Best alternatives to Hexabot

Agenta

#1

Open-source LLMOps platform for prompt engineering and evaluation

Agenta is an open-source platform for building, versioning, and evaluating LLM applications with a focus on prompt engineering workflows. It provides a playground for testing prompts, A/B comparison, human evaluation tools, and deployment pipelines. Suited for AI engineers and product teams who need a structured approach to iterating on LLM-powered features.

AgentDock

#2

Open platform for building and deploying customizable AI agents

AgentDock is an open-source framework for building, configuring, and deploying AI agents with modular tool integrations. It supports connecting agents to APIs, databases, and custom logic nodes through a visual and code-first interface. Designed for developers who want full control over agent architecture and tool orchestration.

aider

#3

AI pair programmer that edits your codebase from the terminal

aider is an open-source command-line tool that lets developers pair-program with GPT-4, Claude, and other LLMs directly in their terminal. It reads repo context, applies multi-file edits, and commits changes with meaningful messages automatically. Best suited for developers who prefer a CLI-first, git-integrated AI coding workflow.

Bloom

#4

Open multilingual LLM trained by 1,000+ researchers worldwide

BLOOM is a 176-billion parameter open-access multilingual language model developed collaboratively by over 1,000 AI researchers through the BigScience project. It supports 46 natural languages and 13 programming languages, making it one of the most linguistically diverse LLMs available. BLOOM is freely available on Hugging Face and is designed for researchers and developers needing a transparent, open-source alternative to proprietary models.

Chatbot UI

#5

Open-source self-hostable ChatGPT interface with full customization

Chatbot UI is an open-source, self-hostable web interface for interacting with OpenAI's API, offering a clean ChatGPT-like experience with system prompt customization, model switching, and conversation management. Built by Mckay Wrigley, it is widely used by developers who want full control over their AI chat environment without relying on OpenAI's own interface.

Continue

#6

Open-source AI code assistant that plugs into your IDE

Continue is an open-source AI coding assistant that integrates directly into VS Code and JetBrains IDEs. It supports any LLM provider—OpenAI, Anthropic, local models—for inline completions, chat, and refactoring. Developers get full control over model choice and context, making it ideal for teams wanting flexible, self-hostable AI coding workflows.

Haystack

#7

Open-source framework for building LLM-powered search pipelines

Haystack is an open-source Python framework by deepset for building production-ready NLP applications, including RAG pipelines, semantic search, and question-answering systems. It supports a wide range of LLMs and document stores, giving ML engineers and developers the composable building blocks to ship robust AI applications.

Helicone AI

#8

Open-source LLM observability: log, monitor, and optimize AI calls

Helicone is an open-source observability platform that proxies LLM API calls to provide logging, cost tracking, latency metrics, prompt versioning, and caching. It integrates with a one-line code change and supports OpenAI, Anthropic, and Azure. Built for AI teams who need production-grade monitoring without heavy infrastructure.

Keploy

#9

Auto-generate API tests and mocks from real traffic recordings

Keploy is an open-source testing platform that automatically generates unit tests, integration tests, and data mocks by recording live API traffic from an application. It dramatically reduces the manual effort needed to write and maintain tests, helping backend engineering teams improve code coverage and catch regressions faster.