
LLM observability, evaluation, prompt management, and agent simulation platform for AI engineering teams.
LangWatch has 3 plans: a free plan, paid plans from $34/month and custom pricing for larger teams. We have not recorded a price change.
LangWatch plans and prices
Developer
€0
- Events per month — 50k
- Data access duration — 14-day
- Users included — 2
- Scenarios included — 3
- Simulations included — 3
- Custom evaluations included — 3
- Support — Community support (GitHub & Discord)
Growth
monthly$34/mo
$34/core-seat/mo
- overage$6($6 / 100k after 200k included)
- 200k events included — 200k events included, then $6 / 100k
- 30-day retention included — 30-day retention included (extend at $4 / GB)
- Unlimited lite-users
- Unlimited simulations, evals, prompts
- Private Slack / Teams support
- Volume discounts above 20 users
Enterprise
Custom
- Hybrid, self-hosted, on-prem options
- Custom data retention
- Custom SSO / RBAC
- Audit logs
- Uptime & Support SLA
- ISO27001 reports
- InfoSec/legal reviews
- Custom Terms, DPA
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- Forward Deployed Engineer
- Marketplace billing (AWS, Google, Azure)
Price history
Last 1 recorded changes
| Date | Plan | Change | Old | New | Δ% |
|---|
| Jul 29, 2026 | Growth | Reclassified | — | $34 | — |
Other DevOps & Monitoring products
No confirmed alternatives yet.