High-throughput inference for high-leverage AI and data teams

High-throughput inference for high-leverage AI and data teams

Securely transform, structure, and generate unstructured datasets at the speed of thought. 20x faster, 10x cheaper, near-limitless scale - all via one simple Python SDK

Get $50 in free credits when you get started

From Idea to Millions of Requests, Simplified

Sutro takes the pain away from testing and scaling LLM batch jobs to unblock your most ambitious AI projects.

import sutro as so

from pydantic import BaseModel

class ReviewClassifier(BaseModel):

sentiment: str

user_reviews = '.

User_reviews.csv

User_reviews-1.csv

User_reviews-2.csv

User_reviews-3.csv

system_prompt = 'Classify the review as positive, neutral, or negative.'

results = so.infer(user_reviews, system_prompt, output_schema=ReviewClassifier)

Progress: 1% | 1/514,879 | Input tokens processed: 0.41m, Tokens generated: 591k

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Rapidly Prototype

Shorten development cycles by getting feedback from large batch jobs in as little as minutes before scaling up.

Reduce Costs

Get results faster and reduce costs by 10x or more by parallelizing your LLM calls through Sutro.

Scale Effortlessly

Confidently handle millions of requests, and billions of tokens at a time without the pain of managing infrastructure.

From Idea to Millions of Requests, Simplified

Sutro takes the pain away from testing and scaling LLM batch jobs to unblock your most ambitious AI projects.

import sutro as so

from pydantic import BaseModel

class ReviewClassifier(BaseModel):

sentiment: str

user_reviews = '.

User_reviews.csv

User_reviews-1.csv

User_reviews-2.csv

User_reviews-3.csv

system_prompt = 'Classify the review as positive, neutral, or negative.'

results = so.infer(user_reviews, system_prompt, output_schema=ReviewClassifier)

Progress: 1% | 1/514,879 | Input tokens processed: 0.41m, Tokens generated: 591k

█░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

Rapidly Prototype

Shorten development cycles by getting feedback from large batch jobs in as little as minutes before scaling up.

Reduce Costs

Get results faster and reduce costs by 10x or more by parallelizing your LLM calls through Sutro.

Scale Effortlessly

Confidently handle millions of requests, and billions of tokens at a time without the pain of managing infrastructure.

From Idea to Millions of Requests, Simplified

Sutro takes the pain away from testing and scaling LLM batch jobs to unblock your most ambitious AI projects.

import sutro as so

from pydantic import BaseModel

class ReviewClassifier(BaseModel):

sentiment: str

user_reviews = '.

User_reviews.csv

User_reviews-1.csv

User_reviews-2.csv

User_reviews-3.csv

system_prompt = 'Classify the review as positive, neutral, or negative.'

results = so.infer(user_reviews, system_prompt, output_schema=ReviewClassifier)

Progress: 1% | 1/514,879 | Input tokens processed: 0.41m, Tokens generated: 591k

█░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

Rapidly Prototype

Shorten development cycles by getting feedback from large batch jobs in as little as minutes before scaling up.

Reduce Costs

Get results faster and reduce costs by 10x or more by parallelizing your LLM calls through Sutro.

Scale Effortlessly

Confidently handle millions of requests, and billions of tokens at a time without the pain of managing infrastructure.

Pricing That Scales

Rows: 100K
Input tokens / row: 2K
Output tokens / row: 2K
10M100M500M1B5B10B$10K$20K$30K$40K$50K$60K400M tokens
Job size: 400M tokens (200M in / 200M out)
Lowest cost: GPT-4o Mini $75
Cost at 400M tokens:
Gemini 2.5 Flash:$560
GPT-4o Mini:$75
GPT-5:$2K

A Simple Workflow For Batch Jobs

A Simple Workflow For Batch Jobs

Prototype

Test prompts and models on a small sample. Get feedback in minutes.

Scale

Scale

Scale

Scale your LLM workflows so your team can do more in less time. Process billions of tokens in hours, not days, with no infrastructure headaches or exploding costs.

Progress: 1% | 1/2.5M Rows

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Progress: 1% | 1/2.5M Rows

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Progress: 1% | 1/2.5M Rows

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Data Orchestrators

Object Storage and Open Data Formats

Notebooks and Pythonic Coding Tools

Data Orchestrators

Object Storage and Open Data Formats

Notebooks and Pythonic Coding Tools

Data Orchestrators

Object Storage and Open Data Formats

Notebooks and Pythonic Coding Tools

Integrate

Seamlessly connect Sutro to your existing LLM workflows. Sutro's Python SDK is compatible with popular data orchestration tools, like Airflow and Dagster.

Built For Any Research workload


Synthetic Data Generation

Create high-quality instruction-tuning datasets at scale.

Synthetic Data Generation

Create high-quality instruction-tuning datasets at scale.

Scale RL Rollouts

Run high-speed, large-scale model rollouts to continuously improve task-specific model performance.

Scale RL Rollouts

Run high-speed, large-scale model rollouts to continuously improve task-specific model performance.

Large-Scale Model Evals

Rigorously test model performance across millions of data points.

Large-Scale Model Evals

Rigorously test model performance across millions of data points.

Agentic Simulations

Simulate thousands of interacting agents to test emergent behaviors.

Agentic Simulations

Simulate thousands of interacting agents to test emergent behaviors.

Population and Market Modeling

Run social simulations against massive populations of synthetic respondents and economic agents.

Population and Market Modeling

Run social simulations against massive populations of synthetic respondents and economic agents.

Scientific Modeling

Run large-scale simulations for genomics, climate science, and more.

Scientific Modeling

Run large-scale simulations for genomics, climate science, and more.

Purpose-Built Tools for Scalable LLM Workflows

Ship faster results without complex infrastructure to scale up any LLM workflow.

Synthesize

Generate high-quality, diverse, and representative synthetic data to improve model or RAG retrieval performance, without the complexity.

Classify

Automatically organize your data into meaningful categories without involving your ML engineer.

Evaluate

Benchmark your LLM outputs to continuously improve workflows, agents and assistants, or easily evaluate custom models against a new use-case.

Extract

Transform unstructured data into structured insights that drive business decisions.

Embed

Easily convert large corpuses of free-form text into vector representations for semantic search and recommendations.

Label

Enrich your data with meaningful labels to improve model training and data preparation.

Purpose-Built Tools for Scalable LLM Workflows

Ship faster results without complex infrastructure to scale up any LLM workflow.

Synthesize

Generate high-quality, diverse, and representative synthetic data to improve model or RAG retrieval performance, without the complexity.

Classify

Automatically organize your data into meaningful categories without involving your ML engineer.

Evaluate

Benchmark your LLM outputs to continuously improve workflows, agents and assistants, or easily evaluate custom models against a new use-case.

Extract

Transform unstructured data into structured insights that drive business decisions.

Embed

Easily convert large corpuses of free-form text into vector representations for semantic search and recommendations.

Label

Enrich your data with meaningful labels to improve model training and data preparation.

Purpose-Built Tools for Scalable LLM Workflows

Ship faster results without complex infrastructure to scale up any LLM workflow.

Synthesize

Generate high-quality, diverse, and representative synthetic data to improve model or RAG retrieval performance, without the complexity.

Classify

Automatically organize your data into meaningful categories without involving your ML engineer.

Evaluate

Benchmark your LLM outputs to continuously improve workflows, agents and assistants, or easily evaluate custom models against a new use-case.

Extract

Transform unstructured data into structured insights that drive business decisions.

Embed

Easily convert large corpuses of free-form text into vector representations for semantic search and recommendations.

Label

Enrich your data with meaningful labels to improve model training and data preparation.

Common Use Cases

FAQ

What is Sutro?

Do I need to code to use Sutro?

How much can I save using Sutro?

How do I handle rate limits in Sutro?

Can I deploy Sutro within my VPC?

Are open-source LLMs good?

Is my data secure in Sutro?

Can I use custom models in Sutro?

How can I load data into Sutro?

How do I sign up for Sutro?

What is Sutro?

Do I need to code to use Sutro?

How much can I save using Sutro?

How do I handle rate limits in Sutro?

Can I deploy Sutro within my VPC?

Are open-source LLMs good?

Is my data secure in Sutro?

Can I use custom models in Sutro?

How can I load data into Sutro?

How do I sign up for Sutro?

What is Sutro?

Do I need to code to use Sutro?

How much can I save using Sutro?

How do I handle rate limits in Sutro?

Can I deploy Sutro within my VPC?

Are open-source LLMs good?

Is my data secure in Sutro?

Can I use custom models in Sutro?

How can I load data into Sutro?

How do I sign up for Sutro?

What Will You Scale with Sutro?