Best Langfuse alternatives
Open-source tracing, evaluation and observability platform for LLM applications and agents.
Last updated November 13, 2026
Top Langfuse alternatives on usedby: SigNoz, Speakeasy, and LangSmith. Langfuse has 17 public customers on usedby. 28 other tools of the same or a competing category, from other vendors, have public customers.Latest check Nov 13, 2026: 606 of 612 public lines checked. Every public proof counts as a customer, from case studies to job posts. The proof level stays visible: confirmed (a case study, a press release), observed (the vendor’s customer page), signal (a job post, the weakest proof).
Ranked by public customers
Tools of the same or a competing category, from another vendor. Open a row for its customers, sources and facts; shared customers never set the order.
1
SigNoz52customers52 customers: 10 confirmed, 42 observed.
Customers include ELSA, Eltropy, and HTTPScout.
1 company is listed on both SigNoz and Langfuse.
Latest capture across its sources: Nov 13, 2026.
2
Speakeasy47customers47 customers: 19 confirmed, 27 observed.
Customers include Fivetran, Polar, and Airbyte.
1 company is listed on both Speakeasy and Langfuse.
Latest capture across its sources: Nov 12, 2026.
Right before adopting Speakeasy, SDK maintenance was getting out of control. We had one developer spending at least 5 hours/week generating new SDKs for every API release. And now that mental load is just gone.
Clément Salaün, Formance Co-Founder & CEO, Formance. Source 3
LangSmithObservability platform to trace, monitor and debug AI agents and LLM apps47customers4
LangChainFramework for building LLM applications47customers5
BraintrustObservability and evaluation platform to trace, score and improve AI agents in production.41customers41 customers: 16 confirmed, 24 observed, 1 job-post signal.
Customers include Cloudflare, Coursera, and Dropbox.
Largest industry on usedby: DevTools & Infrastructure, 12 customers.
1 company is listed on both Braintrust and Langfuse.
Pricing: free plan and paid tiers. Source Free trial or free plan available. Source
Source: braintrust.dev, latest capture Nov 10, 2026.
We added a test so that every single AI prompt we check into the codebase needs to have a Braintrust playground ID. If it doesn't have a playground ID attached to it, the test fails.
Fred Zhao, Software Engineer, AI Team, Pylon. Source 6
DaytonaSecure sandboxes to run AI-generated code and AI agents32customers32 customers: 15 confirmed, 17 observed.
Customers include Handshake, AfterQuery, and Asteroid.
No company is listed on both Daytona and Langfuse yet.
Pricing: usage-based. Source Free trial or free plan available. Source
Source: daytona.io, latest capture Nov 12, 2026.
Daytona has hugely simplified and sped up our agentic training and evaluation stack with their sandbox infrastructure. It sits quietly in the background, ensuring every environment and every agent runs exactly as ARES requires.
Josh Greaves, ML Tech Lead at Martian, Martian. Source 7
Arize AIUnified LLM observability and agent evaluation platform32customers32 customers: 9 confirmed, 23 observed.
Customers include Booking.com, Tripadvisor, and Wayfair.
No company is listed on both Arize AI and Langfuse yet.
Free trial or free plan available. Source
Source: arize.com, latest capture Nov 10, 2026.
We adopted an evaluation-driven development approach with Arize AX and continuously improved performance by building evaluation datasets. Arize has been essential for building AI for 30 million subscribers.
MinKyu Ha, Team Lead AI Contact Center (AICC), LG U+. Source 8
E2BAgent cloud that gives every AI agent session its own isolated microVM sandbox to run code.30customers30 customers: 17 confirmed, 12 observed.
Customers include ClickUp, Vanta, and Groq.
Largest industry on usedby: Artificial Intelligence, 17 customers.
1 company is listed on both E2B and Langfuse.
Free trial or free plan available. Source
Source: e2b.dev, latest capture Nov 11, 2026.
Being able to hand off compute sandboxes to E2B has been fantastic as we've scaled from going from tens of sandboxes and benchmarks a day to hundreds of benchmarks and many thousands of sandboxes.
George Cameron, Co-founder & CPO, Artificial Analysis. Source 9
Temporal30customers30 customers: 0 confirmed, 29 observed.
Customers include Motion, Nvidia, and OpenAI.
2 companies are listed on both Temporal and Langfuse.
Latest capture across its sources: Nov 13, 2026.
10
TrueFoundryEnterprise AI gateway, MCP gateway and deployment platform to route, govern and run models and agents.29customers29 customers: 13 confirmed, 16 observed.
Customers include Nvidia, NetApp, and Adopt AI.
Largest industry on usedby: Artificial Intelligence, 6 customers.
No company is listed on both TrueFoundry and Langfuse yet.
Pricing: free plan and paid tiers. Source Free trial or free plan available. Source
Source: truefoundry.com, latest capture Nov 12, 2026.
Once all our AI traffic filters through the TrueFoundry gateway, I'm confident we'll have full control of what's happening across the company — we'll be able to both see it and control it.
Mike Murphy, SVP of Technology, Strategy & Architecture, EchoStar. Source
More LLM observability & evals tools on usedby
Same or competing category, from another vendor, after the ranking above: fewer public customers.
OpenRouter28 customers
Browserbase25 customers
Manufact24 customers
Portkey22 customers
AgentMail21 customers
Kernel18 customers
CrewAI18 customers
Hatchet18 customers
Comet Opik17 customers
Mindset AI17 customers
Our most prominent use case was to give access to logs to the customer support team. Now that dependency has completely been removed from the tech team.Langfuse and its top alternatives, side by side
Public customers at every proof level, and what each vendor states on its own pages. “Not checked yet” means usedby has no verified value; the vendor may publish it.
| Tool | Customers | Largest industry | Pricing | Free trial | Security |
|---|---|---|---|---|---|
| Langfuse | 17 | Fintech & Payments | Not checked yet | Not checked yet | Not checked yet |
| SigNoz | 52 | No clear lead | Not checked yet | Not checked yet | Not checked yet |
| Speakeasy | 47 | No clear lead | Not checked yet | Not checked yet | SOC 2 Type II, ISO 27001 Source |
| LangSmith | 47 | No clear lead | free plan and paid tiers Source | Yes Source | LangSmith hosted platform · SOC 2 Type II, ISO 27001, ISO 42001 Source |
| LangChain | 47 | No clear lead | free plan and paid tiers Source | Yes Source | LangChain · LangSmith hosted platform · SOC 2 Type II, ISO 27001, ISO 42001 Source |
| Braintrust | 41 | DevTools & Infrastructure | free plan and paid tiers Source | Yes Source | SOC 2 Type II Source |
Best Langfuse alternative by industry
In the industries where Langfuse has the most customers, the alternative with the most customers of its own there (at least three).
- Fintech & PaymentsLangChain5 customersLangfuse: 4
- Artificial IntelligenceE2B17 customersLangfuse: 2
- Marketing TechArize AI4 customersLangfuse: 2
- Telecommunications
Galileo5 customersLangfuse: 2 - DevTools & InfrastructureBraintrust12 customersLangfuse: 1
Often used with Langfuse
Tools of other categories that Langfuse customers also use. They do another job: they are not alternatives.
ClaudeAI assistants5 shared customers
AssembledContact center AI3 shared customers
BrightHireRecruiting3 shared customers
ElevenLabsVoice & audio generation3 shared customers
GleanEnterprise search & knowledge3 shared customers
WorkatoWorkflow automation & AI agents3 shared customers
Questions about Langfuse alternatives
What are the best Langfuse alternatives?
Ranked by their public customers on usedby: SigNoz (52 customers), Speakeasy (47 customers), and LangSmith (47 customers). See who uses SigNoz.
Which Langfuse alternatives offer a free trial?
LangSmith, LangChain, and Braintrust offer a free trial or a free plan, according to their own pricing pages.
What is the best Langfuse alternative for Fintech & Payments companies?
LangChain, with 5 customers in Fintech & Payments on usedby. Langfuse has 4 there. Fintech & Payments companies on usedby.
What is the best Langfuse alternative for Artificial Intelligence companies?
E2B, with 17 customers in Artificial Intelligence on usedby. Langfuse has 2 there. Artificial Intelligence companies on usedby.
Which tools are used with Langfuse?
Companies that use Langfuse also use Claude (5 shared), Assembled (3 shared), BrightHire (3 shared), ElevenLabs (3 shared), Glean (3 shared), and Workato (3 shared). These tools do another job: they are not alternatives.
How does usedby rank Langfuse alternatives?
Only tools of the same or a competing category, from another vendor, count. They are ranked by their public customers at every proof level, job posts included; a tie goes to the stronger proofs (more confirmed, then more observed). Each tool shows its mix: confirmed (a case study, a press release), observed (the vendor’s customer page), signal (a job post, the weakest proof). Shared customers are shown for information and never set the order. Tools of other categories that the same companies use are listed apart, as tools used with Langfuse. usedby does not publish departures, so no company is shown switching from Langfuse to another tool.