Helicone vs Langfuse
Zero of fourteen models named Helicone first on the direct prompt; zero named Langfuse. Helicone was named by seven of the fourteen models and Langfuse by thirteen and both carry 16 labels, so the shares below are directly comparable.
Named in one category this edition.
Named in four categories this edition.
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the LLM gateways and observability page.
By framing
HeliconeFirst choices, of fourteen modelsLangfuse
Across every category in the November 2026 Edition, Helicone and Langfuse were named in the same answer twenty-two times, of the 58 answers naming Helicone and the 54 naming Langfuse. In those answers Langfuse took the first choice two times and Helicone four.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | | |||||
| Gemini 3.5 Flash | | | ||||
| Perplexity Sonar | | |||||
| Grok 4.20 | | | | |||
| Mistral Small | ||||||
| DeepSeek V4 Flash | | |||||
| Llama 4 Maverick | ||||||
| Qwen 3.7 Flash | | |||||
| Kimi K2 | | |||||
| GLM 4.7 FlashX | | |||||
| MiniMax M2.5 | | | ||||
| GPT-6 Luna | | |||||
| Muse Glimmer 30B | |
Helicone Langfuse first choice named as an alternative argued againstblank: not namedEach cell is one answer, Helicone on the left and Langfuse on the right.The direct prompt
Neither was the first choice, one was named
1 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
13 of 14 modelsThe answer made no first choice from these two in this category.Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
Helicone10%#3 of 9Langfuse3%#6 of 9Langfuse4%#5 of 10Helicone0%#9 of 10What the models said about Helicone
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“Managed/third-party hosted gateways with weak privacy controls (e.g., some observability-focused ones like early PromptLayer or Helicone variants)” Grok 4.20 · negative prompt · soft negative
“My top pick for a typical mid-sized B2B company: Start with Helicone.” Qwen 3.7 Flash · paraphrase prompt · first choice
“I recommend Helicone as the best all-around choice” Kimi K2 · paraphrase prompt · first choice
“Excellent observability, caching, and cost analytics | Stronger on monitoring than routing; paid plans for advanced usage” Grok 4.20 · budget prompt · alternative
What the models said about Langfuse
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.
“Top Recommendation: Langfuse + Bifrost” GLM 4.7 FlashX · paraphrase prompt · first choice
“Langfuse (top if you prioritize open-source/self-hosting): Excellent framework-agnostic tracing” Grok 4.20 · paraphrase prompt · alternative
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.