# API2D vs EvoLink AI Model API

API2D records 214 monthly visits with -91.3% month-over-month growth and Paid pricing. EvoLink AI Model API records 312,573 monthly visits with -27% growth and Free Trial, Paid, Contact for Pricing pricing.

| Metric | [API2D](https://openaitools.app/tool/api2d-com) | [EvoLink AI Model API](https://openaitools.app/tool/evolink-ai-model-api) |
| :--- | :--- | :--- |
| Website URL | https://www.api2d.com | https://evolink.ai |
| Categories | AI API, Large Language Models (LLMs), AI Developer Tools | AI API, AI Avatar Generator, AI Image Generator, Image to Image |
| Pricing Model | Paid | Free Trial, Paid, Contact for Pricing |
| Monthly Visits | 214 | 312,573 |
| MoM Growth Rate | -91.3% | -27% |
| Primary Market | Taiwan | China |
| Direct Visits | 86 | 112,422 |
| Review Score | 3.8 | 4.3 |
| Saved Count | 4 | 0 |
| Supported Platforms | Website | Website |

## API2D

API2D is a payment-and-routing layer that sits in front of the world's major language and image models. Instead of managing billing with each provider separately, you register an API2D account, top it up, copy the issued key and paste it into any client that supports a custom API base URL. Because the interface mirrors OpenAI's own specification, most existing tools, SDKs and self-hosted chat UIs work without code changes.

The platform bills in points (P) rather than a fixed monthly subscription, so cost tracks actual token consumption. According to API2D's own documentation, overall pricing is kept at roughly 1.5x the underlying provider's official rate, with a minimum per-request charge and free cached responses. Streamed GPT-4 replies are billed differently because they hold a connection open, and media-heavy endpoints add a modest bandwidth fee.

Beyond pure relay, API2D layers on value that a raw endpoint does not offer: response caching, retrieval-augmented search, drawing tools and an agent/reseller program that lets larger accounts create and price their own sub-keys. It is aimed at Chinese-speaking developers and enthusiasts who want frictionless, domestically payable access to frontier models. For anyone evaluating it, remember that API2D is an independent third party and not affiliated with OpenAI, Anthropic or the other model vendors.

**Pricing & Plans:** 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-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.
- **Reseller and grouping tools:** Larger accounts can batch-create keys, set default models and resell access through their own pricing pages.

**Strengths:** 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

**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

[Profile (Markdown)](https://openaitools.app/tool/api2d-com.md)

## EvoLink AI Model API

EvoLink positions itself as a platform layer rather than a price-cutting aggregator or a model showcase. Every supported model has a documented surface, so you can compare capabilities, output specs, and cost before integrating instead of discovering behavior after shipping. Families such as GPT, Claude, and Gemini sit alongside image, video, and audio models, and each model page lists the details that matter for production: resolution, duration, context length, and price per token, image, or second of video.

Reliability is handled at the routing layer. EvoLink advertises a 99.9% uptime target with automatic failover across providers, so if one vendor degrades, requests are sent to an alternative without code changes. The Smart Router selects the fastest, cheapest, or most reliable endpoint per request, with routing overhead typically under 50ms, and a dashboard tracks real-time usage and spend.

Integration is designed to be short: sign up for free credits without a credit card, generate one API key, then point your existing OpenAI, Anthropic, or Google-style client at EvoLink and keep most of your code. Pay-as-you-go billing means no monthly minimums, and pricing is published per model.

**Pricing & Plans:** Pay-as-you-go usage pricing charged per token, per image, or per second of video depending on the model, with free trial credits and no monthly minimum. Some enterprise arrangements are available on request; check the pricing page for current per-model rates.

- **Unified multi-model endpoint:** Access hundreds of models across text, image, video, and audio through one API key and one base URL.
- **Smart Router with failover:** Routes each request to the fastest, cheapest, or most reliable provider and automatically retries elsewhere during outages.
- **OpenAI-compatible integration:** Works with OpenAI, Anthropic, and Google SDK formats so most existing code runs after changing the base URL and key.
- **Transparent per-model pricing:** See cost per token, image, or video second before calling so you can compare models on real numbers.
- **Usage dashboard:** Track spend and call volume in real time across all models and providers from one place.

**Strengths:** One integration covers many model families and modalities; Automatic failover reduces single-provider outage risk; Clear per-model pricing makes cost comparison straightforward; OpenAI-compatible format keeps migration effort low

**Limitations:** An intermediary layer adds a small amount of latency and one more dependency; You inherit EvoLink's supported model list rather than contracting directly with providers; Advanced enterprise needs may require contacting sales

[Profile (Markdown)](https://openaitools.app/tool/evolink-ai-model-api.md)

## Frequently Asked Questions

### How do API2D and EvoLink AI Model API compare in monthly traffic?

API2D has 214 monthly visits, while EvoLink AI Model API has 312,573. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

API2D has a month-over-month growth rate of -91.3%; EvoLink AI Model API has -27%.

### 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. EvoLink AI Model API: Free Trial, Paid, Contact for Pricing. Pay-as-you-go usage pricing charged per token, per image, or per second of video depending on the model, with free trial credits and no monthly minimum. Some enterprise arrangements are available on request; check the pricing page for current per-model rates.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Google's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models. | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 2 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | Industry-leading model selection and transparent pricing, but lacks some of the broader multimedia generation pipelines offered by EvoLink. | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 3 | [fal.ai](https://openaitools.app/tool/fal-ai) | 3,093,684 | -3.7% | Paid, pay-as-you-go usage-based pricing | One API for 1,500+ production-ready generative media models | [.md](https://openaitools.app/tool/fal-ai.md) |
| 4 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | [.md](https://openaitools.app/tool/orcarouter.md) |
| 5 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | Strong multimodal inference performance across image, video, and audio models, but pricing transparency varies by provider. | [.md](https://openaitools.app/tool/atlas-cloud.md) |
| 6 | [CometAPI](https://openaitools.app/tool/cometapi) | 602,966 | +49.7% | Pay-as-you-go (credits) | Provides access to 500+ models via OpenAI-compatible endpoints, but lacks advanced multi-provider failover controls. | [.md](https://openaitools.app/tool/cometapi.md) |
| 7 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | One open-source AI gateway for 100+ LLM providers | [.md](https://openaitools.app/tool/litellm.md) |
| 8 | [MuAPI](https://openaitools.app/tool/muapi) | 412,788 | +13.7% | Freemium | Consolidates generative media models effectively under single endpoints, but lacks the extensive text model variety of OpenRouter. | [.md](https://openaitools.app/tool/muapi.md) |
| 9 | [Runware](https://openaitools.app/tool/runware) | 402,862 | +27.1% | Paid | One API for 400K+ AI models, plus serverless and reserved GPUs on modular data centers | [.md](https://openaitools.app/tool/runware.md) |
| 10 | [Flaq AI](https://openaitools.app/tool/flaq-ai-api-platform) | 328,715 | +127.9% | Paid | Diverse support for 3D, voice, and video models through a unified API, though documentation can be sparse. | [.md](https://openaitools.app/tool/flaq-ai-api-platform.md) |

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Source: https://openaitools.app/compare/api2d-com-vs-evolink-ai-model-api

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