neuralflow

Ship LLM
products
that work.

NeuralFlow is the end-to-end platform for building world-class AI apps.

TRUSTED BY AI TEAMS AT

instacart
stripe
zapier
Airtable
Notion
replit
Brex
Vercel
ramp
THE BROWSER COMPANY
OF NEW YORK

Evaluate your prompts and models

Non-deterministic models make building applications difficult. Adapt your dev lifecycle for the AI era with NeuralFlow's workflows.

Easily answer questions like "which examples regressed when we changed the prompt?" or "what happens if I try this new model?"

Learn more in docs→ Playground→ Eval via UI→ Eval via SDK
Clarity
89%
GPT-4o
10K 12.44s +$0.010
Moderation
60%
Claude 3.5 Sonnet
1,958 TOK 11.24s +$0.008
Security
54%
Gemini Pro
2,610 TOK 9.23s +$0.008
Hallucination
33%
Llama 3.5
1,620 TOK 10.2s +$0.014
Summary
29%
Sonar large online
1,004 TOK 12.2s +$0.004
Translation
51%
o1 mini
1,539 TOK 8.07s +$0.018
Levenstein distance
67%
Mistral N
1,021 TOK 4.83s

Anatomy of an eval

NeuralFlow evals are composed of three components—a prompt, scorers, and a dataset of examples.

Prompt
GPT 4o
System

Based on the following description, identify the movie title. In your response, simply provide the name of the movie.

User
{{input}}

Prompt

Tweak LLM prompts from any AI provider, run them, and track their performance over time. Seamlessly and securely sync your prompts with your code.

→ Prompts guide
Prompt
LLM-as-a-judgeTypescriptPython
Typescript
// Enter handler function that returns a score between 0 and 1
function handler({
output,
expected
}: {
output: string,
expected: string
}): number {

Scorers

Use industry standard autoevals or write your own using code or natural language. Scorers take an input, the LLM output, and an expected value to generate a score.

→ Scorers guide
All rowsColumnsFilterRow height
InputExpected
A thief who enters the dreams of others to steal secrets must...Inception
An orphaned boy discovers he's a wizard on his 11th birthday...Harry Potter
A former Roman General sets out to exact vengeance against...Gladiator
Earth's mightiest heroes must come together and learn to fight...The Avengers
Luke Skywalker joins forces with a Jedi Knight, a cocky pilot...Star Wars

Dataset

Capture rated examples from staging and production and incorporate them into "golden" datasets. Datasets are integrated, versioned, scalable, and secure.

→ Datasets guide

Join industry leaders

"NeuralFlow fills the missing (and critical!) gap of evaluating non-deterministic AI systems."

zapier
Sarah Chen
Cofounder/Head of AI

"I've never seen a workflow transformation like the one that incorporates evals into 'mainstream engineering' processes before. It's astonishing."

▲Vercel
Marcus Rodriguez
CTO

"NeuralFlow finally brings end-to-end testing to AI products, helping companies produce meaningful quality metrics."

replit
Elena Vasquez
President

"We log everything to NeuralFlow. They make it very easy to find and fix issues."

Notion
David Kim
Cofounder

"Every new AI project starts with evals in NeuralFlow—it's a game changer."

Airtable
Alex Thompson
Eng. Manager, AI