
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. Pi Coding Agent records 1,929,244 monthly visits with +4% growth and Free pricing.
A minimal, extensible terminal coding agent you can reshape
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chatgpt.com | pi.dev |
| Pricing Model | Freemium | Free |
| Monthly Visits | 6.05B (6,048,022,723) | 1.93M (1,929,244) |
| MoM Traffic Delta | +127.43M (+2.2%) | +74.89K (+4%) |
| Primary Market & Share | 🇺🇸 United States (21.7%) | 🇨🇳 China (33.4%) |
| Direct Visits / mo | 4.44B | 902.21K |
| User Rating | 4.8 | 4.6 |
| 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.
A minimal, extensible terminal coding agent you can reshape
Build commands, tools, keyboard shortcuts, overlays, sub-agents or permission gates as TypeScript extensions, or install them as packages from npm and git.
AGENTS.md instructions, per-project SYSTEM.md, on-demand skills, prompt templates and customizable compaction keep the context window under your control.
Connect 15+ providers from Anthropic and OpenAI to Bedrock, Groq, OpenRouter and local Ollama, then switch models mid-session.
Interactive TUI, print/JSON for scripting, an RPC protocol for non-Node hosts, and an SDK for embedding the agent.

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.

A dedicated AI-native code editor offering superior multi-file code generation, though it lacks terminal-native lightness.
A dedicated AI-native code editor offering superior multi-file code generation, though it lacks terminal-native lightness.

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.

Describe your idea and Replit builds a working app in minutes

Free / Open-sourceThe industry-standard source code editor with flexible plugin support, requiring extensions for advanced agentic coding.
Free / Open-sourceThe industry-standard source code editor with flexible plugin support, requiring extensions for advanced agentic coding.
An IDE plugin that reads entire codebases for multi-file tasks, trading terminal minimalism for integrated UI.
An IDE plugin that reads entire codebases for multi-file tasks, trading terminal minimalism for integrated UI.