Software Alternatives, Accelerators & Startups

Insomnia REST VS OpenAI

Compare Insomnia REST VS OpenAI and see what are their differences

Insomnia REST logo Insomnia REST

Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

OpenAI logo OpenAI

GPT-3 access without the wait
  • Insomnia REST Landing page
    Landing page //
    2023-10-05
  • OpenAI Landing page
    Landing page //
    2023-07-29

Insomnia REST features and specs

  • User-Friendly Interface
    Insomnia REST features a clean and intuitive user interface that makes it easy to create, send, and manage API requests without a steep learning curve.
  • Support for Multiple Protocols
    In addition to REST, Insomnia supports GraphQL and gRPC, making it versatile for developers working with different API protocols.
  • Environment Management
    Insomnia allows you to create and manage multiple environments, making it easier to switch between staging, development, and production settings.
  • Custom Plugins and Themes
    Insomnia supports custom plugins and themes, allowing users to extend its functionality and personalize the interface to suit their workflow.
  • Collaboration Features
    With Insomnia Teams, users can collaborate and share API requests, environments, and other resources, enhancing team productivity.
  • Cross-Platform Availability
    Insomnia is available on multiple platforms, including Windows, macOS, and Linux, providing flexibility for users on different operating systems.

Possible disadvantages of Insomnia REST

  • Resource Heavy
    Some users have reported that Insomnia can be resource-intensive, leading to potential performance issues on lower-end machines.
  • Limited Free Features
    While Insomnia offers a free tier, some of the more advanced features, such as team collaboration and sync capabilities, require a paid subscription.
  • Steeper Learning Curve for Advanced Features
    Although the basic functionalities are user-friendly, mastering the more advanced features might require a steeper learning curve.
  • Dependency on Electron
    Since Insomnia is built on Electron, it might consume more memory and disk space compared to native applications.
  • Complex Plugin System
    While the plugin system is powerful, it can be complex and challenging for users who are not familiar with JavaScript and Node.js.

OpenAI features and specs

  • Advanced AI Research
    OpenAI is at the forefront of artificial intelligence research, consistently delivering cutting-edge technology and tools that push the boundaries of what AI can achieve.
  • User-Friendly Tools
    OpenAI offers user-friendly interfaces, such as APIs and platforms like GPT-3, which allow developers of varying skill levels to integrate advanced AI solutions into their applications.
  • Broad Application Scope
    The AI models developed by OpenAI can be implemented across diverse fields such as healthcare, finance, education, and more, making them versatile and widely useful.
  • Commitment to Safety
    OpenAI places a strong emphasis on ensuring the safety of AI technologies, conducting rigorous research and establishing guidelines to mitigate potential risks associated with AI development and deployment.
  • Strong Community and Ecosystem
    OpenAI fosters a collaborative community of researchers, developers, and businesses, providing ample resources, documentation, and support to encourage innovation and sharing of knowledge.

Possible disadvantages of OpenAI

  • High Cost
    Access to advanced models, like GPT-3, can be expensive, potentially limiting availability to larger organizations or those with significant budgets, which may exclude smaller businesses or independent developers.
  • Ethical Concerns
    There are ongoing ethical debates regarding the use of AI technologies developed by OpenAI, including concerns about bias, job displacement, and the potential misuse of AI in harmful ways.
  • Data Privacy
    Implementing AI solutions often involves handling sensitive data, raising concerns about data privacy and how user information is managed and protected within the OpenAI ecosystem.
  • Resource Intensive
    Running and maintaining advanced AI models typically requires significant computational resources, making it challenging for organizations without access to large-scale infrastructure.
  • Dependence on Internet Connectivity
    Many of OpenAI's tools and services are cloud-based, necessitating reliable internet access for optimal functioning, which may be a limiting factor in areas with poor connectivity.

Insomnia REST videos

3 Reasons to use Insomnia REST Client in your Exploratory API Testing

More videos:

  • Tutorial - Insomnia REST Client Tutorial

OpenAI videos

OpenAI GPT-3 - Good At Almost Everything! 🤖

More videos:

  • Review - I Just Got Access to OpenAI Beta – Here's what happened
  • Review - OpenAI codes my website in 152 WORDS! First look at OpenAI Codex

Category Popularity

0-100% (relative to Insomnia REST and OpenAI)
API Tools
100 100%
0% 0
AI
0 0%
100% 100
Developer Tools
62 62%
38% 38
Productivity
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Insomnia REST and OpenAI

Insomnia REST Reviews

Top 20 Open Source & Cloud Free Postman Alternatives (2024 Updated)
Product Introduction: Insomnia is a powerful open-source API client designed for simplicity and efficiency and works great as a postman alternative. It supports REST, GraphQL, and gRPC, making it versatile for various API types.
Source: medium.com
Best Postman Alternatives To Consider in 2025
It is a free, open-source platform that boasts a user-friendly interface and robust features like environment and collection management, code snippets, and test automation. Compared to Postman, Insomnia offers a lighter footprint and a more customizable workspace.
Postman Alternatives for API Testing and Monitoring
Insomnia is a user-friendly tool for API development and testing. Insomnia allows creating and sending HTTP and REST requests, like GET, POST, PUT, DELETE, and more. Users can view API responses, including status codes, headers, and body. This enables understanding how the application handles different response scenarios, for efficient debugging.
Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
Insomnia REST is the best alternative for Postman. It has more than 350 open-source plugins, plus GraphQL built-in with multiple protocol support. Since GraphQL is an added value, you can fully automate the entire lifecycle of APIs, build and debug them efficiently and with ease.
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
Insomnia by Kong enables you to deliver high-quality APIs through collaboration. This postman alternative also includes testing suites, which allow you to create functional tests and centralize APIs. With this platform’s streamlined API client, sending GraphQL, REST, and SOAP requests are simple. Defining variables such as authentication credentials allows you to manage...
Source: testsigma.com

OpenAI Reviews

Top 31 ChatGPT alternatives that will blow your mind in 2023 (Free & Paid)
OpenAI is an artificial intelligence research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit organization OpenAI Nonprofit. OpenAI is driven by the goal of advancing digital intelligence in the way that is most likely to benefit humanity as a whole, unconstrained by a need to generate a financial return. The team at...
Source: writesonic.com

Social recommendations and mentions

Based on our record, OpenAI should be more popular than Insomnia REST. It has been mentiond 366 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Insomnia REST mentions (129)

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OpenAI mentions (366)

  • Build Code-RAGent, an agent for your codebase
    The only thing left to do then was to build something that could showcase the power of code ingestion within a vector database, and it immediately clicked in my mind: "Why don't I ingest my entire codebase of solved Go exercises from Exercism?" That's how I created Code-RAGent, your friendly coding assistant based on your personal codebases and grounded in web search. It is built on top of GPT-4.1, powered by... - Source: dev.to / 19 days ago
  • Discover the Best HTML Code Generator for Web Development
    If you just need a quick and accessible start to your projects, you can use online HTML generators. These include online HTML editor demos and even AI-powered LLMs like ChatGPT. To get started, visit the site of your preferred online editor. - Source: dev.to / 24 days ago
  • Building a Full-Stack AI Chatbot with FastAPI (Backend) and React (Frontend)
    OpenAI's GPT Models: Powerful and versatile, capable of generating human-like text. https://openai.com/. - Source: dev.to / 27 days ago
  • When AI Model Upgrades No Longer Excite Us—What Surprises Are Still in Store?
    This morning, like any other, I scrolled through my phone the moment I woke up. One headline caught my eye: ​OpenAI releases a new model​. Well, I thought, there’s this week’s content topic sorted. - Source: dev.to / about 1 month ago
  • OpenAI Unveils o3 and o4-mini: Pioneering AI Models Elevate Reasoning Capabilities
    April 17, 2025: OpenAI has introduced two groundbreaking AI models on Wednesday, o3 and o4-mini, marking a significant advancement in artificial intelligence reasoning capabilities. These models are designed to enhance performance in complex tasks, integrating visual comprehension and advanced problem-solving skills. - Source: dev.to / about 1 month ago
View more

What are some alternatives?

When comparing Insomnia REST and OpenAI, you can also consider the following products

Postman - The Collaboration Platform for API Development

ChatGPT - ChatGPT is a powerful, open-source language model.

Hoppscotch - Open source API development ecosystem

Awesome ChatGPT Prompts - Game Genie for ChatGPT

RapidAPI for Mac - Paw is a REST client for Mac.

Writesonic - If you’ve ever been stuck for words or experienced writer’s block when it comes to coming up with copy, you know how frustrating it is.