API2D records 214 monthly visits with -91.3% month-over-month growth and Paid pricing. OpenRouter records 19,941,437 monthly visits with -6.2% growth and Paid pricing.
Use top AI models like electricity — register, top up, paste your key
One API key for hundreds of AI models from every major provider
| Dimension / Metric | | |
|---|---|---|
| Official Domain | api2d.com | openrouter.ai |
| Pricing Model | Paid | Paid |
| Monthly Visits | 214 (214) | 19.94M (19,941,437) |
| MoM Traffic Delta | -2.23K (-91.3%) | -1.33M (-6.2%) |
| Primary Market & Share | 🇹🇼 Taiwan (100%) | 🇺🇸 United States (16.1%) |
| Direct Visits / mo | 86 | 11.96M |
| User Rating | 3.8 | 4.8 |
| Supported Platforms | Website | Website |
Use top AI models like electricity — register, top up, paste your key
One base URL and key work with virtually any app, SDK or self-hosted chat client that supports a custom API address.
Route requests to OpenAI models, Claude, Stability diffusion, Azure TTS and vector database services from a single account.
Consumption is metered in points with a published multiplier, so you pay for what you use rather than a flat subscription.
Identical request bodies return cached answers for free for 24 hours, and a header can disable caching when freshness matters.
One API key for hundreds of AI models from every major provider
Six hundred plus models for text, image, video, audio, transcription, embeddings, and reranking behind one OpenAI-compatible API.
Requests are rerouted to another provider on outages or rate limits by default, so you don't write custom retry logic.
The auto-router selects a model and provider per request using live marketplace performance and pricing data.
Track spend, tokens, and usage per model, provider, and team member in one place, including bring-your-own-key usage.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.
SpecialistDelivers exceptional inference speed and high-throughput performance for open models, but focuses primarily on hosted weights rather than multi-provider aggregation.
Free / Open-sourceOne OpenAI-compatible API key for 500+ AI models
Free / Open-sourceOne OpenAI-compatible API key for 500+ AI models
Free / Open-sourceProvides self-hosted and Python SDK control over 100+ LLMs, but requires setting up your own infrastructure.
SpecialistLow-cost serverless inference APIs for 200+ open models
One unified API for 100+ AI models, with insurance when output disappoints
One unified API for 100+ AI models, with insurance when output disappoints
Free / Open-sourceOne API for LLM, image, video, and audio models in production
Free / Open-sourceOne API for LLM, image, video, and audio models in production
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models
One API key, 100+ LLMs, official pricing with no platform markup
One API key for hundreds of AI models
Aggregates hundreds of foundation models and agentic tools under one endpoint, but lacks OpenRouter's community popularity and extensive prompt tuning.
