LLM SDK

AI SDK for building AI Agents with any LLM

EmergingOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Stable

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is LLM SDK?

The @yourgpt/llm-sdk is an AI Software Development Kit that allows developers to build intelligent agents using any language model. It simplifies the integration of AI capabilities into applications, making it easier to create sophisticated and context-aware software.

Key differentiator

The @yourgpt/llm-sdk stands out by offering unparalleled flexibility in integrating any language model into AI agents, making it ideal for developers who need customization and control over their AI integrations.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Supports integration with any LLMmedium

Simplifies AI agent developmentmedium

Open-source and MIT licensedmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited performance optimizations for large-scale applicationshigh

Documentation lacks guidance on scaling and performance tuning

Small community support, leading to limited troubleshooting resourcesmedium

GitHub issues have low engagement from maintainers and contributors

Fit analysis

Who is it for?

✓ Best for

Developers who need flexibility to integrate any LLM into their projects

Teams working on AI-driven applications that require customization and control over the language model used

✕ Not a fit for

Projects requiring real-time streaming capabilities (batch-only architecture)

Budget-constrained projects where cost is a significant factor, as it requires self-hosting

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with LLM SDK

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →