Your AI that gets
smarter with use

Stack 2.9 is an open-source AI that learns, adapts, and improves itself over time. Built on Qwen2.5-Coder-32B, but transformed into something new.

stack_2.9

Why Stack 2.9?

Built for developers who want an AI that grows with them

🧠

Pattern Learning

Learns from every conversation and task. Improves its own capabilities through experience. Gets smarter the more you use it.

📚

Codebase-Aware

Deep understanding of your entire project. Extracts patterns and applies learned knowledge to solve new problems.

🔧

37 Built-in Tools

Coding, debugging, file operations, search, API calls, system commands, and more. Natural language commands.

🚀

Deploy Anywhere

Self-host with Docker, run locally, or use cloud. Your data stays yours. Complete control over your AI.

💾

Persistent Memory

Remembers past conversations and learned patterns. Builds long-term knowledge across sessions.

🤝

Multi-Agent

Collaborate with multiple agents. Delegate tasks, share context, work together on complex problems.

Performance

Competitive results on standard coding benchmarks

TBD
HumanEval
TBD
MBPP
TBD
Tool Use
Evolves
Self-Improvement
View Full Benchmarks

Try It Live

Experience Stack 2.9 in action

Stack 2.9 Interactive
🤖 Stack 2.9 ready! Type a command...
>

Try these commands:

How Pattern Learning Works

1

Observe

Watches its own problem-solving process

2

Learn

Extracts patterns from successes

3

Remember

Stores knowledge in persistent memory

4

Apply

Uses wisdom in future tasks

5

Improve

Gradually becomes smarter

Frequently Asked Questions

What's the difference between Stack 2.9 and other AI assistants?

Stack 2.9 learns from every interaction. While other assistants reset between sessions, Stack 2.9 remembers, evolves, and gets better over time.

How does self-evolution work?

Stack 2.9 observes its problem-solving process, extracts patterns from successful solutions, stores learned knowledge in persistent memory, and applies that knowledge to future tasks.

Can I self-host Stack 2.9?

Absolutely! Stack 2.9 is designed for self-hosting. Deploy with Docker, run locally, or integrate into your own infrastructure. Your data stays yours.

What tools are available?

37 built-in tools including file operations, code execution, search, API calls, git operations, terminal commands, and more. All accessible via natural language.

Is it free to use?

Yes! Stack 2.9 is open-source under Apache 2.0 license. You can use, modify, and distribute it freely.

What hardware do I need?

Stack 2.9 runs on consumer hardware. A machine with 16GB+ RAM can handle the 32B model. GPU acceleration recommended for best performance.