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Average Ratings 0 Ratings

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features
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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

PromptPerfekt is a specialized tool aimed at assisting users in formulating accurate and impactful prompts for large language models and other AI technologies. It includes features such as automatic prompt enhancement, compatibility with various AI systems like ChatGPT, GPT-3/3.5/4, DALL-E 2, Stable Diffusion, and MidJourney, as well as customizable multi-goal optimization to meet diverse requirements. The platform is capable of delivering refined prompts in under 10 seconds and offers support for multiple languages, ensuring it can be beneficial for users around the world. Additionally, PromptPerfekt boasts a user-friendly API and data export functionalities, which facilitate smooth integration into current workflows, enhancing productivity and efficiency. This makes it an invaluable resource for anyone looking to maximize the effectiveness of their AI interactions.

API Access

Has API

API Access

Has API

Screenshots View All

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Screenshots View All

Integrations

ChatGPT
DALL·E 2
GPT-3
GPT-3.5
GPT-4
Midjourney
Stable Diffusion

Integrations

ChatGPT
DALL·E 2
GPT-3
GPT-3.5
GPT-4
Midjourney
Stable Diffusion

Pricing Details

$60 one time
Free Trial
Free Version

Pricing Details

No price information available.
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

Perfekt Prompt

Country

United States

Website

promptperfekt.com

Product Features

Alternatives

Alternatives