OpenRouter records 19,941,437 monthly visits with -6.2% month-over-month growth and Paid pricing. WriteGO records 5,264 monthly visits with +118.4% growth and Paid pricing.
One API key for hundreds of AI models from every major provider
An AI writing workspace that drafts from page-cited evidence and reviews your document's integrity
| Dimension / Metric | | |
|---|---|---|
| Official Domain | openrouter.ai | writego.ai |
| Pricing Model | Paid | Paid |
| Monthly Visits | 19.94M (19,941,437) | 5.26K (5,264) |
| MoM Traffic Delta | -1.33M (-6.2%) | +2.85K (+118.4%) |
| Primary Market & Share | 🇺🇸 United States (16.1%) | 🇺🇸 United States (56.9%) |
| Direct Visits / mo | 11.96M | 2.11K |
| User Rating | 4.8 | 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.
An AI writing workspace that drafts from page-cited evidence and reviews your document's integrity
The ChatPDF tool answers questions about a paper using retrieved excerpts and verifies citations verbatim, so answers stay tied to a specific page.
Turn an approved outline and selected evidence into a draft in a resumable workspace that carries your quotes forward without pasting blind.
Findings must quote your document verbatim and are discarded if the excerpt cannot be found, so every flag points to something you can check.
The AI Detector surfaces review signals you can inspect rather than a single black-box percentage, and is framed as supporting evidence.
Free / Open-sourceParaphrase, proofread and summarize text with an AI writing workspace
Free / Open-sourceParaphrase, proofread and summarize text with an AI writing workspace
Free / Open-sourceAcademic proofreading, plagiarism checking and AI-powered writing tools in one place
Free / Open-sourceAcademic proofreading, plagiarism checking and AI-powered writing tools in one place
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.
Free / Open-sourceThe AI workspace where researchers read, write, and cite with every claim traceable to its source
Free / Open-sourceThe AI workspace where researchers read, write, and cite with every claim traceable to its source
Free / Open-sourceOne AI workspace to write, edit, detect, and humanize text
Free / Open-sourceOne AI workspace to write, edit, detect, and humanize text
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.
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-sourceAI academic writer with real sources and automatic citations
Free / Open-sourceAI academic writer with real sources and automatic citations
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models
