Alternatives · 2026
Best Second Alternatives in 2026
24 alternatives · 20 with a free plan · Updated
What are the best Second alternatives?
The best Second alternatives for AI Agent in 2026 are AIlice (open-source AI agent, free), SuperAGI (open-source platform for building, free) and Patched (open-source AI workflow automation framework for IT and developer…, free). 20 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Second? Below are 24 alternatives in AI Agent, AI Code Generator and AI Developer Tools, all closely matched, ranked by how much they overlap with Second. Second itself is free. Each entry shows what the tool does, what it shares with Second, its key features and pricing.
What is Second?
As AI code generators go, Second is built around migrations and upgrades rather than open-ended chat. Second is an AI developer bot that generates new web applications, adds full-stack features to existing ones, and automates codebase migrations, including dependency resolution, build system updates and test updates.
Second alternatives compared
| Tool | Pricing | Shared with Second | Match |
|---|---|---|---|
| Second | Free | — | Original |
| AIlice | Free | AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other | Strong match |
| SuperAGI | Free | AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other | Strong match |
| Patched | Free | AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other | Strong match |
| Agno | Free | AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other | Strong match |
| Reka | Enterprise | AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other | Strong match |
Top 24 alternatives to Second
- #1A
Open-source AI agent that runs tasks with open-source or commercial language models and lets you add custom modules.
In common with Second: AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Lightweight and easy to install
- Supports both open-source and commercial LLMs
- Highly extensible through self-constructed modules
Pricing: free, same as Second
- #2
Open-source platform for building, managing, and running autonomous AI agents, aimed at developers who want to customize them.
In common with Second: AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Open-source and dev-first approach
- Extensive features for building and managing AI agents
- Marketplace for tools and templates
Pricing: free, same as Second
- #3
Open-source AI workflow automation framework for IT and developer tasks like code reviews and vulnerability patching, self-hosted.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- These workflows can be self-hosted and integrated with preferred LLMs
Pricing: free, same as Second
- #4
Open-source AI agent framework for building lightweight, model-agnostic agents with memory, knowledge and tool integration.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Model agnostic
- Open-source and lightweight
- Fast and scalable
Pricing: free, same as Second
- #5
Reka builds multimodal AI models and agents that handle text, image, audio, and video for visual understanding and search.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Offers comprehensive multimodal AI solutions (text
- Provides agentic capabilities for deep understanding and search
- Key research components are open-sourced for transparency and community building
Pricing: enterprise (custom pricing), while Second is free
- #6
Open-source AI code assistant for VS Code that adds customizable chat and autocomplete using any model.
In common with Second: AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- It's a VS Code extension that brings the power of ChatGPT to your IDE
Pricing: free, same as Second
- #7G
Open-source large language model for coding, agentic tasks and long-context reasoning, with 745 billion parameters from Zhipu AI.
In common with Second: AI Agent, AI Code Generator, Large Language Models (LLMs), Open Source AI Models, Other
- B parameter AI model built for agentic intelligence and frontier-level reasoning
Pricing: free, same as Second
- #8
Qubinets is an open-source platform for deploying and managing AI and big data infrastructure on Kubernetes, with self-service cloud setup for developers and data teams.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Open-source platform simplifying AI and big data infrastructure deployment and management
Pricing: free, same as Second
- #9
Open-source AI gateway and developer portal for managing, integrating, and deploying LLM and API services with usage controls.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
Pricing: free, same as Second
- #10
Arize AI is an LLM observability and evaluation platform that traces and tests AI apps and agents from development through production.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- It provides tools for Generative AI
- ML & Computer Vision
- Arize AX helps accelerate AI app and agent development and perfect them in production
Pricing: free, same as Second
- #11
Workik AI is a development platform with an AI code generator, code review, and SQL query builder for teams writing software.
In common with Second: AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Other
- AI-powered development platform for code generation and team collaboration
Pricing: freemium (free plan + paid upgrades); Second is free
- #12
Morph is an AI code editing API that applies LLM-generated edits to source files quickly and merges complex code changes for coding agents.
In common with Second: AI Agent, AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Other
- Extremely fast code application (2000+ tokens/second)
- High accuracy in applying edits
- Cost-effective (10x cheaper than GPT-4o for applying edits)
Pricing: enterprise (custom pricing), while Second is free
- #13
Qdrant is an open-source vector database and similarity search engine, written in Rust, for AI applications that need fast semantic search.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Open-source and written in Rust for reliability and performance
- Scalable vector similarity search with a convenient API
- Integrates with various embeddings and frameworks
Pricing: enterprise (custom pricing), while Second is free
- #14
Mozilla.ai's Blueprint Hub is a central place for open-source AI workflow templates that help developers get a quick start.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Provides a centralized hub for open-source AI resources
- Offers pre-configured templates for quick start
- Supports collaboration and community feedback
Pricing: free, same as Second
- #15
AIxBlock is a decentralized AI development platform offering compute, models, and human validators for building and deploying AI models.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Decentralized AI development platform with compute
Pricing: free, same as Second
- #16
PremAI is a private AI platform for enterprises and consumers, with custom finetuned models, encrypted inference, and open-source RAG models.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- They offer open-source models like Prem-1B-SQL and Prem-1B Series for…
Pricing: enterprise (custom pricing), while Second is free
- #17
Open-source AI agent platform for building, customizing, and deploying chatbot agents, with a free plan that has no time limit.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Core Experience the core of OAK
- Powerful and free
Pricing: freemium (free plan + paid upgrades); Second is free
- #18
Open-source AI video generator framework where developers and agents build and edit videos with web technologies like HTML and JavaScript.
In common with Second: AI Agent, AI Developer Tools, Open Source AI Models, Other
- Open-source tool for composing videos using HTML
Pricing: free, same as Second
- #19
GitStart is an AI code generator and engineering capacity service that pairs LLMs with developers to turn tickets into merge-ready pull requests.
In common with Second: AI Agent, AI Code Generator, Large Language Models (LLMs), Other
Pricing: free, same as Second
- #20
Open-source, self-hosted AI automation framework for developers to build programmable AI workflows with messaging and model connections.
In common with Second: AI Agent, AI Developer Tools, Open Source AI Models, Other
- It enables the creation of programmable
Pricing: free, same as Second
- #21
A practical book with TypeScript example code for developers learning to build AI applications, covering LLMs, RAG, agents and prompt engineering.
In common with Second: AI Agent, AI Developer Tools, Large Language Models (LLMs), Other
- It's designed for absolute beginners
Pricing: free, same as Second
- #22
Hermes Agent is an open-source autonomous AI agent framework from Nous Research that runs on your own server, keeps persistent memory, and automates multi-step tasks.
In common with Second: AI Agent, AI Developer Tools, Open Source AI Models, Other
Pricing: free, same as Second
- #23
Open source AI pair programmer that helps edit code, suggests changes, and works with Git repositories across multiple programming languages.
In common with Second: AI Code Generator, AI Developer Tools, Large Language Models (LLMs), Open Source AI Models, Other
- Seamless collaboration with LLMs
- Supports multiple programming languages
- Integrates with Git for version control
Pricing: free, same as Second
- #24D
Devika AI is an open-source AI coding agent that plans tasks, researches the web, and generates code from plain-language instructions.
In common with Second: AI Agent, AI Code Generator, Large Language Models (LLMs), Other
- Open Source and Free
- Supports multiple language models (Claude 3
- GPT-4
Pricing: free, same as Second
How we picked these Second alternatives
We rank tools by how closely they match Second: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Second in 2026?
The closest alternatives to Second are AIlice, SuperAGI, Patched, Agno and Reka. They are ranked by how many categories and tags they share with Second and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Second?
AIlice is the closest match because it shares AI Agent, AI Code Generator and AI Developer Tools with Second. It is free.
Are there free alternatives to Second?
Yes. 20 of the 24 alternatives have a free or freemium plan, including AIlice (free), SuperAGI (free), Patched (free), Agno (free) and Continue (free). Second is free.
Which Second alternatives are paid or enterprise tools?
Reka (enterprise), Morph (enterprise), Qdrant (enterprise) and PremAI (enterprise) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Second compare to AIlice?
AIlice overlaps with Second in AI Agent, AI Code Generator and AI Developer Tools. Its listed features include lightweight and easy to install, supports both open-source and commercial LLMs and highly extensible through self-constructed modules. Pricing: free, same as Second. Open the side-by-side compare page for a full breakdown.
What category is Second in?
Second is listed under AI Agent on SoftwareVital. Browse that category to see more tools in the same group.