing against thousands of synthetic patients “Twin Health “ Cekura lets our AI agent deliver precision onboarding at scale. We test every release against thousands of synthetic patients before it ever reaches a real one. ” ”www.vocera.ai · checked Aug 18, 2026 |
| Market recognition· | Vendor states its platform is used by 21 of the Fortune 50 companies. “Used by 21 of Fortune 50”langfuse.com · checked Aug 10, 2026 | Named customer case studies/testimonials from Confido Health, Kastle, and Twin Health “Confido Health “ We set up key metrics on Cekura and could easily compare between our old and new stack. Zero regression on key workflows, every node and integration preserved post-migration. ” – Vichar Shroff , Co-founder & CPO Kastle “ Cekura has become a critical part of our development pipeline. Now we don't ship any agents to production without first aggressively testing them on Cekura. ” – Rishi Chowdhary , CEO, Kastle Twin Health “ Cekura lets our AI agent deliver precision onboarding at scale. We test every release against thousands of synthetic patients before it ever reaches a real one. ” ”www.vocera.ai · checked Aug 18, 2026 |
Disclosed by neither
Both Langfuse and Cekura (formerly Vocera AI) publish nothing on these 22 fields. That is a finding about the category rather than a difference between them, so it is recorded here instead of as 22 identical table rows. Each is shown with its source check on the individual profiles.
- Documented incidents
- Support model
- Marketplace presence
- Safety evaluations
- Safety policy
- Usage restrictions
- Model or system card
- Insurance available
- Own liability cover
- Insurance carriers
- Coverage limits
- Indemnification
- Liability cap
- Tamper-evident log
- Explainability
- Runtime governance
- Outcome-based pricing
- Settlement mechanism
- Asset custody
- Dispute process
- Regulatory status
- Underwriting backing
Questions
- How do Langfuse and Cekura (formerly Vocera AI) compare on user base?
- Langfuse: Used by 21 of Fortune 50; 90B+ observations/month; 100,000+ engineers building on Langfuse. Cekura (formerly Vocera AI): no public information disclosed.
- How do Langfuse and Cekura (formerly Vocera AI) compare on deployment scale?
- Langfuse: Processes over 90 billion observations per month, up from a previously reported 10+ billion.. Cekura (formerly Vocera AI): no public information disclosed.
- How do Langfuse and Cekura (formerly Vocera AI) compare on target sectors?
- Langfuse: no public information disclosed. Cekura (formerly Vocera AI): Healthcare, via a named customer deploying a patient-onboarding agent; no other sector is named on the page checked.
- How do Langfuse and Cekura (formerly Vocera AI) compare on high-risk domains?
- Langfuse: no public information disclosed. Cekura (formerly Vocera AI): Healthcare - the vendor publishes a customer testimonial (Twin Health) describing testing against thousands of synthetic patients.
- How do Langfuse and Cekura (formerly Vocera AI) compare on market recognition?
- Langfuse: Vendor states its platform is used by 21 of the Fortune 50 companies.. Cekura (formerly Vocera AI): Named customer case studies/testimonials from Confido Health, Kastle, and Twin Health.
- How do Langfuse and Cekura (formerly Vocera AI) compare on pricing model?
- Langfuse: Usage-based free tier (50k observations/month) with no credit card required; paid tiers not detailed on this page. Cekura (formerly Vocera AI): no public information disclosed.