Kilo Code5.0 out of 5 stars |
OpenSpecFission AI
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Related Products
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Kilo Code:
About
Kilo Code is a powerful open-source coding agent designed to help developers build, ship, and iterate faster across every stage of the software development workflow. It offers multiple modes—including Ask, Architect, Code, Debug, and Orchestrator—so developers can switch seamlessly between tasks with tailored AI support. The platform includes features such as hallucination-free code, automatic failure recovery, and deep context awareness to ensure accuracy and reliability. Developers can run parallel agents, enjoy fast autocomplete, and even deploy applications with a single click. With access to 500+ models and integration across terminals, VS Code, and JetBrains editors, Kilo provides unmatched flexibility. As the #1 agent on OpenRouter with over 750,000 users, it has quickly become a preferred choice for modern AI-assisted development.
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OpenSpec:
About
OpenSpec is an open-source spec-driven development framework designed to bring structure and clarity to AI-assisted coding workflows. It introduces a lightweight specification layer that helps teams define requirements before writing code. The platform organizes each change into structured artifacts such as proposals, specifications, designs, and task lists. It integrates with over 20 AI coding tools, allowing developers to use their preferred assistants while maintaining consistency. OpenSpec emphasizes an iterative and flexible approach rather than rigid development phases. Its command-based workflow enables users to propose, implement, and archive features efficiently. Overall, OpenSpec helps developers align with AI systems, reduce ambiguity, and produce more predictable and reliable outcomes.
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Kilo Code:
Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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OpenSpec:
Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Kilo Code:
Audience
Kilo Code is ideal for developers and engineering teams seeking a fast, accurate, open-source AI coding agent that enhances every stage of the software development lifecycle.
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OpenSpec:
Audience
Developers, product teams, and organizations using AI coding assistants who want a structured, spec-driven approach to improve clarity, collaboration, and development outcomes
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Kilo Code:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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OpenSpec:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Kilo Code:
API
Offers API
Not Supported
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OpenSpec:
API
Offers API
Not Supported
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Kilo Code:
Screenshots and Videos |
OpenSpec:
Screenshots and Videos |
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Kilo Code:
Pricing
$15/user/month
Free Version
Supported
Free Trial
Not Supported
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OpenSpec:
Pricing
Free
Open source
Free Version
Supported
Free Trial
Not Supported
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Kilo Code:
Reviews/
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OpenSpec:
Reviews/
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Kilo Code:
Pros & Cons from Real UsersPros
Cons
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Kilo Code:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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OpenSpec:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Kilo Code:
Company InformationKilo Code
Founded: 2025
United States
kilo.ai/
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OpenSpec:
Company InformationFission AI
openspec.dev/
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Kilo Code:
Alternatives |
OpenSpec:
Alternatives |
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OpenSpec:
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OpenSpec:
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OpenSpec:
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Kilo Code:
Categories |
OpenSpec:
Categories |
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Kilo Code:
Integrations
Auggie CLI
Not Supported
Cline
Not Supported
Cloudroom
Supported
Codebuddy
Not Supported
Devstral Small 2
Supported
GLM-4.7
Supported
GLM-5
Supported
GLM-5.3
Supported
Grok Code Fast 1
Supported
Kilo Code Reviewer
Supported
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OpenSpec:
Integrations
Auggie CLI
Supported
Cline
Supported
Cloudroom
Not Supported
Codebuddy
Supported
Devstral Small 2
Not Supported
GLM-4.7
Not Supported
GLM-5
Not Supported
GLM-5.3
Not Supported
Grok Code Fast 1
Not Supported
Kilo Code Reviewer
Not Supported
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Kilo Code:
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OpenSpec:
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