The agent behind your best model

The agent behind your best model

Adaptive Inference that continuously improves at runtime

Get Started

IMPROVE STATE OF THE ART OPEN SOURCE MODELS

Qwen

Specializes in coding, multilingual tasks, and complex reasoning across languages

Try Qwen

DeepSeek

Best for structured reasoning, code generation, and precise analytical tasks

Try DeepSeek

Llama 3

Strong at general reasoning, summarization, and conversational chat at speed.

Try Llama 3

INTRODUCING ADAPTIVE INFERENCE

Inference any open-source model and watch the Pioneer agent improve your model agentically

Pioneer automatically retrains baseline OSS models on live inference data, improving accuracy over time

START BY SELECTING AN OPEN SOURCE MODEL

GLiNER

Extraction

Classification

Tool Calling

Small model for agent text processing and LLM model routing.

Try GLiNER

Qwen

Coding

Reasoning

Multilingual

Ideal for global products and complex reasoning chains.

Try Qwen

Llama 3

RAG

Summarization

Chat

Meta's best open-source model for general-purpose tasks.

Try Llama 3

DeepSeek

Agents

Coding

Planning

One of the most capable open-source models for code and reasoning

Capable model for code and reasoning

Try DeepSeek

START BY SELECTING AN OPEN SOURCE MODEL

GLiNER

Extraction

Classification

Structured data

The go-to model for processing unstructured text for agents.

Try GLiNER

Qwen

Qwen Chat is an AI assistant for everyone, powered by the Qwen series models. 

Try Qwen

Coding

Reasoning

Multilingual

Llama 3

Meta's best open-source model for general-purpose tasks.

Try Llama 3

Reasoning

Summarization

Chat

DeepSeek

Specialized for entity extraction, classification, and structured data tasks.

Try DeepSeek

Extraction

Classification

Structured data

HOW IT WORKS

With adaptive Inference, Pioneer continuously evaluates, fine-tunes, and promotes checkpoints for you.

With Adaptive Inference, Pioneer continuously evaluates, fine-tunes, and promotes checkpoints for you.

Get Started

Select Your Baseline

Select an OSS model (Llama 3, GLiNER, Qwen)

Inference and Capture

Deploy to our high-performance inference. Pioneer serves traffic while monitoring for high-signal traces.

Continuously Evaluate and Train

Automatically evaluate model behavior and generate training data for fine tuning.

Promote Improvements

Deploy improved checkpoints and continuously optimize performance.

ONE SHOT FINE-TUNING

Pioneer agentic fine-tuning updates models in one prompt

Thomas Dohmke

CEO @ GitHub

Pioneer is making AI

accessible for a future with

1B developers

Pioneer is making AI more accessible for a future with 1B developers

2x

2x

Price efficiency

versus GPT-4o

Higher accuracy than OSS base models

Day 0

Day 0

Support for latest
open source models

Support for latest open source models

99.99%

99.99%

Production
API Uptime

Production API Uptime

1,100,000+

1,100,000+

Model downloads
monthly

BUILT ON SOTA RESEARCH

State-of-the-art Research

SOTA model research. Leading model research team building small models for coding, conversational AI, agentic systems, search, and multimodality.

Data agent. State-of-the-art data tooling that outperforms existing synthetic data tools on accuracy, diversity, and task-specific output.

Adapative Inference. State-of-the-art research in reinforcement learning from production feedback, advancing how models self-improve.

TEAM

Our Team

Fastino is an applied research lab working on the frontier of language model research. If you are excited by our mission, please get in touch.

Founding Team

Ash Lewis

@ash_csx

George Hurn-Maloney

@george_onx

Tom Lewis

Julia White

Urchade Zaratiana

@urchadeDS

Henrijs Princis

Kelton Zhang

Matt Thomas

Dhruv Atreja

@DhruvAtreja1

Henry Fawcett

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Need help?

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Contact Support

Fastino Inc. (“Fastino”) develops specialized AI models and provides APIs designed to support structured data extraction, classification, reasoning, and production AI workflows. Fastino is a technology company and does not provide legal, financial, compliance, or advisory services.Any outputs, predictions, classifications, or decisions generated through Fastino models are based on the configuration, data, and implementation provided by the customer. Fastino does not control, verify, or guarantee the accuracy, completeness, or suitability of model outputs for any specific purpose. By using this website or Fastino’s models and services, you acknowledge that all content and outputs are provided for informational and operational purposes only and agree to our Terms of Use and Privacy Policy.

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