Prompt Octopus is a Visual Studio Code (VSCode) extension designed to streamline prompt engineering by enabling developers to evaluate and compare responses from over 40 large language models (LLMs) directly within their codebase. By highlighting a prompt, users can select multiple models—including OpenAI, Anthropic, DeepSeek, Mistral, and Grok—and view their outputs side by side, facilitating efficient model selection and prompt optimization. Key Features: - Extensive Model Support: Access to more than 40 LLMs, allowing comprehensive evaluation across various platforms. - Side-by-Side Comparisons: Directly compare model responses within the VSCode environment to identify the most suitable model for specific tasks. - Prompt and Model Preference Management: Save and manage preferred prompts and model configurations for consistent and efficient testing. - Flexible API Key Integration: Users can input their own API keys, which are stored locally and never transmitted to external servers, ensuring privacy and security. - Free and Paid Options: The extension offers 10 free comparisons without requiring API keys or payment. For unlimited usage via Prompt Octopus servers, users can upgrade for $10 per month. Primary Value: Prompt Octopus addresses the challenge of efficiently evaluating and selecting the most appropriate LLM for specific tasks. By integrating directly into the VSCode environment, it eliminates the need for external tools or platforms, streamlining the development workflow. This facilitates rapid iteration and optimization of prompts, ultimately enhancing productivity and the quality of AI-driven applications.