--- title: "agentsys vs duet-gpt" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/agent-sh-agentsys-vs-kristoferlund-duet-gpt" tools: ["agent-sh-agentsys", "kristoferlund-duet-gpt"] --- # agentsys vs duet-gpt *GraphCanon updated Aug 14, 2026* ## Verdict Pick agentsys if agentsys supports automation through AI agents that handle various coding environments with plugins and skills; pick duet-gpt if duetGPT empowers developers through conversational support for coding and system tasks. [agentsys](https://agent-sh.github.io/agentsys/) reports 962 GitHub stars, 111 forks, and 0 open issues, last pushed Jul 26, 2026. [duet-gpt](https://github.com/kristoferlund/duet-gpt) has 168 stars, 13 forks, and 1 open issues, last pushed Jun 19, 2023. Figures are from public GitHub metadata via [agentsys's repository](https://github.com/agent-sh/agentsys) and [duet-gpt's repository](https://github.com/kristoferlund/duet-gpt). | | [agentsys](/tools/agent-sh-agentsys.md) | [duet-gpt](/tools/kristoferlund-duet-gpt.md) | | --- | --- | --- | | Tagline | AI writes code to automate workflows and tasks | A conversational semi-autonomous developer assistant. | | Stars | 962 | 168 | | Forks | 111 | 13 | | Open issues | 0 | 1 | | Language | JavaScript | TypeScript | | Adopt for | agentsys supports automation through AI agents that handle various coding environments with plugins and skills. | DuetGPT empowers developers through conversational support for coding and system tasks. | | Persona | - | - | | Runtime | - | - | | License | MIT | MIT License provides flexibility for free use and modification. | | Categories | AI Agents, Developer Tools | AI Agents, Developer Tools | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [agentsys](/tools/agent-sh-agentsys.md) | [duet-gpt](/tools/kristoferlund-duet-gpt.md) | | --- | --- | --- | | Maintenance | Active (82%) | Dormant (18%) | | Days since push | 16d | 1152d | | Open issues (now) | 0 | 1 | | Stars delta | Unknown | +1 (30d) | | Open issues delta | Unknown | 0 (30d) | | Owner type | Organization | User | | Full report | [trust report](/tools/agent-sh-agentsys/trust.md) | [trust report](/tools/kristoferlund-duet-gpt/trust.md) | ## Shared compatibility - **Node.js**: [agentsys](/tools/agent-sh-agentsys.md) - Node.js runtime; [duet-gpt](/tools/kristoferlund-duet-gpt.md) - Node.js runtime ## Decision facts: agentsys - **Pricing:** freemium - MIT licensed tool offers open access for free but may include premium plugins or skills. - **Requirements:** Min 2 GB RAM; Requires modern JavaScript environment to run effectively.; Ensure internet connectivity due to reliance on plugins and skills that may require update downloads or external API access for certain functionalities. - **Adopt for:** agentsys supports automation through AI agents that handle various coding environments with plugins and skills. ## Decision facts: duet-gpt - **Pricing:** freemium - Free to use; however, users need their own OpenAI API keys with potential costs based on usage. - **Adopt for:** DuetGPT empowers developers through conversational support for coding and system tasks. - **License detail:** MIT License provides flexibility for free use and modification. ## Choose when ### Choose agentsys if… - agentsys is primarily JavaScript; duet-gpt is TypeScript. - Pricing: MIT licensed tool offers open access for free but may include premium plugins or skills.. - Requirements: Min 2 GB RAM; Requires modern JavaScript environment to run effectively.; Ensure internet connectivity due to reliance on plugins and skills that may require update downloads or external API access for certain functionalities.. - Tags unique to agentsys: automation, autonomous-agents, claude-code, codex. - Use when you need to automate complex workflows in JavaScript-heavy projects, as it integrates well with JavaScript environments like Claude Code. ### Choose duet-gpt if… - duet-gpt is primarily TypeScript; agentsys is JavaScript. - Pricing: Free to use; however, users need their own OpenAI API keys with potential costs based on usage.. - Tags unique to duet-gpt: assistant, cli, gpt, gpt-4. - You need assistance in generating or refactoring code, where DuetGPT uses the advanced capabilities of OpenAI's GPT-4 to suggest improvements or write new functions based on your specifications. ## When NOT to use agentsys - Avoid for teams not proficient in JavaScript or those preferring languages where agentsys does not provide comparable support. - Do not use if your project scope is better served by competitors with more specialized skill sets that align closely with niche requirements, as opposed to the general utility approach of agentsys. ## When NOT to use duet-gpt - For automated task executions where high reliability is imperative. DuetGPT may generate commands that require manual oversight before execution. - In situations requiring strict control over function calls, as it relies on the OpenAI API's function calling feature, which might not fully cover specific enterprise workflows. ## Common questions ### What is the difference between agentsys and duet-gpt? agentsys: AI writes code to automate workflows and tasks. duet-gpt: A conversational semi-autonomous developer assistant.. See the comparison table for live GitHub stats and shared categories. ### When should I choose agentsys over duet-gpt? Choose agentsys over duet-gpt when agentsys is primarily JavaScript; duet-gpt is TypeScript; Pricing: MIT licensed tool offers open access for free but may include premium plugins or skills.; Requirements: Min 2 GB RAM; Requires modern JavaScript environment to run effectively.; Ensure internet connectivity due to reliance on plugins and skills that may require update downloads or external API access for certain functionalities.; Tags unique to agentsys: automation, autonomous-agents, claude-code, codex; Use when you need to automate complex workflows in JavaScript-heavy projects, as it integrates well with JavaScript environments like Claude Code. ### When should I choose duet-gpt over agentsys? Choose duet-gpt over agentsys when duet-gpt is primarily TypeScript; agentsys is JavaScript; Pricing: Free to use; however, users need their own OpenAI API keys with potential costs based on usage.; Tags unique to duet-gpt: assistant, cli, gpt, gpt-4; You need assistance in generating or refactoring code, where DuetGPT uses the advanced capabilities of OpenAI's GPT-4 to suggest improvements or write new functions based on your specifications. ### When should I avoid agentsys? Avoid for teams not proficient in JavaScript or those preferring languages where agentsys does not provide comparable support. Do not use if your project scope is better served by competitors with more specialized skill sets that align closely with niche requirements, as opposed to the general utility approach of agentsys. ### When should I avoid duet-gpt? For automated task executions where high reliability is imperative. DuetGPT may generate commands that require manual oversight before execution. In situations requiring strict control over function calls, as it relies on the OpenAI API's function calling feature, which might not fully cover specific enterprise workflows. ### Is agentsys or duet-gpt more popular on GitHub? agentsys has more GitHub stars (962 vs 168). Stars measure visibility, not whether either tool fits your constraints. ### Are agentsys and duet-gpt open source? Yes - both are open-source projects on GitHub (agentsys: MIT, duet-gpt: MIT). ### Where can I find alternatives to agentsys or duet-gpt? GraphCanon lists graph-backed alternatives at [agentsys alternatives](/tools/agent-sh-agentsys/alternatives) and [duet-gpt alternatives](/tools/kristoferlund-duet-gpt/alternatives) ([agentsys markdown twin](/tools/agent-sh-agentsys/alternatives.md), [duet-gpt markdown twin](/tools/kristoferlund-duet-gpt/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/agent-sh-agentsys-vs-kristoferlund-duet-gpt.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, agentsys or duet-gpt? agentsys: Active. duet-gpt: Dormant. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for agentsys and duet-gpt? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [agentsys trust report](/tools/agent-sh-agentsys/trust); [duet-gpt trust report](/tools/kristoferlund-duet-gpt/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=agent-sh-agentsys`](/api/graphcanon/graph?tool=agent-sh-agentsys) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_