Is Axiom or Langfuse better?

Neither clearly leads. Axiom starts at Free and Langfuse at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Axiom or Langfuse?

Axiom starts at Free and Langfuse at Free.

Does Axiom or Langfuse run on more platforms?

Axiom runs on Web (Chrome, Edge, Firefox, Safari), API. Langfuse runs on Web.

Can I use Axiom for free?

Both have a free tier, so you can try either at no cost before committing.

What is Axiom best used for?

Axiom is most often used for log monitoring, application performance, security analytics, troubleshooting. Of those, log monitoring and application performance are not what Langfuse is typically brought in for.

What can Axiom do that Langfuse cannot?

Axiom covers Serverless architecture, Log aggregation, Real-time processing, AplLog query language.

Logging · head to head

Axiom vs Langfuse

Axiom

Logging

Serverless Log Analytics and Observability

From: Free
Rated: -

Full review Website

Langfuse

Software Development

Simple pricing for projects of all sizes

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Axiom no self-hosted or air-gapped deployment option for compliance-sensitive workloads; Langfuse free Hobby plan limited to 2 users and 30-day data retention

Where they differ

Only the attributes on which Axiom and Langfuse actually diverge.

Attributes where Axiom and Langfuse differ
Attribute	Axiom	Langfuse
Pricing model	Unknown	freemium
Platforms	Web (Chrome, Edge, Firefox, Safari), API	Web
Category	Logging	Software Development
Founded	2017	Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Axiom

Serverless architecture
Log aggregation
Real-time processing
AplLog query language
Cost-effective indexing
API
Webhooks
REST

Only in Langfuse

Nothing recorded that Axiom does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Axiom

Log monitoringnot Langfuse
Application performancenot Langfuse
Security analyticsnot Langfuse
Troubleshootingnot Langfuse

Langfuse

No use cases recorded yet. See the Langfuse review.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Axiom

No self-hosted or air-gapped deployment option for compliance-sensitive workloads
Vendor lock-in due to APL (Axiom Processing Language) not transferring to other platforms
Proprietary storage format limits data portability and external analytics access
Complex pricing model with multiple cost dimensions (ingestion, compute, storage) makes budgeting difficult at scale
Limited ecosystem integration; does not integrate deeply with existing observability stacks like Grafana for metrics and Jaeger for traces

Langfuse

Free Hobby plan limited to 2 users and 30-day data retention
Overage pricing applies beyond included units; graduated rates from $8.00 per 100k units down to $6.00 per 100k units at 50M+ volume

Pricing, plan by plan

Axiom

Free

PersonalFree
- 500GB/month data loading
- 10 GB-hours query compute
- 25GB storage
Axiom Cloud$25/month
- 1TB/month data loading included
- 100 GB-hours compute included
- 100GB storage included

Langfuse

Free

HobbyFree
- 50k units/month
- 30-day data retention
- 2 users maximum
Core$29/month
- 100k units/month
- 90-day data retention
- Unlimited users
Pro$199/month
- 100k units/month
- 3-year data retention
- SOC2 & ISO27001 compliance
Enterprise$2499/month
- Custom rate limits
- Dedicated support engineer
- SCIM API & audit logs

Which should you pick?

Choose Axiom if

You need serverless architecture.
You want to start without paying.
You work on Web (Chrome, Edge, Firefox, Safari), API.
You also want log aggregation.

Axiom review

Choose Langfuse if

You want to start without paying.

Langfuse review

Questions people ask

Is Axiom or Langfuse better?: Neither clearly leads. Axiom starts at Free and Langfuse at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Axiom or Langfuse?: Axiom starts at Free and Langfuse at Free.
Does Axiom or Langfuse run on more platforms?: Axiom runs on Web (Chrome, Edge, Firefox, Safari), API. Langfuse runs on Web.
Can I use Axiom for free?: Both have a free tier, so you can try either at no cost before committing.
What is Axiom best used for?: Axiom is most often used for log monitoring, application performance, security analytics, troubleshooting. Of those, log monitoring and application performance are not what Langfuse is typically brought in for.
What can Axiom do that Langfuse cannot?: Axiom covers Serverless architecture, Log aggregation, Real-time processing, AplLog query language.

Answered from the vendors’ own pages

Axiom: Does Axiom offer a free tier with no time limit?

Yes, Axiom's Personal plan is permanently free and includes 500GB of data ingest per month, 10 GB-hours of query compute, and 25GB storage with 30-day retention. No credit card is required.

Source

Langfuse: What does Langfuse cost?

Langfuse starts at $29/month for the Core plan (100k units/month). Pro costs $199/month with 3-year data retention. Enterprise costs $2499/month for custom rate limits and dedicated support.

Source

Axiom: Can I self-host Axiom or use my own cloud infrastructure?

No, Axiom is cloud-only. There is no self-hosted option, air-gapped deployment, or Bring Your Own Cloud available. The platform is a fully managed service.

Source

Langfuse: Does Langfuse have a free plan?

Yes, the Hobby plan is free with 50k units/month, 30-day data retention, and support for up to 2 users.

Source

Axiom: What is Axiom's query language and does it work with SQL?

Axiom uses APL (Axiom Processing Language), based on Kusto Query Language. It is not standard SQL, and APL skills and queries do not transfer to other platforms, creating vendor lock-in.

Source

Langfuse: What happens if I exceed my unit limits on Langfuse?

Overage pricing applies with graduated rates: $8.00 per 100k units for 100k-1M units, $7.00 per 100k units for 1M-10M units, $6.50 per 100k units for 10M-50M units, and $6.00 per 100k units for 50M+ units.

Source

Axiom: What integrations does Axiom support for alerting?

Axiom supports pre-built integrations with Slack and PagerDuty, plus custom webhooks. Alerts can be configured via threshold-based, anomaly detection, or match-based monitors.

Source

Langfuse: Are there discounts available on Langfuse?

Early-stage startups receive 50% off the first year. Research and student accounts qualify for up to 100% off. Non-profits receive $199 monthly credits.

Source

Axiom: How does Axiom's pricing scale with data volume?

Axiom uses consumption-based pricing with automatic volume discounts. Costs depend on data loading volume, query compute usage (measured in GB-hours), and storage. The Team plan starts at $25/month with included allowances, then overage charges apply per unit with volume-based discounts.

Source

Axiom: What platforms can access Axiom's web interface?

Axiom's web app supports Chrome, Edge, Firefox, and Safari. Mobile access is supported on iOS and Android, but some features like moving dashboard elements are unavailable on mobile.

Source

Axiom vs Langfuse

Axiom

Langfuse

The short version

Where they differ

What each one covers

Only in Axiom

Only in Langfuse

What people use each for

Axiom

Langfuse

Where each one falls short

Axiom

Langfuse

Pricing, plan by plan

Axiom

Langfuse

Which should you pick?

Choose Axiom if

Choose Langfuse if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Axiom

More on Langfuse

Keep looking

Other head to heads