How do their growth rates compare?

API2D has a month-over-month growth rate of -91.3%; OpenAI Platform has -9.6%.

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. OpenAI Platform: Paid. Usage-based pay-per-token API billing: GPT-6 Astra at $10/1M input and $50/1M output tokens; GPT-6.1 Sol at $2/1M input and $10/1M output; GPT-6.1 Terra at $1/1M input and $5/1M output; GPT-6 Luna at $0.10/1M input and $0.50/1M output; GPT-Live-1 voice at $0.05/minute; 90% discount on cached inputs and 50% off via Batch API.

What are alternatives to API2D and OpenAI Platform?

Other tools in related categories include Google AI Studio, Qwen 4 (Alibaba Qwen4), OpenRouter, BigModel, fal.ai.

Head-to-Head Benchmark

API2D vs OpenAI Platform

API2D records 214 monthly visits with -91.3% month-over-month growth and Paid pricing. OpenAI Platform records 234,678,639 monthly visits with -9.6% growth and Paid 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

OpenAI PlatformPaidTraffic Leader

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.

Monthly Visits

234.68M

MoM Velocity

-9.6%

Top Market

🇺🇸 United States

View OpenAI Platform Analysis openai.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	API2D	OpenAI Platform
Official Domain	api2d.com	openai.com
Pricing Model	Paid	Paid
Monthly Visits	214 (214)	234.68M (234,678,639)
MoM Traffic Delta

Primary Market & Share	🇹🇼 Taiwan (100%)	🇺🇸 United States (25.4%)

Direct Visits / mo	86	105.1M

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 OpenAI Platform

API2D has 214 monthly visits, while OpenAI Platform has 234,678,639. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

API2D vs Google AI Studio

112.62M visits/mo

Google AI Studio vs OpenAI Platform

347.3M visits/mo

API2D vs Qwen 4 (Alibaba Qwen4)

35.1M visits/mo

OpenAI Platform vs Qwen 4 (Alibaba Qwen4)

269.78M visits/mo

API2D vs OpenRouter

19.94M visits/mo

OpenAI Platform vs OpenRouter

254.62M visits/mo

Best Alternatives to API2D & OpenAI Platform (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

OpenAI Platform

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.

GPT-6 & GPT-6.1 Model Lineup with 1.05M Context

Spanning GPT-6 Astra ($10/$50 per MTok), GPT-6.1 Sol ($2/$10), GPT-6.1 Terra ($1/$5), and GPT-6 Luna ($0.10/$0.50), all with a 1,050,000-token context window and 128K max output.

Configurable Reasoning Effort Controls

Tune thinking token budgets per API request across six granularity levels (`none`, `low`, `medium`, `high`, `xhigh`, `max`) to balance latency, accuracy, and cost.

Responses API & Native Computer Use Tools

Combine model inference with hosted web search, file search, function calling, and autonomous GUI computer-use actions in a single stateful API call.

GPT-Live-1 Realtime Voice API

Build ultra-low-latency multimodal voice agents billed per second ($0.05/minute) without rounding up to whole minutes.

Strengths & Pros

+100-fold cost flexibility from GPT-6 Luna ($0.10/$0.50 per 1M tokens) up to frontier GPT-6 Astra ($10/$50 per 1M tokens)
+Unified 1.05M-token context window and 128K output limit across the entire flagship GPT-6 and GPT-6.1 family
+90% discount on cached input tokens and 50% Batch API discount dramatically reduce production inference bills

+

Industry-standard SDKs, Structured Outputs, and built-in Responses API tools minimize boilerplate agent code

Limitations

–Long-context requests exceeding the standard window threshold trigger roughly 2x higher per-token billing rates
–Flagship GPT-6 Astra ($10 input / $50 output per 1M tokens) is significantly more expensive than Claude Opus 5.5 ($4/$20) and Grok 4.7 ($2/$6)
–Regional data residency endpoints incur a 10% price uplift on models released after March 2026

01

Google AI Studio

112.6M/mo

Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.

AI Developer ToolsFreemium+2%

02

Qwen 4 (Alibaba Qwen4)

35.1M/mo

Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.

Large Language Models (LLMs)Freemium71% direct

Qwen 4 (qwen.ai / chat.qwen.ai) multimodal AI assistant interface

03

OpenRouter

19.9M/mo

Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.

AI APIPaid60% direct

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

#3

04

BigModel

5.7M/mo

Provides developer APIs for Zhipu AI's proprietary GLM models, serving as an alternative enterprise foundation model stack.

Large Language Models (LLMs)Freemium74% direct

BigModel developer console with API keys, model list, and usage dashboard

05

fal.ai

3.1M/mo

SpecialistOptimized for lightning-fast serverless execution of generative media and image models, rather than general text LLMs.

AI Developer ToolsPaid, pay-as-you-go usage-based pricing60% direct

fal.ai model catalog listing image, video, audio and 3D generative AI models

06

Together AI

1.6M/mo

Specializes in high-performance serverless inference and dedicated GPU clusters for open-source models, bypassing closed commercial restrictions.

AI Developer ToolsFreemium, Paid+64.9%

07

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

08

Replicate homepage with code sample and a catalog of generative AI models

Replicate AI

904K/mo

SpecialistFocuses heavily on running and fine-tuning open-source vision and language models via simple APIs, unlike OpenAI's hosted closed models.

AI APIPaid64% direct

09

Atlas Cloud

777K/mo

One OpenAI-compatible API for 500+ image, video, audio, and LLM models

AI APIPaid54% direct

Atlas Cloud pricing page listing per-second video, per-image, and per-token model rates

10

CometAPI

603K/mo

Free / Open-sourceOne OpenAI-compatible API key for 500+ AI models

AI Developer ToolsPay-as-you-go (credits)+49.7%

CometAPI developer dashboard showing spend, latency and API call volume analytics across models

11

LiteLLM

577K/mo

Free / Open-sourceOne open-source AI gateway for 100+ LLM providers

AI APIFreemium, Contact for Pricing+7.9%

LiteLLM dashboard showing virtual keys, spend budgets and model health

12

DeepInfra

457.8K/mo

SpecialistDelivers ultra-low-cost serverless inference for open-weight models, though with fewer enterprise orchestration tools than OpenAI.

AI ModelsPaid52% direct

Screenshot of the DeepInfra dashboard listing available models with input and output token prices

#1

Visit

Google AI Studio

112.6M/mo+2%

Official

Provides direct API access to Google's Gemini models with generous free prototyping tiers, but lacks OpenAI's ecosystem breadth.

AI Developer Tools54% direct

Freemium

#2

Visit

Qwen 4 (Alibaba Qwen4)

35.1M/mo

Official

Free / Open-sourceAlibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.

Large Language Models (LLMs)71% direct

Freemium

Visit

OpenRouter

19.9M/mo

Official

Unifies hundreds of third-party models under a single API key, offering greater model choice than OpenAI's curated catalog.

AI API60% direct

Paid

Visit

BigModel

5.7M/mo