How do their growth rates compare?

API2D has a month-over-month growth rate of -91.3%; ChatGPT has +2.2%.

How does pricing compare?

API2D: Paid. Pay-as-you-go in points (P); overall cost roughly 1.5x official provider pricing, with free cache hits and a minimum per-call charge. Recharge via WeChat, Alipay, Chinese bank cards or Stripe. Points expire 180 days after your last top-up. ChatGPT: Freemium. Free tier ($0) on GPT-5.6 Luna; ChatGPT Go at $8/mo; ChatGPT Plus at $20/mo; ChatGPT Pro tiers at $100/mo, $200/mo, and $500/mo (with matching monthly API credits); Business Standard at $20/user/mo billed annually ($25/mo monthly) and Business Premium at $100-$125/user/mo.

What are alternatives to API2D and ChatGPT?

Other tools in related categories include Google Gemini, Claude, DeepSeek, Grok, Notion.

Head-to-Head Benchmark

API2D vs ChatGPT

API2D records 214 monthly visits with -91.3% month-over-month growth and Paid pricing. ChatGPT records 6,048,022,723 monthly visits with +2.2% growth and Freemium pricing.

API2DPaid

Use top AI models like electricity — register, top up, paste your key

Monthly Visits

214

MoM Velocity

-91.3%

Top Market

🇹🇼 Taiwan

View API2D Analysis

api2d.com

ChatGPTFreemiumTraffic Leader

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

Monthly Visits

6.05B

MoM Velocity

+2.2%

Top Market

🇺🇸 United States

View ChatGPT Analysis chatgpt.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	API2D	ChatGPT
Official Domain	api2d.com	chatgpt.com
Pricing Model	Paid	Freemium
Monthly Visits	214 (214)	6.05B (6,048,022,723)
MoM Traffic Delta

Primary Market & Share	🇹🇼 Taiwan (100%)	🇺🇸 United States (21.7%)

Direct Visits / mo	86	4.44B

User Rating	3.8	4.8

Supported Platforms	Website	Website

API2D

Use top AI models like electricity — register, top up, paste your key

OpenAI-compatible endpoint

One base URL and key work with virtually any app, SDK or self-hosted chat client that supports a custom API address.

Multi-provider model access

Route requests to OpenAI models, Claude, Stability diffusion, Azure TTS and vector database services from a single account.

Points-based billing

Consumption is metered in points with a published multiplier, so you pay for what you use rather than a flat subscription.

Free response caching

Identical request bodies return cached answers for free for 24 hours, and a header can disable caching when freshness matters.

Strengths & Pros

+Works with the large ecosystem of OpenAI-compatible tools out of the box
+Point-based billing means low commitment and granular cost control
+Response caching can make repeated queries effectively free
+Built-in enhancements (search, knowledge base, drawing) go beyond a plain relay
+Local payment methods plus credit card support

Frequently Asked Questions: API2D vs ChatGPT

API2D has 214 monthly visits, while ChatGPT has 6,048,022,723. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

API2D vs Google Gemini

2.64B visits/mo

ChatGPT vs Google Gemini

Best Alternatives to API2D & ChatGPT (12)

Limitations

–Cost runs above direct provider pricing once the multiplier applies
–Points expire 180 days after the last top-up, so balances need periodic renewal
–No monthly plan — heavy users must estimate spend from token usage
–Pricing calculation is complex because of minimum charges and bandwidth fees

ChatGPT

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

GPT-6 Astra & GPT-5.6 Adaptive Reasoning

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.

ChatGPT Work & Cloud Codex Agents

Asynchronous software engineering and task agents that clone repositories, run terminal tests in sandboxed environments, resolve complex bugs, and submit pull requests.

Autonomous Deep Research

Browses dozens of primary web sources, academic papers, and connected workspace documents over several minutes to compile structured, citation-backed analytical reports.

Interactive Canvas & Multimodal Voice

Provides a split-screen editor for inline prose and code revisions alongside low-latency voice conversations with live screen and camera grounding.

Strengths & Pros

+Full monthly fee rebated as usable OpenAI API credits across all three Pro tiers ($100, $200, and $500/mo)
+Removes the 5-hour rolling usage cap in ChatGPT Work and Codex on Pro plans for uninterrupted agentic coding
+Budget-friendly $8/mo ChatGPT Go plan makes expanded memory and higher daily message caps accessible below Plus

+Industry-leading multimodal ecosystem combining Deep Research, Canvas, Advanced Voice, and native image generation

Limitations

–Plus ($20/mo) enforces 5-hour rolling message caps in Work and Codex and excludes GPT-6 Pro in standard chat
–A five-tier consumer pricing ladder (Free, Go, Plus, and three separate Pro tiers) makes choosing the right allowance confusing
–Instant context window on lower tiers (54K on Plus vs 128K on Pro) is smaller than Google Gemini's 1M-token standard window

01

Google Gemini

2.6B/mo

Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.

AI ChatbotFreemium62% direct

Google Gemini web interface powered by Gemini 4 Carbon and Argon

02

Claude

1.3B/mo

Offers superior long-form writing and coding assistance with interactive artifacts, but lacks built-in deep web search.

AI AssistantFreemium+23.8%

#2

03

DeepSeek

372.8M/mo

Free / Open-sourceDelivers exceptional open-weight reasoning and math performance at lower cost, but features a simpler consumer interface.

Large Language Models (LLMs)Freemium+4.3%

#3

04

Grok

203.8M/mo

Integrates real-time social media data and image generation directly into chat, but has fewer enterprise integrations.

AI AssistantFreemium66% direct

05

Notion

173.4M/mo

SpecialistThe AI workspace where teams and agents get work done together

AI AgentFreemium78% direct

Notion interface showing an AI workspace with docs, databases, and agent workflows

06

Perplexity

88.3M/mo

SpecialistExcels at real-time web research with verifiable inline citations, but offers less robust general conversational coding features.

AI Search EngineFreemium72% direct

07

Meta AI

43.9M/mo

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

AI AssistantFree+27.7%

Meta AI research report view showing organized findings with citations

08

Cursor

23.3M/mo

SpecialistThe AI coding agent for building ambitious software

AI Code AssistantFreemium+8.4%

09

OpenRouter

19.9M/mo

Free / Open-sourceOne API key for hundreds of AI models from every major provider

AI APIPaid60% direct

OpenRouter dashboard showing model rankings, token usage, and spend analytics

10

Kimi AI

19.6M/mo

SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.

AI ChatbotFree71% direct

Kimi AI chat workspace showing plugins, scheduled tasks, and research options

11

OrcaRouter

975.3K/mo

Free / Open-sourceOne OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control

AI APIFreemium26% direct

OrcaRouter dashboard showing adaptive routing, model list, and per-prompt cost receipts

12

Open WebUI

804.5K/mo

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

Large Language Models (LLMs)Freemium37% direct

Screenshot of the Open WebUI chat workspace with model selector and sidebar of prompts and tools

#1

Visit

Google Gemini

2.6B/mo

Official

Provides massive context windows and deep Google Workspace integration, but trails behind in advanced coding workflows.

AI Chatbot62% direct

Freemium

Visit

Claude

1.3B/mo+23.8%

Official

Offers superior long-form writing and coding assistance with interactive artifacts, but lacks built-in deep web search.

AI Assistant72% direct

Freemium

Visit

DeepSeek

372.8M/mo+4.3%

Official

Free / Open-sourceDelivers exceptional open-weight reasoning and math performance at lower cost, but features a simpler consumer interface.

Large Language Models (LLMs)78% direct

Freemium

Visit

Grok

203.8M/mo

Official

Integrates real-time social media data and image generation directly into chat, but has fewer enterprise integrations.

AI Assistant66% direct

Freemium

Visit

Notion

173.4M/mo

Official

SpecialistThe AI workspace where teams and agents get work done together

AI Agent78% direct

Freemium

Visit

Perplexity

88.3M/mo

Official

SpecialistExcels at real-time web research with verifiable inline citations, but offers less robust general conversational coding features.

AI Search Engine72% direct

Freemium

Visit

Meta AI

43.9M/mo+27.7%

Official

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

AI Assistant45% direct

Free

Visit

Cursor

23.3M/mo+8.4%

SpecialistThe AI coding agent for building ambitious software

AI Code Assistant63% direct

Freemium

Visit

OpenRouter

19.9M/mo

Official

Free / Open-sourceOne API key for hundreds of AI models from every major provider

AI API60% direct

Paid

Visit

Kimi AI

19.6M/mo

Official

SpecialistSpecializes in processing exceptionally long documents for deep research, but lacks multi-modal voice and advanced code execution.

AI Chatbot71% direct

Free

Visit

OrcaRouter

975.3K/mo

Free / Open-sourceOne OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control

AI API26% direct

Freemium

Visit

Open WebUI

804.5K/mo

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

Large Language Models (LLMs)37% direct

Freemium

API2D vs ChatGPT

Side-by-Side Traffic & Specification Matrix

API2D

Strengths & Pros

Frequently Asked Questions: API2D vs ChatGPT

How do API2D and ChatGPT compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to API2D and ChatGPT?

More Head-to-Head Matchups

Best Alternatives to API2D & ChatGPT (12)

Limitations

ChatGPT

Strengths & Pros

Limitations