OpenRouter records 19,941,437 monthly visits with -6.2% month-over-month growth and Paid pricing. Side Reader records 355 monthly visits with -36.5% growth and Freemium pricing.
One API key for hundreds of AI models from every major provider
Read and chat with PDFs right beside ChatGPT, Claude and DeepSeek.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | openrouter.ai | side-reader.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 19.94M (19,941,437) | 355 (355) |
| MoM Traffic Delta | -1.33M (-6.2%) | -204 (-36.5%) |
| Primary Market & Share | 🇺🇸 United States (16.1%) | 🇻🇳 Vietnam (100%) |
| Direct Visits / mo | 11.96M | 149 |
| User Rating | 4.8 | 2.4 |
| Supported Platforms | Website | Website |
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.
Read and chat with PDFs right beside ChatGPT, Claude and DeepSeek.
PDFs render directly in the sidebar next to the chat, so your document and the AI conversation are visible at the same time.
Summarize a whole document, translate it, or have passages explained in simpler terms using the AI you are already signed into.
Built-in buttons cover the common actions, and you can edit their prompts to make the AI respond in the format and tone you need.
Ask about charts, scans or regions that cannot be selected by taking a screenshot question instead.
AI research platform for reading, understanding and writing scientific papers
AI research platform for reading, understanding and writing scientific papers
A free, AI-powered PDF editor for every device
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research
Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
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.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents
Chat with any PDF, video, or website and get cited answers in seconds
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-sourceProvides self-hosted and Python SDK control over 100+ LLMs, but requires setting up your own infrastructure.
