Best Alternatives to Vellum
Explore 5 top-rated alternatives to Vellum in the llm development platforms category. Compare features, pricing, and find the perfect fit for your needs.
About Vellum
Development platform for production LLM apps: prompt engineering, evaluation, retrieval, and workflow orchestration in one workspace.
Freemium
Top Recommended Alternatives
Braintrust
LLM Observability
From
FreeAI observability platform for evals, production tracing, prompt management, and regression detection.
Key Strengths:
- ✓Evals, tracing, and prompt playground in a single shared workbench
- ✓Playground pulls real production traces in for side-by-side comparison
Langfuse
LLM Observability
From
FreeLangfuse is an open-source LLM observability and engineering platform providing tracing, prompt management, evaluations, and dataset management for production AI applications.
Key Strengths:
- ✓Open source with free self-hosting — full feature parity without usage limits
- ✓Free Hobby tier on cloud with no credit card — lowest barrier to entry in the category
Helicone
LLM Observability
From
FreeOpen-source LLM observability and AI gateway — logs every prompt, response, cost, and latency across 20+ providers with a one-line proxy or async SDK, plus caching, retries, and prompt experiments.
Key Strengths:
- ✓5-minute proxy integration captures full traces, cost, and latency across 20+ providers
- ✓Real AI gateway features (caching, retries, fallback, key vault) replace a custom proxy
Portkey
LLM Gateway & Observability
From
FreeProduction AI control plane: AI gateway, prompt management, observability, guardrails, and MCP gateway in front of 1,600+ LLM providers.
Key Strengths:
- ✓OpenAI-compatible API gives teams one integration point while still routing to 1,600+ models across providers such as OpenAI, Anthropic, Google, Mistral, AWS Bedrock, Azure OpenAI, Cohere, Together, Fireworks, and Groq.
- ✓Fallback and load-balancing are built into the gateway layer, so reliability policies can be configured centrally instead of duplicated across each application service.
Stack AI
AI Agents & Autonomous Workflows
From
FreeVisual builder for enterprise AI agents and workflows, with on-prem deployment and SOC2 compliance.
Key Strengths:
- ✓One of few low-code builders with SOC2 + HIPAA + on-prem
- ✓Fortune 500 customer base provides confidence for procurement
Quick Comparison
Why Consider Vellum Alternatives?
While Vellum is a popular choice in the llm development platforms category, exploring alternatives can help you find a tool that better matches your specific needs, budget, or workflow preferences.
Common reasons to explore alternatives include:
- Different pricing models or more affordable options
- Specific features that Vellum may not offer
- Better integration with your existing tools
- Performance or user experience preferences
- Regional availability or support requirements
Compare the tools above to find the best fit for your specific use case.
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