
Delivers broader real-time grammar and tone correction across web apps, but lacks Scribbr's deep academic focus and citation formatting.
#1OpenRouter records 19,941,437 monthly visits with -6.2% month-over-month growth and Paid pricing. Scribbr records 7,530,803 monthly visits with +14.6% growth and Freemium pricing.

Academic proofreading, plagiarism checking and AI-powered writing tools in one place
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | openrouter.ai | scribbr.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 19.94M (19,941,437) | 7.53M (7,530,803) |
| MoM Traffic Delta | -1.33M (-6.2%) |
| +957.01K (+14.6%) |
| Primary Market & Share | 🇺🇸 United States (16.1%) | 🇺🇸 United States (32.1%) |
|---|
| Direct Visits / mo | 11.96M | 2.47M |
|---|
| User Rating | 4.8 | 4.4 |
|---|
| 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.

Academic proofreading, plagiarism checking and AI-powered writing tools in one place
A vetted academic editor reviews your paper within hours and returns tracked changes, comments and an explanation letter.
Scans your document against a large web and publication database to surface potentially unoriginal passages before submission.
Flags text likely generated by large language models and offers a rewriting mode aimed at making AI-assisted drafts sound more natural.
Creates and verifies references in APA, MLA, Chicago, AMA, IEEE and ACS styles from a URL, DOI or title search.

Delivers broader real-time grammar and tone correction across web apps, but lacks Scribbr's deep academic focus and citation formatting.
#1Provides robust paraphrasing and citation tools, but focuses less on comprehensive academic proofreading and human editing.
SpecialistAI content detection and a full writing toolkit in one place
SpecialistFocuses specifically on AI content detection and writing verification for educators, but lacks academic editing and proofreading workflows.

SpecialistAI grammar, spelling and style checker for 30+ languages

SpecialistProvides enterprise-grade AI detection and plagiarism checking, but does not offer human academic proofreading or citation generation.

Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Offers specialized academic writing assistance and AI citation generation, but lacks Scribbr's human proofreading and formal editing services.
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
Delivers broader real-time grammar and tone correction across web apps, but lacks Scribbr's deep academic focus and citation formatting.
Provides robust paraphrasing and citation tools, but focuses less on comprehensive academic proofreading and human editing.
SpecialistAI content detection and a full writing toolkit in one place
SpecialistFocuses specifically on AI content detection and writing verification for educators, but lacks academic editing and proofreading workflows.
SpecialistAI grammar, spelling and style checker for 30+ languages
SpecialistProvides enterprise-grade AI detection and plagiarism checking, but does not offer human academic proofreading or citation generation.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Offers specialized academic writing assistance and AI citation generation, but lacks Scribbr's human proofreading and formal editing services.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.