Helicone vs OpenLLMetry: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Helicone and OpenLLMetry side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Helicone
Build reliable AI apps with Helicone: AI Gateway & LLM Observability for debugging, routing, and analysis.
Best for you if:
- • You want LLM observability
OpenLLMetry
Open-source observability for LLMs using OpenTelemetry.
Best for you if:
- • You want leverages open standards (OpenTelemetry)
| At a Glance | Helicone | OpenLLMetry |
|---|---|---|
Starts at | Free plan, paid from $100/mo, billed monthly Pro plan | Free plan |
Category | API Tools Debugging | Monitoring DevOps |
Rating | n/a | n/a |
Free plan | Yes | Yes |
Watch out for | Potential overage fees if exceeding Pro tier limits | No clear pricing for exceeding 50K spans/month on free tier. |
Choose Helicone or OpenLLMetry?
Choose Helicone if
- You want LLM observability
- You want request logging
- You work in API tools, not monitoring
Choose OpenLLMetry if
- You want leverages open standards (OpenTelemetry)
- You want easy integration with minimal code changes
- You work in monitoring, not API tools
In-Depth Analysis
Helicone
Build reliable AI apps with Helicone: AI Gateway & LLM Observability for debugging, routing, and analysis.
Helicone's pricing is quite fair, offering a generous Free tier for initial exploration and a well-priced Pro tier at $100/month for significant production use.
Watch out
Potential overage fees if exceeding Pro tier limits
Strengths
- Pro: LLM observability
- Pro: Request logging
- Pro: Cost tracking
- Pro: Good for AI apps
- Pro: Fair pricing
Weaknesses
- Con: Newer platform
- Con: Limited features
- Con: Still maturing
- Con: Integration effort
- Con: Documentation improving
Key features
OpenLLMetry
Open-source observability for LLMs using OpenTelemetry.
OpenLLMetry offers a generous "Free Forever" tier with up to 50K spans/month, which is excellent for small projects and individual developers.
Watch out
No clear pricing for exceeding 50K spans/month on free tier.
Strengths
- Pro: Leverages open standards (OpenTelemetry)
- Pro: Easy integration with minimal code changes
- Pro: Supports both Python and TypeScript/Node.js
- Pro: Provides visibility into LLM application workflows
- Pro: Vendor-neutral for data export
Weaknesses
- Con: Requires an OpenTelemetry backend for full visualization
- Con: Limited information on advanced features or customization options from the provided content
Key features
Plans and prices: Helicone vs OpenLLMetry
| Tool | Plans and prices | Source |
|---|---|---|
| Helicone |
| helicone.ai/pricing read Oct 15, 2026 |
| OpenLLMetry |
| traceloop.com/pricing read Oct 2, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Helicone pricing and OpenLLMetry pricing.
Key Takeaways
Helicone
- Choose if you want build reliable AI apps with Helicone: AI Gateway & LLM Observability for debugging, routing, and analysis
OpenLLMetry
- Choose if you want open-source observability for LLMs using OpenTelemetry
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Helicone starts at $100/mo, billed monthly; OpenLLMetry has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Helicone and OpenLLMetry compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Helicone starts at $100/mo, billed monthly; OpenLLMetry has no public paid plan price on file. Both have a free plan.
What are Helicone and OpenLLMetry used for?
Helicone: Build reliable AI apps with Helicone: AI Gateway & LLM Observability for debugging, routing, and analysis. OpenLLMetry: Open-source observability for LLMs using OpenTelemetry.
What does Helicone cost vs OpenLLMetry?
Helicone's cheapest paid plan is Pro at $100/mo, billed monthly; it also has a free plan. OpenLLMetry has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 15, 2026.
What's the main difference between Helicone and OpenLLMetry?
Helicone's main strength: LLM observability. OpenLLMetry's main strength: leverages open standards (OpenTelemetry).