#1 alternative
OpenObserveOpenTelemetry-native observability for LLM calls, tools, and agent handoffs
Free planllm-observability
Similar workflow fit
Useful alternative option
Alternatives guide
Best Vellum Alternatives in 2026
Looking for alternatives to Vellum? Compare similar AI tools selected automatically by category, tags, pricing, popularity, and user engagement on Toolglade.
Compared against
Vellum
llm-observability
Build, evaluate, and deploy LLM apps and agents with confidence.
Quick comparison
Tool
Category
Pricing
Rating
Action
OpenObserve
OpenTelemetry-native observability for LLM calls, tools, and agent handoffs
llm-observability
Free plan
—
Helicone
Open-source LLM observability and AI gateway in one line of code.
llm-observability
Free plan
—
Chatbase
Build AI support agents trained on your own data, no code required.
agent-frameworks
Free plan
—
Nanonets
AI agents and document models that turn unstructured documents into structured data
document-ai
Free plan
—
Top Vellum alternatives
Dynamic recommendations based on similar categories, tags, use cases, pricing, and popularity signals.
#2 alternative
HeliconeOpen-source LLM observability and AI gateway in one line of code.
Free planllm-observability
Similar workflow fit
Useful alternative option
#3 alternative
VoiceflowA collaborative platform to design, build and ship AI agents.
Free plancustomer-support
Similar workflow fit
Useful alternative option
#4 alternative
LangGraphGraph-based orchestration for stateful, controllable LLM agents.
Free planagent-frameworks
Similar workflow fit
Useful alternative option
#5 alternative
LiteLLMOpen-source AI gateway to call 100+ LLM APIs in one format
Free plancoding
Similar workflow fit
Useful alternative option
#6 alternative
ChatbaseBuild AI support agents trained on your own data, no code required.
Free planagent-frameworks
Similar workflow fit
Useful alternative option
#7 alternative
TavilySearch and extraction API purpose-built for AI agents and RAG
Free planresearch
Similar workflow fit
Useful alternative option
#8 alternative
NanonetsAI agents and document models that turn unstructured documents into structured data
Free plandocument-ai
Similar workflow fit
Useful alternative option
#9 alternative
LutraTurn plain-English instructions into automated data workflows
Free planautomation
Similar workflow fit
Useful alternative option
#10 alternative
MCPJamOpen-source testing and evaluation platform for MCP servers
Free planmcp
Similar workflow fit
Useful alternative option
#11 alternative
11xAI "digital workers" for sales, including the Alice SDR and Julian phone agent.
Paidsales
Similar workflow fit
Useful alternative option
#12 alternative
RossumAI document-processing platform that automates transactional workflows end to end
Paiddocument-ai
Similar workflow fit
Useful alternative option
Why look for Vellum alternatives?
Teams and individuals compare alternatives when they need different pricing, stronger feature coverage, better integrations, or a workflow that better matches their use case.
- Pricing fit
- Feature coverage
- Team workflow
- Integration support
FAQ
What is the best Vellum alternative?
Based on Toolglade's automatic matching, OpenObserve is a strong alternative to Vellum.
Are there free alternatives to Vellum?
Some listed alternatives may offer a free plan or freemium tier. Check the pricing column and each tool's page for current details.
How are alternatives selected?
Toolglade ranks alternatives using category similarity, tags, use cases, pricing fit, views, votes, ratings, and engagement signals.