Features
Prompt Engineering
Semantic Search
Performance Monitoring
Fine Tuning
Model Versioning
Provider Agnostic
Observability
API
Testimonies
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Vellum
Vellum is a developer platform designed to build, manage, and optimize applications powered by large language models (LLMs) such as OpenAI's GPT-3 and Anthropic's Claude. It addresses key challenges in LLM adoption like prompt engineering, semantic search, observability, and fine-tuning. Vellum offers four core systems: a Playground UI for prompt iteration and testing, a Search system for embedding and semantic search on document corpora, a Manage API providing provider-agnostic monitoring and version control, and an Optimize module enabling fine-tuning of proprietary models to improve quality, cost, and latency. Targeted at businesses integrating LLM-powered features, Vellum enables efficient experimentation, versioning, monitoring, and deployment without the overhead of building complex infrastructure.
platform:web
pricing:paid
pricing:subscription
form:web-app
form:api
feature:prompt-engineering
feature:semantic-search
feature:performance-monitoring
feature:fine-tuning
feature:model-versioning
feature:provider-agnostic
feature:observability
feature:api
target:developers
target:teams
target:enterprises
use-case:machine-learning
use-case:ai-development
use-case:productivity