Alternatives to TypeLLM

DiscuroAI chains GPT-3 prompt templates and DALL-E 2 image calls into multi-step workflows you run with one API request that returns JSON.

One strongly-typed C# .NET client for calling 15+ LLM providers through a unified TornadoApi.

OpenAI Scala Client: typed, effect-friendly JVM calls to OpenAI's chat, image, embedding and audio APIs

Open-source Java library that tokenizes text with OpenAI's BPE encodings so you can count, encode and decode locally

Guidance is a Python constrained generation library that steers LLMs with regex, context-free grammars, and inline control flow.

Outlines enforces structured generation by constraining LLM decoding so JSON, regex, and grammar output is valid at every token.

spaCy is the open-source Python NLP library for fast named entity recognition, dependency parsing and production text processing at scale.

Hugging Face Tokenizers: train BPE, WordPiece and Unigram vocabularies and tokenize a GB of text in under 20 seconds.

RubyLLM is a Ruby gem that puts chat, agents, tools, RAG, and multimodal calls behind one API across 19 providers.

OpenAI Cookbook: free, MIT-licensed notebooks and guides for calling the OpenAI API

Open-source Ruby gem that calls 11 LLM providers through one consistent interface for embeddings, completions, and chat.

Mellea delivers testable, validated LLM calls from type-annotated Python functions with token-level constrained decoding.

Go SDK for AI apps: one unified, type-safe API for text generation, streaming, tools and MCP across 25+ LLM providers.

Marvin turns LLM calls into typed Python functions for cast, classify, and extract.

SwiftOpenAI: an MIT-licensed Swift package for calling the OpenAI API with native async/await and Combine on Apple platforms.

Simplemma is a pure-Python multilingual lemmatizer that returns dictionary lemmas across 35 languages.

Drop-in AI autocomplete for any text input — two lines of code, OpenAI's GPT models underneath.

Django AI Assistant adds LLM chat, RAG, and Tool Calling into your existing Django app

Open-source wire protocol suite that standardizes LLM, vector, graph, and embedding calls so you swap providers in config, not code

AnyAPI A/B tests GPT-3 prompts and serves the winning variant as a live REST API endpoint you can call from your app.

Offline JavaScript NLP: POS tagging, named entity recognition, and verb conjugation with no API call.

Mirascope is an open-source Python library that turns LLM calls, tools, and prompt versioning into plain decorated functions.

Tiptap AI Toolkit lets your AI agent edit rich-text documents in place with schema-aware, reviewable patches.

Open-source TypeScript AI SDK for streaming AI apps and agents with multi-model support and built-in fallbacks

Attention Sinks keeps Llama, Mistral, MPT, Falcon and Pythia chat models fluent with constant VRAM via a one-line import swap.

Headroom builds custom AI software that reads your email, documents and calls and turns them into records your team runs on.

PrivateGPT is Zylon's open-source on-premise RAG framework for private document Q&A and API-driven GenAI apps.

OmniAI gives Ruby developers one unified client API for OpenAI, Anthropic, Google, Mistral, DeepSeek and Llama

Fabric turns reusable AI prompt patterns into chainable command-line workflows you can run, inspect, and version in your terminal.

LMQL is a programming language for LLMs that uses types, templates and constraints to make prompts modular and outputs reliable.