
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. CortexPrism records 263 monthly visits with -87.6% growth and Free pricing.
Open-source, self-hosted operating system for autonomous AI agents
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chatgpt.com | cortexprism.io |
| Pricing Model | Freemium | Free |
| Monthly Visits | 6.05B (6,048,022,723) | 263 (263) |
| MoM Traffic Delta | +127.43M (+2.2%) |
| -1.85K (-87.6%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🇺🇸 United States (100%) |
|---|
| Direct Visits / mo | 4.44B | 78 |
|---|
| User Rating | 4.8 | 4.2 |
|---|
| 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.
Open-source, self-hosted operating system for autonomous AI agents
Run agents against multiple model vendors and swap or route between them without rewriting your agent logic.
Give agents working memory and long-term recall so context survives across sessions instead of resetting each run.
Register your own APIs, scripts and data sources as callable tools that autonomous agents can chain together.
Deploy the whole stack inside your own network or VPS, keeping prompts, memory and tool traffic under your control.

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.
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.

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.
Provides a completely free conversational assistant across social apps, but lacks advanced coding agents and deep research.

SpecialistThe 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.
Free / Open-sourceBrowser agents and stealth cloud browsers for real web tasks
Your always-on AI teammate, hosted and managed for you

Free / Open-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.
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.
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.
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.
SpecialistThe 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.
Free / Open-sourceBrowser agents and stealth cloud browsers for real web tasks
Your always-on AI teammate, hosted and managed for you
Free / Open-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.