Langfa.st vs. AIforGoogleSlides
Langfa.st
Langfa.st is a fast and minimal playground for testing and refining AI prompts. It supports over 50 large language models, including OpenAI, Anthropic, Mistral, Cohere, Google, and others — all available instantly without setup. You can insert variables, use Jinja2 templating, and compare outputs across models. There’s no need to sign up or bring your own API keys — it works out of the box. Langfa.st was built to eliminate the friction of existing tools: complicated UIs, required credentials, or overpriced subscriptions. It gives AI teams and prompt engineers a clean, disposable space to experiment, debug, and iterate — all in one tab. Free to use. You only pay if you need more volume or power features.
AIforGoogleSlides
Use AI for Google Slides to quickly create new professional, presentations using AI. AI for Google Slides is an easy to use add-on that makes it easy for users to create new presentations and edit old presentations using AI - directly in Google Slides. AI for Google Slides can be installed in seconds from the Google Workspace Marketplace, and it only takes a minute to create your first presentation. Try creating a presentation from a prompt or a PDF to see the different creation options available to you with AI for Google Slides. The best part of making a new slide deck with AI for Google Slides is that it's easy to edit it and share it from Google Slides once you are done. Because it's a native add-on, it's fully compatible with your existing presentations, so you don't have to learn how to operate a new tool in order to make the most out of the AI.
Reviews
Reviews
| Item | Votes | Upvote |
|---|---|---|
| Works without login or API key | 1 | |
| Supports 50+ models out of the box | 1 | |
| Built-in support for variables and Jinja2 templating | 1 | |
| Instant response, no setup required | 1 | |
| Clean and distraction-free UI | 1 |
| Item | Votes | Upvote |
|---|---|---|
| No custom API key support (yet) | 1 | |
| Not ideal for running complex multi-turn chats | 1 |
| Item | Votes | Upvote |
|---|---|---|
| Native Google Slides add-on | 1 | |
| Professional slide templates | 1 |
| Item | Votes | Upvote |
|---|---|---|
| No cons yet, would you like to add one? | ||
Frequently Asked Questions
Langfa.st is primarily designed for testing and refining AI prompts across multiple language models, making it less suitable for creating presentations. In contrast, AI for Google Slides is specifically tailored for generating and editing presentations directly within Google Slides, offering professional templates and seamless integration. Therefore, if your goal is to create presentations, AI for Google Slides is the better choice.
Langfa.st provides a unique environment for experimenting with over 50 AI models and includes features like variable support and Jinja2 templating, which are not relevant to presentation creation. AI for Google Slides, while more limited in terms of AI model support, focuses on enhancing the presentation creation process with professional templates and ease of use. The choice depends on whether you need a tool for AI experimentation or for creating presentations.
AI for Google Slides is designed to be user-friendly as a native add-on within Google Slides, allowing users to create and edit presentations quickly without needing to learn a new interface. Langfa.st, while also easy to use with no login required, is more focused on AI prompt testing rather than presentation creation. If ease of use for presentations is your priority, AI for Google Slides is the better option.
Langfa.st is a fast and minimal playground for testing and refining AI prompts. It supports over 50 large language models, including OpenAI, Anthropic, Mistral, Cohere, Google, and others — all available instantly without setup. Users can insert variables, use Jinja2 templating, and compare outputs across models without needing to sign up or provide API keys.
Pros of Langfa.st include: it works without login or API key, supports over 50 models out of the box, has built-in support for variables and Jinja2 templating, provides instant responses with no setup required, and features a clean and distraction-free user interface.
Cons of Langfa.st include the lack of custom API key support at this time and it may not be ideal for running complex multi-turn chats.
Langfa.st is particularly beneficial for AI teams and prompt engineers who need a clean, disposable space to experiment, debug, and iterate on AI prompts without the friction of complicated UIs or required credentials.
Yes, Langfa.st is free to use. Users only pay if they need more volume or access to power features.
AIforGoogleSlides is a Google Slides add-on that allows users to quickly create and edit professional presentations using AI. It can be installed from the Google Workspace Marketplace and offers various creation options, such as starting from a prompt or a PDF. As a native add-on, it seamlessly integrates with Google Slides, making it easy to edit and share presentations.
Pros of AIforGoogleSlides include being a native Google Slides add-on, which ensures full compatibility with existing presentations, and offering professional slide templates that enhance the quality of presentations. Currently, there are no listed cons for AIforGoogleSlides.
