Blackfire vs Langfuse Comparison
Blackfire
Starting at $33.25 /month
- Large Enterprises
- Medium Business
Blackfire is an application performance monitoring tool for development teams that provides lightweight profiling to identify performance bottlenecks in code. It is designed to minimize setup overhead so developers spend…
Langfuse
Starting at Free free
- Small Business
- Mid-Market
Langfuse is an open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. It provides detailed traces of LLM application executions — capturing every LLM call, tool use, retrieval step,…
Langfuse leads on user satisfaction with a 4.7-star rating across 185 reviews.
Blackfire vs Langfuse — at a glance
| Feature | Blackfire | Langfuse |
|---|---|---|
| Rating | 2.5 / 5 | 4.7 / 5 |
| Reviews | 2 | 185 |
| Starting price | $33.25 /month | Free free |
| Free trial | No | No |
| Free version | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Small Business, Mid-Market, Enterprise |
| Category | Application Performance Monitoring (APM) Tools | MLOps Platforms |
| Platforms | SaaS/Web/Cloud, Installed - Windows, Installed - Mac | Cloud, On-Premise, Linux |
| API | Available | Available |
| Support modes | Business Hours, Online | GitHub Issues, Discord Community, Email Support, Enterprise Support |
| Certifications | GDPR | — |
| Data residency | Global | — |
Key differences between Blackfire and Langfuse
- Pricing: Blackfire starts at $33.25 /month, while Langfuse starts at Free free.
- Target audience: Blackfire is built for Large Enterprises and Medium Business, while Langfuse targets Small Business and Mid-Market.
- User satisfaction: Langfuse scores higher with a 4.7-star average.
- Deployment: Blackfire supports SaaS/Web/Cloud, Installed - Windows, Installed - Mac; Langfuse supports Cloud, On-Premise, Linux.
Blackfire vs Langfuse — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Application Performance Monitoring (APM) Tools tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
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Biggest differences
Start here before you go deeper into features.
Large Enterprises, Medium Business, Small Business
Small Business, Mid-Market, Enterprise
Blackfire typically suits Large Enterprises and Medium Business. Langfuse tends to fit Small Business and Mid-Market better. The right choice depends on your team size, workflow, and whether a free trial matters.
Description | Blackfire is an application performance monitoring tool for development teams that provides lightweight profiling to identify performance bottlenecks in code. It is designed to minimize ... Read More about Blackfire | Langfuse is an open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics. It provides detailed traces of LLM application executions — capturing every LLM ... Read More about Langfuse |
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Free Trial Availability |
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SpotScoreWhat's this? ↗ | 7.6/10 | 9.4/10 |
User RatingsBased on verified Spotsaas reviews | ||
Get pricing help | Get pricing help |
Where each option fits best
See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.
Based on buyer reviews and verified product data collected by Spotsaas.
Key strengths
No key benefits available yet.
- Data Sovereignty for AI Traces: Self-hosted MIT deployment keeps all LLM traces, prompts, and evaluation data on company infrastructure — critical for regulated industries.
- Free at Scale: 50k free cloud traces plus unlimited self-hosted cover most production AI applications without per-trace cost anxiety.
- Product-Level AI Analytics: Session grouping lets you analyze how users interact with AI features across multi-turn conversations — beyond per-call debugging.
Best fit
No best-fit guidance available yet.
- European and regulated-industry teams self-hosting LLM observability to maintain data residency compliance
- Early-stage AI startups instrumenting production LLM applications at zero cost with the cloud free tier
- Teams running systematic LLM-as-judge evaluations to catch prompt quality regressions before deployment
Software Demo
Demo |
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How do Blackfire and Langfuse Compare on Features?
Total Features | 4 Features | 8 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Blackfire and Langfuse on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Other Details
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
GDPR | ✓ Yes | — |
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Data Residency | 🌐 Global | — |
Blackfire User Reviews & Rating Comparison
User Ratings | 4.7 (based on 185 reviews) | |
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Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyer sentiment is cautious across 2 reviews, with several recurring concerns in feedback. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is very strong across 185 reviews, with consistently positive feedback. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product |
| Negative Reviews | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Screenshots |  3 Screenshots | No screenshots available. |
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Videos |  3 Videos | No videos available. |
Top Alternatives to Blackfire and Langfuse in 2026
Alternatives | No Alternative products available. |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Blackfire or Langfuse?
- Langfuse edges out the other on user ratings (4.7 vs 2.5). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Blackfire and Langfuse offer a free trial?
- Neither Blackfire nor Langfuse currently lists a free trial.
- What is the starting price of Blackfire vs Langfuse?
- Blackfire starts at $33.25 /month. Langfuse starts at Free free.
- What are the top alternatives to Blackfire?
- Top alternatives to Blackfire include ManageEngine Applications Manager, Scout APM, Datadog APM, New Relic APM, AppDynamics.