
Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.
Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.
ChatGPT records 6,048,022,723 monthly visits with +2.2% month-over-month growth and Freemium pricing. SkillKit records 5,350 monthly visits with +26.9% growth and Free pricing.

One skill format, deployed to 46 AI coding agents
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chatgpt.com | agenstskills.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 6.05B (6,048,022,723) | 5.35K (5,350) |
| MoM Traffic Delta | +127.43M (+2.2%) | +1.13K (+26.9%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🇺🇸 United States (54.2%) |
| Direct Visits / mo | 4.44B | 2.15K |
| User Rating | 4.8 | 4.4 |
| Supported Platforms | Website | Website |

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Automatically routes prompts or lets users select between Instant responses and Medium, High, or Extra High thinking depth across GPT-5.6 Luna, GPT-5.6 Sol, and flagship GPT-6 Pro/Astra models.
Asynchronous software engineering and task agents that clone repositories, run terminal tests in sandboxed environments, resolve complex bugs, and submit pull requests.
Browses dozens of primary web sources, academic papers, and connected workspace documents over several minutes to compile structured, citation-backed analytical reports.
Provides a split-screen editor for inline prose and code revisions alongside low-latency voice conversations with live screen and camera grounding.

One skill format, deployed to 46 AI coding agents
Write a skill once and translate it into the formats used by all 46 supported agents, including hooks, MCP tools and context conventions.
Search and browse hundreds of thousands of skills across 35+ aggregated registries and sources, organized into a hierarchical skill tree.
Generate skills from plain language using Claude, GPT-4, Gemini, Ollama or OpenRouter, and auto-generate optimized agent instructions from your codebase.
A 46-rule scanner flags prompt injection, secrets and malicious patterns, while a built-in test framework with assertions validates skills before deployment.

Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.
Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.
Offers superior long-form writing and coding assistance with interactive artifacts, but lacks built-in deep web search.
Offers superior long-form writing and coding assistance with interactive artifacts, but lacks built-in deep web search.
Free / Open-sourceDelivers exceptional open-weight reasoning and math performance at lower cost, but features a simpler consumer interface.
Free / Open-sourceDelivers exceptional open-weight reasoning and math performance at lower cost, but features a simpler consumer interface.

Integrates real-time social media data and image generation directly into chat, but has fewer enterprise integrations.
Integrates real-time social media data and image generation directly into chat, but has fewer enterprise integrations.

SpecialistThe AI workspace where teams and agents get work done together
SpecialistExcels at real-time web research with verifiable inline citations, but offers less robust general conversational coding features.
SpecialistExcels at real-time web research with verifiable inline citations, but offers less robust general conversational coding features.
Provides a completely free conversational assistant across social apps, but lacks advanced coding agents and deep research.
Provides a completely free conversational assistant across social apps, but lacks advanced coding agents and deep research.

The AI coding agent for building ambitious software
The AI coding agent for building ambitious software

SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.
SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.
Google's agent-first development platform for building and shipping software with AI agents
Google's agent-first development platform for building and shipping software with AI agents
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceRun and build with open AI models locally or in the cloud
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.