ChatGPT records 6,048,022,723 monthly visits with +2.2% month-over-month growth and Freemium pricing. Mesa records 6,563 monthly visits with +48.4% growth and Freemium pricing.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
The versioned filesystem built for AI agents
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chatgpt.com | mesa.dev |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 6.05B (6,048,022,723) | 6.56K (6,563) |
| MoM Traffic Delta | +127.43M (+2.2%) | +2.14K (+48.4%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🇺🇸 United States (78.7%) |
| Direct Visits / mo | 4.44B | 2.57K |
| User Rating | 4.8 | 4.3 |
| 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.
The versioned filesystem built for AI agents
A 100% POSIX-compatible mount so agents and sandboxes use familiar Unix tools, with persistence, sync and version history handled transparently underneath.
Fork a workspace in milliseconds to run dozens of agents on isolated branches, then pick the best result without file locking.
Snapshot the entire filesystem at every step and restore any past state with a single API call when an agent goes off track.
Pause any agent for review, build approval queues and policy gates, then resume from the exact same workspace state.
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.
SpecialistThe AI coding agent for building ambitious software
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.
SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.
Give your AI agents secure, authenticated access to 1,700+ apps
Give your AI agents secure, authenticated access to 1,700+ apps
Free / Open-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.
Free / Open-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.
High-trust frontier inference, encrypted end to end
High-trust frontier inference, encrypted end to end
