New Relic vs Tessary
New Relic and Tessary are both uptime & monitoring tools. New Relic is aimed at enterprise and developers, while Tessary is aimed at developers and small businesses. Both have a free plan.
Full-stack observability with a free 100 GB tier
Open-source monitoring that finds why production AI agents fail
| Pricing | Freemium · $10 | Open source |
| Starting price | $10/mo | Not published |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Enterprise, Developers | Developers, Small businesses, Enterprise |
| Platforms | web | web, linux |
| Country | US · 2008 | — |
| Rating | — | — |
Choose New Relic if
Engineering teams wanting full observability with flexible pricing.
- Generous free tier
- Unified platform
- Powerful query language
Look elsewhere if: Teams needing only error tracking (Sentry).
Choose Tessary if
Engineering teams running AI agents in production with OpenTelemetry traces who want every trace checked and failures explained.
- Apache 2.0 open source with free self-hosting
- Checks every trace instead of a sampled subset
- RCA links failures to specific commits when a repo is connected
Look elsewhere if: Teams that want a mature, fully supported observability suite or an eval-first workflow (Datadog, Braintrust).
New Relic vs Tessary pricing
New Relic
- Free$0100 GB data ingest/mo, 1 full platform user, unlimited basic
- Standard$10/first user/mo$99 per additional full user (max 5); data $0.40/GB over 100 GB
- Pro$418.80/user/moMonthly pay as you go; $349/user on annual commitment
- EnterpriseCustomContact sales; FedRAMP/HIPAA via Data Plus
Tessary
- Open Source$0Self-host with Docker Compose; all core features
- Cloud Free$010k traces/mo, 1 GB, 30-day retention, $10 one-time RCA credit
- PaidCustomCustom classifiers, managed dedicated instance, Slack support
New Relic · Key features
- APM and distributed tracing
- Infrastructure and Kubernetes monitoring
- Logs in context
- Browser, mobile and synthetics
- AI monitoring for LLM apps
- NRQL queries and dashboards
Cons
- Full user seats are costly
- UI complexity
- Data costs at scale
Tessary · Key features
- Classifiers run on every production trace with no sampling
- Built-in checks for drift, tool errors, secret leaks and malformed output
- LLM triage groups real deviations into trackable cases
- Root-cause analysis over failing traces and your GitHub repository
- OTLP ingestion over HTTP and gRPC with OpenTelemetry gen_ai conventions
- PII redaction before traces are stored
Cons
- Very new project with a short track record
- Paid plan prices are not published
- Frustration classifier requires your own OpenRouter or TypeSafe key
New Relic vs Tessary: FAQ
Do New Relic and Tessary have a free plan?
Yes, both New Relic and Tessary have a free plan; paid plans add more usage and features.
Which is better for small businesses, New Relic or Tessary?
Tessary lists small businesses as a core audience, while New Relic is aimed more at enterprise and developers.