
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. StreamDocs.ai (PDF.co) records 0 monthly visits with 0% growth and Freemium, Free Trial, Paid pricing.
Low-code REST API for PDF extraction, conversion, editing and AI invoice parsing
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chatgpt.com | pdf.co |
| Pricing Model | Freemium | Freemium, Free Trial, Paid |
| Monthly Visits | 6.05B (6,048,022,723) | 0 (0) |
| MoM Traffic Delta |
| +127.43M (+2.2%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 4.44B | 0 |
|---|
| 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.
Low-code REST API for PDF extraction, conversion, editing and AI invoice parsing
Pull structured data out of PDFs, scans and invoices via REST endpoints, or let AI invoice parsing return standardised JSON without any template.
Convert PDFs to Excel, CSV, XML, JSON, HTML and images, and run OCR on scanned documents to make them searchable and machine-readable.
Merge, split, fill forms, add watermarks, barcodes and stamps, and generate new PDFs programmatically from HTML or templates.
Official connectors for Zapier and Make expose the same API to no-code users, so document workflows can be automated without server-side code.

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-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.
Chat with any PDF and get cited answers instantly

Free / Open-sourceEvery AI conversation, one open-source workspace

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-sourceEnables self-hosted, open-source management of local or cloud LLMs, but requires technical setup and maintenance.