VizPy— Review, Pricing, Alternatives

VizPy offers a free tier that includes 10 optimization runs per month, community support, and access to both PromptGrad and ContraPrompt optimizers. This allows users to try out the service before committing to a paid plan.

VizPy has a tiered pricing structure starting with a free plan. Paid plans include Pro at $20/month for 200 optimization runs and Enterprise at $200/month for 1,000 optimization runs. Each optimization run is equivalent to one credit.

While VizPy focuses on turning prompt failures into executable rules, alternatives like DSPy offer a framework for programmatically optimizing prompts. Other approaches might involve prompt engineering services or fine-tuning models, depending on the specific needs.

To install VizPy, you can use pip with the command `pip install vizpy dspy-ai`. You will also need to set your VizPy API key and your language model provider's API key as environment variables.

Yes, VizPy is designed to work with a variety of language models. It supports hosted APIs from providers like OpenAI, Anthropic, Mistral, Google Gemini, and Cohere, as well as self-hosted solutions like Ollama and vLLM, and any OpenAI-compatible endpoint.

VizPy optimizes prompts by learning from failures. It identifies where a prompt fails, extracts the underlying rule, and injects precise corrections into the instructions. This process uses either PromptGrad for generation tasks or ContraPrompt for classification tasks.

VizPy's documentation does not explicitly detail GDPR compliance or specific security certifications. However, it states that the optimizer runs on VizPy's servers using your API key, while your model and data remain hosted by you.