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Average Ratings 0 Ratings
Description
Automated voice testing, monitoring and more. Test your AI voice agent with 1000s of simulated users within minutes. It's hard to get AI voice agents right. LLM outputs can be affected by a small change in the prompts, function calls or model providers. We are the only platform that can support you from development through to production. Hamming allows you to store, manage, update and sync your prompts with voice infra provider. This is 1000x faster than testing voice agents manually. Use our prompt playground for testing LLM outputs against a dataset of inputs. Our LLM judges quality of generated outputs. Save 80% on manual prompt engineering. Monitor your app in more than one way. We actively track, score and flag cases where you need to pay attention. Convert calls and traces to test cases, and add them to the golden dataset.
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.
API Access
Has API
No
API Access
Has API
No
Screenshots View All
No images available
Integrations
Claude
Yes
Gemini
Yes
Gemini 1.5 Flash
Yes
Gemini 1.5 Pro
Yes
Gemini 2.0
Yes
Gemini 2.0 Flash
Yes
Gemini Enterprise
Yes
Gemini Nano
Yes
Gemini Pro
Yes
Google AI Plus
Yes
Integrations
Claude
No
Gemini
No
Gemini 1.5 Flash
No
Gemini 1.5 Pro
No
Gemini 2.0
No
Gemini 2.0 Flash
No
Gemini Enterprise
No
Gemini Nano
No
Gemini Pro
No
Google AI Plus
No
Pricing Details
No price information available.
Free Trial
Yes
Free Version
No
Pricing Details
$60 one time
Free Trial
Yes
Free Version
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
Yes
In Person
No
Types of Training
Training Docs
No
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Hamming
Website
hamming.ai/
Vendor Details
Company Name
Langfa.st
Founded
2025
Country
United States
Website
langfa.st/new