Machine Learning · pricing
Langwatch pricing
Langwatch publishes 3 tiers. Below is each one, what it adds over the tier beneath it, and where the ladder stops being worth climbing for most people.
- Entry price
- Free, then €29/month
- Model
- Tiered subscription with usage-based overage charges
- Tiers
- 3
- Free tier
- Yes
Langwatch plans, side by side
Every published tier in ascending order of price, with the number of features each one lists. An absence here means the record does not itemise it, not that the tier lacks it.
| Plan | Price | Features listed | Step up from the tier below |
|---|---|---|---|
| Developer | Free | 5 | Entry tier |
| Growth | €29/month | 5 | +$29/month, 5 more features |
| Enterprise | On request | 5 | Priced on request |
What each tier adds
The set difference between each tier's feature list and the one beneath it. Where a tier lists nothing new, the vendor has either stopped repeating the inherited list or the tier raises limits rather than adding capability, the record does not distinguish the two, so this page does not either.
Developer
FreeThe entry tier. It covers 50k events per month, 14-day data access, 2 users, community support, no credit card required.
Growth
€29/monthOver Developer, this tier adds:
- 200k events per month included
- 5 EUR per 100k additional events
- 30-day data retention
- Unlimited lite-users
- Private support
Enterprise
On requestOver Growth, this tier adds:
- Custom event limits
- Hybrid, self-hosted or on-premises deployment
- Custom SSO and RBAC
- Audit logs
- Dedicated support
Where Langwatch stops being free
Developer, Free
- 50k events per month
- 14-day data access
- 2 users
- Community support
- No credit card required
Growth, €29/month
The first thing you pay for:
- 200k events per month included
- 5 EUR per 100k additional events
- 30-day data retention
- Unlimited lite-users
- Private support
What the product covers
The full Langwatch feature record, grouped as the catalogue groups it. This is the product as a whole; the record does not map every feature onto a specific tier.
Core
- Agent simulation testing
- LLM evaluation
- Langy AI Engineer
Observability
- OpenTelemetry tracing
Security
- Governance controls
Deployment
- Multiple deployment options
Integrations
- Framework support
People bring Langwatch in for continuous testing of ai agents before production deployment, automated test creation from product requirements, llm response quality evaluation and scoring, production agent monitoring and cost tracking, governance and access control for ai systems. If that is not the job you are buying for, the alternatives to Langwatch are worth a look before you commit to a tier.
How that compares in Machine Learning
Too few machine learning tools in this directory publish a starting price to quote a meaningful median, so the table below is a like-for-like list rather than a ranking.
| Tool | Entry price | Model | Rated | Head to head |
|---|---|---|---|---|
| Langwatch (this page) | Free, then €29/month | Tiered subscription with usage-based overage charges | - | |
| ClearML | Free | Open-source self-hosted, with paid hosted and enterprise tiers | - | vs Langwatch |
| Haystack | Free | Open-source with optional paid enterprise support | - | vs Langwatch |
| Semantic Kernel | Free | Open source, no pricing | - | vs Langwatch |
| Fal AI | $1.89/hour | usage-based | - | vs Langwatch |
| H2O.ai | Free | freemium | - | vs Langwatch |
| Dask | Free | open-source | - | vs Langwatch |
Ratings are aggregated from third-party sources and imported with each catalogue entry, they are not reviews hosted on Softwr. How each figure is used is set out on the Langwatch badges page.
Before you pay for Langwatch
Three things this page cannot tell you, and all three change the bill. The record carries a price and a billing period but not the unit - per-seat and flat-rate pricing are indistinguishable in this data, so a five-person team may be looking at five times the figure above. It carries no annual rate, so any discount for paying yearly is not something this page can quote. And it carries no trial length.
What it can tell you is the shape of the ladder: 3 tiers between Free and On request, with the jump itemised above. Because there is a free tier, the cheapest way to answer the rest is to use it before paying anything.
Langwatch runs on web, docker, kubernetes, and is published by Langwatch B.V.. The full record is on the Langwatch review, and the rest of the category is under best machine learning tools.
Langwatch pricing questions
- How much does Langwatch cost?
- Langwatch publishes 3 tiers, from Free for Developer up to On request for Enterprise. The entry tier costs nothing.
- Does Langwatch have a free plan?
- Yes. The Developer tier costs nothing and covers 50k events per month, 14-day data access, 2 users. Paying starts at €29/month for Growth.
- What is the difference between Developer and Growth on Langwatch?
- Growth costs €29/month against Free, and adds 200k events per month included, 5 eur per 100k additional events, 30-day data retention, unlimited lite-users.
- Is the Enterprise plan on Langwatch worth it?
- That depends entirely on whether you need what it adds, which on the published record is custom event limits, hybrid, self-hosted or on-premises deployment, custom sso and rbac, audit logs. It costs On request against €29/month for Growth. Softwr has not used either tier, so this page can tell you what changes, not whether it is worth the difference to you.
- Which machine learning tools can I use without paying?
- 7 of the 8 machine learning tools listed alongside Langwatch have a free tier: ClearML, Haystack, Semantic Kernel, H2O.ai, Dask.
- What am I actually paying for with Langwatch?
- The record lists 7 features across 5 areas: core, observability, security, deployment, integrations. In practice it is brought in for continuous testing of ai agents before production deployment, automated test creation from product requirements, llm response quality evaluation and scoring.
- Does Langwatch charge per user?
- The record carries a price and a billing period for each of its 3 tiers, but not the unit that price is charged in. Per-seat and flat-rate billing look identical in this data, so check the vendor's page before budgeting for a team.
- Are these Langwatch prices current?
- They are what the catalogue entry holds, refreshed when the entry is. Vendors change pricing without notice and nobody at Softwr re-verifies each tier by hand, so treat this as a structured summary and the vendor's own pricing page as the authority.
- What should I compare Langwatch against before paying?
- The closest machine learning tools in this directory are ClearML, Haystack, Semantic Kernel, Fal AI. Each has a side-by-side comparison with Langwatch covering price, platforms and features.