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Bifrost vs Langfuse
Short answer: Pick Bifrost if you want fast, governed LLM routing; pick Langfuse if you want LLM observability & analytics. Bifrost has a free plan; Langfuse has a free plan, paid from $29/month.
BifrostThe fastest LLM gateway in the market.png?width=96)
LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️Which to pick
Pick Bifrost if you want…
- Fast, governed LLM routing
- Integrations with Google GenAI, HashiCorp Vault or AWS Secrets Manager (on Bifrost's list, not Langfuse's)
Pick Langfuse if you want…
- LLM observability & analytics
- Integrations with Python, TypeScript or Go (on Langfuse's list, not Bifrost's)
Side by side
- What it is
- Bifrost:Bifrost is an open-source, high-performance LLM gateway that provides fast, scalable routing, governance and observability for AI models.
- Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
- Best for
- Bifrost:Fast, governed LLM routing
- Langfuse:LLM observability & analytics
- Who it’s for
- Bifrost:AI teams and enterprises needing reliable, low-latency LLM routing and management.
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- Pricing
- Bifrost:Freemium
- Langfuse:Freemium
- Starting price
- Bifrost:—
- Langfuse:$29/month (Core)
- Free plan or trial
- Bifrost:Free plan (OSS) · Free trial
- Langfuse:Free plan (Hobby)
- Plans
- Bifrost:OSS Free
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- Open source
- Bifrost:Yes, 8,528 GitHub stars
- Langfuse:Yes, 35,097 GitHub stars
- Works with
- Bifrost:OpenAI, Anthropic, Vercel AI SDK, LangChain, Google GenAI, LiteLLM, HashiCorp Vault, AWS Secrets Manager
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
Bifrost features
- Low-latency routing. Adds only 11 µs latency at 5,000 RPS, 40-50× faster than LiteLLM.
- Robust governance. Weighted API-key rotation, virtual keys, budgets and SSO support.
- Plugin-first architecture. Simple custom plugin creation without callback complexity.
- MCP integration. Built-in Model Context Protocol for tool execution and federated auth.
- Built-in observability. OpenTelemetry metrics, tracing and dashboard for real-time monitoring.
- Guardrails & safety. Real-time content protection and compliance enforcement.
- Drop-in replacement. Replace any AI SDK with one line change; works with OpenAI, Anthropic, Vercel AI SDK, LangChain, Google GenAI, LiteLLM and more.
- Enterprise features. Cluster mode, adaptive load balancing, VPC/on-prem deployment, Vault secret management and SLA support.
Langfuse features
- Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
- Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
- Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
- Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
- Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
- Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
- Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
- Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Bifrost vs Langfuse FAQ
What is the difference between Bifrost and Langfuse?+
Langfuse: Offers LLM app observability but not routing or gateway features.
Should I use Bifrost or Langfuse?+
Pick Bifrost if you want fast, governed LLM routing or integrations with Google GenAI, HashiCorp Vault or AWS Secrets Manager (on Bifrost's list, not Langfuse's). Pick Langfuse if you want LLM observability & analytics or integrations with Python, TypeScript or Go (on Langfuse's list, not Bifrost's).
Is Bifrost or Langfuse free?+
Bifrost has a free plan (OSS) and paid plans. Langfuse has a free plan (Hobby); paid plans start at $29/month (Core).
Is Bifrost or Langfuse open source?+
Yes, both are open source: Bifrost (maximhq/bifrost on GitHub, Apache-2.0 license) and Langfuse (langfuse/langfuse on GitHub).
Do Bifrost and Langfuse integrate with the same tools?+
Partly. Both list OpenAI, Anthropic, Vercel AI SDK, LangChain and 1 more. Bifrost also lists Google GenAI, HashiCorp Vault, AWS Secrets Manager, Google Secret Manager and 1 more; Langfuse also lists Python, TypeScript, Go, Java and 5 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.