Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Description

LangFast is a streamlined prompt testing platform aimed at product teams, prompt engineers, and developers working with large language models. It offers immediate access to a customizable prompt playground without requiring signup, making prompt experimentation quick and hassle-free. Users can create, test, and share prompt templates using Jinja2 syntax, while receiving real-time raw outputs directly from the LLM, avoiding complicated API layers. This reduces the friction typically associated with manual prompt testing, allowing teams to validate and iterate faster. Developed by a team experienced in scaling AI SaaS products to millions of users, LangFast provides full control over the prompt development lifecycle. The platform also fosters improved team collaboration by enabling easy sharing and iteration. Its pay-as-you-go pricing ensures users only pay for what they use, keeping budgets under control. LangFast is ideal for teams seeking a flexible, cost-effective solution for prompt engineering.

Description

Enhance and maintain your prompts using version control techniques. Implement an auto-generated API to access your prompts seamlessly. Conduct comprehensive end-to-end testing of your LLM before deploying any updates to production prompts. Facilitate collaboration between industry experts and engineers on a unified platform. Allow your industry specialists and prompt engineers to experiment and refine their prompts without needing programming expertise. Our testing suite enables you to design and execute an unlimited number of test cases, ensuring the optimal quality of your prompts. Evaluate for hallucinations, potential issues, edge cases, and more. This suite represents the pinnacle of prompt complexity. Utilize Git-like functionalities to oversee your prompts effectively. Establish a repository for each specific project, allowing for the creation of multiple branches to refine your prompts. You can commit changes and evaluate them in an isolated environment, with the option to revert to any previous version effortlessly. With our real-time APIs, a single click can update and deploy your prompt instantly, ensuring that your latest revisions are always live and accessible to users. This streamlined process not only improves efficiency but also enhances the overall reliability of your prompt management.

API Access

Has API

API Access

Has API

Screenshots View All

No images available

Screenshots View All

Integrations

No details available.

Integrations

No details available.

Pricing Details

$60 one time
Free Trial
Free Version

Pricing Details

Free
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Langfa.st

Founded

2025

Country

United States

Website

langfa.st/new

Vendor Details

Company Name

Prompteams

Website

www.prompteams.com

Product Features

Alternatives

Alternatives