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With AI, Everyone is a Dev. EveryDev.ai © 2026
    1. Home
    2. Developers
    3. Solo Systems

    Solo Systems

    Solo Systems builds intelligent software agents that work alongside you in the terminal, in the background, and across your infrastructure, focusing on the harness level of intelligence.

    Visit Website

    At a Glance

    1Tool Listed
    4Products
    7Capabilities
    Discussions
    San Francisco, CAHeadquarters
    2025Est.
    1Employee
    $500000Raised
    Focus Areas
    AI Coding Assistants
    Agent Harness
    Multi-agent Systems
    Connect
    Latest News
    v0.61.1 released: Smooth input line while turns streamJul 28, 2026
    v0.61.0 released: Remote sessions and destructive-command gateJul 27, 2026
    Markets
    • Software developers
    • Security teams
    • Power users

    AI Tools by Solo Systems

    (1)
    View jcode
    jcode tool icon

    jcode

    Open Source Terminal Coding Agent

    AI Coding Asst.Agent HarnessMulti-agent Systems

    Discussions

    No discussions yet

    Be the first to start a discussion about Solo Systems

    Latest News

    07/28/2026

    v0.61.1 released: Smooth input line while turns stream

    solosystems.dev
    07/27/2026

    v0.61.0 released: Remote sessions and destructive-command gate

    solosystems.dev
    07/26/2026

    v0.60.0 released: Discovery repair and desktop preview polish

    solosystems.dev
    07/25/2026

    v0.58.0 released: Max-effort reasoning streams and model context limits

    solosystems.dev

    Products & Services

    4
    jcode
    2026-02-12

    An open-source terminal AI coding agent written in Rust. Features a rich TUI, swarm coordination, and semantic vector memory.

    System 0

    An always-on personal agent that runs in the background of your digital life (Coming soon).

    System P

    An autonomous penetration tester for continuous security validation (Coming soon).

    Discovery Tool Platform

    A platform that makes tools discoverable to agents at the moment of need (Coming soon).

    Market Position

    Claims significant performance and resource efficiency advantages over competitors like Claude Code, Cursor, and Aider, with a focus on 'harness-level' capabilities.

    Leadership

    Founders

    JH

    Jeremy Huang

    Solo founder and developer, 21 years old. Previously a bioengineering Ph.D. candidate at Harvard (graduated 2021). Top 500 on Monkeytype. Known for writing fast Rust tools (1jehuang on GitHub).

    Executive Team

    JH

    Jeremy Huang

    Founder & CEO

    Solo founder and developer of Solo Systems and jcode.

    Founding Story

    Founded by Jeremy Huang to push the frontier of AI intelligence by optimizing the agent harness around models, focusing on speed, memory, and persistence.

    Business Model

    Revenue Model

    Subscription-based model for hosted model usage (tokens) within the jcode harness. The software itself is free and open source.

    Pricing Tiers

    Free
    $0

    Bring your own API keys, local models via Ollama/LM Studio, open source MIT licensed

    Plus
    $10/month

    $18 of hosted model usage, zero setup, automatic failover

    Pro
    $20/month

    $40 of hosted model usage, zero setup, automatic failover

    Max
    $100/month

    $225 of hosted model usage, higher limits for sustained workloads

    Ultra
    $200/month

    $500 of hosted model usage, access to Ultra-tier models like Fable 5

    Solo
    $1000/month

    $3,000 of hosted model usage, priority routing, highest limits

    Private

    Target Markets

    Industries & Segments
    • Software developers
    • Security teams
    • Power users
    Use Cases
    • Terminal-based software development
    • Autonomous personal assistance
    • Continuous security validation (pen-testing)
    • Multi-agent workflow orchestration

    Quick Facts

    Headquarters
    San Francisco, CA
    Founded
    2025
    Entity Type
    Inc.
    Employees
    1
    Total Funding
    $500,000
    Investors
    Y Combinator
    Office Locations
    San Francisco

    Funding History

    Seed (YC S26)$500,000
    2026-05
    Y Combinator

    History & Milestones

    2026-02-12

    v0.1 of jcode released

    2026-04-30

    v0.11 of jcode released

    2026-06-28

    v0.32 of jcode released

    2026-07-29

    v0.61.2 of jcode released (most recent)

    2026-05

    Accepted into Y Combinator Summer 2026 (S26) batch

    Key Capabilities

    7
    Intelligent agent harness
    Swarm coordination
    Auto-poke persistence
    Semantic vector memory
    Rich TUI rendering (images, math, etc.)
    Self-dev mode (agent modifies its own source)

    Integrations & Partnerships

    Platform Integrations

    • Claude
    • OpenAI
    • AWS Bedrock
    • Ollama
    • LM Studio

    Key Partnerships

    Y Combinator

    Connect

    Website
    solosystems.dev/
    GitHub
    1jehuang
    X / Twitter
    1jehuang
    Discord
    nBe9vGyK9a

    AI Topics

    3

    Solo Systems focuses on these topics:

    AI Coding Assistants(1)
    Agent Harness(1)
    Multi-agent Systems(1)
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