Free
GPT Prompt Engineer
Prompt engineering
Open-source Python project that generates and evaluates prompt variations against a task description. Review repository status and API costs.
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Prompter Engineer
Prompt engineering
Prompt-building and management utility for composing prompts for AI models. Verify current access and supported model formats.
Paid
Parea
Prompt engineering
Evaluation and experimentation platform for testing and improving LLM applications. Check current documentation for supported providers, tracing, and pricing.