Multi Model Prompt Testing

via “multi-model playground with version-controlled prompt variants”

Open-source LLMOps platform for prompt management and evaluation.

Unique: Implements variant management as first-class entities linked to Applications with immutable snapshots, rather than treating versions as linear history. Uses LiteLLM proxy service to abstract provider differences, enabling single-interface testing across OpenAI, Anthropic, Ollama, and 100+ other models without code changes.

vs others: Faster iteration than Promptfoo because variants are persisted server-side with automatic state management, and supports real-time collaboration via shared workspace sessions rather than CLI-only workflows.