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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
Introducing Narrow AI: Eliminating the Need for Prompt Engineering by Engineers
Narrow AI seamlessly generates, oversees, and fine-tunes prompts for any AI model, allowing you to launch AI functionalities ten times quicker and at significantly lower costs.
Enhance quality while significantly reducing expenses
- Slash AI expenditures by 95% using more affordable models
- Boost precision with Automated Prompt Optimization techniques
- Experience quicker responses through models with reduced latency
Evaluate new models in mere minutes rather than weeks
- Effortlessly assess prompt effectiveness across various LLMs
- Obtain benchmarks for cost and latency for each distinct model
- Implement the best-suited model tailored to your specific use case
Deliver LLM functionalities ten times faster
- Automatically craft prompts at an expert level
- Adjust prompts to accommodate new models as they become available
- Fine-tune prompts for optimal quality, cost efficiency, and speed while ensuring a smooth integration process for your applications.
API Access
Has API
API Access
Has API
Screenshots View All
No images available
Screenshots View All
No images available
Integrations
GPT-4
GPT-4o
Llama 3.1
Pricing Details
$60 one time
Free Trial
Free Version
Pricing Details
$500/month/team
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
Narrow AI
Founded
2024
Country
United States
Website
www.getnarrow.ai/