Langfuse vs Superlog
Which Developer Tools AI tool is better in 2026?
Langfuse
Open source LLM engineering platform for debugging, analyzing, and iterating on LLM applications
Superlog
AI-native observability that installs itself and ships pull requests to fix the bugs it finds.
Side-by-side
Langfuse leads on both fronts — more capital raised ($8M) and a lower entry price than Superlog.
| Metric | Langfuse | Superlog |
|---|---|---|
| Taglinei | Open source LLM engineering platform for debugging, analyzing, and iterating on LLM applications | AI-native observability that installs itself and ships pull requests to fix the bugs it finds. |
| Foundedi | 2023🏆 | 2026 |
| HQi | DE | San Francisco, US |
| Employeesi | 11-50🏆 | 1-10 |
| Neuron scorei | 52🏆 | 49 |
| Total fundingi | $8M🏆 | $500K |
| Latest roundi | Seed · Nov 2023 | Seed · Mar 2026 |
| Valuationi | — | — |
| Cheapest paid plani | From $29/mo🏆 | Pricing not disclosed |
| Free plani | ✓ | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Free · From $29/mo | Contact-sales |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Langfuse and Superlog.
| Capability | Langfuse | Superlog |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 3 (Python, JavaScript, TypeScript) | 2 (JavaScript, TypeScript) |
| Free plan | ✓ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Langfuse
- Has raised more capital ($8M vs $500K)
- Higher Neuron score (52 vs 49)
- Offers a free plan
- Lower starting price ($29/mo)
🔵 Strengths of Superlog
- Newer company (2026)
Which should you choose?
Choose Langfuse if price matters most — it starts at Free · From $29/mo, which is friendlier for teams watching burn. Both AI Developer Tools tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Langfuse if you want the most established option — it has raised $8M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Langfuse vs Superlog — which is better?
It depends on your priority. Langfuse has raised more capital and is the more established option; Superlog has broader feature depth. See the side-by-side table above.
Is Langfuse cheaper than Superlog?
Yes — Langfuse's cheapest paid plan is Free · From $29/mo, while Superlog's is Contact-sales.
Do Langfuse and Superlog offer free plans?
Langfuse: Yes, has a free plan. Superlog: Paid only.
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