
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. ProofUp records 0 monthly visits with -100% growth and Contact for Pricing pricing.

Verify income, identity, and documents before you hand over the keys
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chatgpt.com | proofup.com |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 6.05B (6,048,022,723) | 0 (0) |
| MoM Traffic Delta |
| +127.43M (+2.2%) |
| -1.73K (-100%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 4.44B | 0 |
|---|
| User Rating | 4.8 | 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.

Verify income, identity, and documents before you hand over the keys
Applicants connect bank and payroll accounts through Plaid so earnings are read from the account itself, with no document in the path to forge. Uploaded documents are also analyzed for deposit frequency and real income.
A government ID photographed front and back is matched against a live selfie using facial recognition, catching borrowed identities before keys are handed over.
Uploaded PDFs are read at the byte level for hidden text layers, metadata mismatches, generator fingerprints, and post-generation edits — evidence that visual inspection misses.
Each application returns one of five verdicts (pass, pass with caution, non-recurring, needs review, fail) with a risk level and the specific signals that produced it.

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
Free / Open-sourceAI detection and writing verification built for schools and editors

SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.
Free / Open-sourceDetect, humanize and verify AI content in one place

Enterprise AI and plagiarism detection for content integrity
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
Free / Open-sourceAI detection and writing verification built for schools and editors
SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.
Free / Open-sourceDetect, humanize and verify AI content in one place