
Helicone AI
LangSmith
LangChain
PromptLayer
Portkey
Braintrust.dev
Openlayer
Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

HackerRank
CodeSignal
iMocha
HackerEarth
TestGorilla
DevSkiller
mettl
Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

Which is more popular?
Based on our record, Langfuse seems to be a lot more popular than Codility. While we know about 32 links to Langfuse, we've tracked only 2 mentions of Codility.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | langfuse.com | codility.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data....
The Codility platform includes: CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage. CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards....
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Langfuse in two minutes
An Introduction to Codility: The Tech Hiring Platform for Engineering Teams
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Langfuse and Codility. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Ten free AI prompt tools in 2026 across four categories: prompt generators (SurePrompts, Anthropic Console, OpenAI Playground), libraries (AIPRM, PromptHero, FlowGPT, Awesome ChatGPT Prompts), open-source workflow...
Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
Recommendations tracked on public social media and blogs since March 2021.


Langfuse is the other serious option in this category if you also want observability, evals and traces bundled with prompt management. Different scope, more setup, worth comparing honestly. - Source: dev.to / 16 days ago
Langfuse with Microsoft.Extensions.AI has an appealing story: update prompts without redeploying. A prompt fetches its config blob—model, tokens, temperature—which the code passes straight to the LLM. - Source: dev.to / 19 days ago
Langfuse is not a replacement for OpenTelemetry; it is a specialization layer built on top of it. Langfuse was engineered specifically for the unique telemetry needs of LLM applications. It acts as the semantic layer that OTel lacks. - Source: dev.to / 24 days ago
- Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as... - Source: dev.to / over 2 years ago
Codility : Verify and improve coding skills. - Source: dev.to / over 5 years ago
When comparing Langfuse and Codility, you can also consider the following products.

Open-source LLM Observability for Developers
Compare Helicone AI to Langfuse or Codility:

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Compare HackerRank to Langfuse or Codility:

Build and deploy LLM applications with confidence
Compare LangSmith to Langfuse or Codility:

CodeSignal is the leading assessment platform for technical hiring.
Compare CodeSignal to Langfuse or Codility:

Framework for building applications with LLMs through composability
Compare LangChain to Langfuse or Codility:
