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Average Ratings 0 Ratings

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ease
features
design
support

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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 your team's prompt engineering capabilities by guaranteeing top-notch outputs from LLMs through automated testing and thorough evaluation. Streamline the creation and organization of your prompts, allowing for easy templating, saving, and structuring of prompt settings. Conduct automated tests and receive detailed results within seconds, which will help you save valuable time and boost your productivity. Organize your prompt settings meticulously, and deploy them instantly for integration into your own software solutions. Design, test, and implement prompts with remarkable speed and efficiency. Empower your entire team and effectively reconcile technical execution with practical applications. With PromptPoint’s intuitive no-code platform, every team member can effortlessly create and evaluate prompt configurations. Adapt with ease in a diverse model landscape by seamlessly interfacing with a multitude of large language models available. This approach not only enhances collaboration but also fosters innovation across your projects.

API Access

Has API

API Access

Has API

Screenshots View All

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Integrations

ChatGPT
Claude
Gemini
Gemini 1.5 Flash
Gemini 1.5 Pro
Gemini 2.0
Gemini 2.0 Flash
Gemini Advanced
Gemini Nano
Gemini Pro
JSON
Meta Pixel

Integrations

ChatGPT
Claude
Gemini
Gemini 1.5 Flash
Gemini 1.5 Pro
Gemini 2.0
Gemini 2.0 Flash
Gemini Advanced
Gemini Nano
Gemini Pro
JSON
Meta Pixel

Pricing Details

$60 one time
Free Trial
Free Version

Pricing Details

$20 per user per month
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

PromptPoint

Website

www.promptpoint.ai/

Product Features

Alternatives

Alternatives