Free / Open-sourceAI engineering courses, certificates, and the world's biggest AI newsletter

CodeFast records 13,640 monthly visits with -63.8% month-over-month growth and Paid pricing. OpenRouter records 19,941,437 monthly visits with -6.2% growth and Paid pricing.

Learn just enough code to launch a real online business in 14 days
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | codefa.st | openrouter.ai |
| Pricing Model | Paid | Paid |
| Monthly Visits | 13.64K (13,640) | 19.94M (19,941,437) |
| MoM Traffic Delta | -24.04K (-63.8%) |
| -1.33M (-6.2%) |
| Primary Market & Share | 🇮🇳 India (39.9%) | 🇺🇸 United States (16.1%) |
|---|
| Direct Visits / mo | 5.88K | 11.96M |
|---|
| User Rating | 4.4 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|

Learn just enough code to launch a real online business in 14 days
Fundamentals, a full SaaS build, and the business side — payments, domains, hosting, SEO — are covered in about twelve hours of video instead of the dozens of hours a conventional JavaScript course spends on topics you will never use.
Rather than theory for interviews, you progressively build a real authenticated, paying SaaS, which is the actual deliverable of the course.
Sections on AI-powered coding and design show how to use AI to explain code, fix bugs and generate parts of your app, framed as leverage on top of fundamentals.
The syllabus includes the non-coding skills that decide whether an app makes money: copywriting essentials, payments with Stripe and LemonSqueezy, domain and DNS setup, hosting and SEO.
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.
Free / Open-sourceAI engineering courses, certificates, and the world's biggest AI newsletter


Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
#2Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.

Free / Open-sourceFree courses, live events and community for building real AI skills

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

Free / Open-sourceFree AI hackathons and a global community for AI builders
One API for fast, cost-predictable inference on LLMs and multimodal models
Free / Open-sourceFree practical deep learning courses, research and open-source libraries

Aggregates hundreds of foundation models and agentic tools under one endpoint, but lacks OpenRouter's community popularity and extensive prompt tuning.
Free / Open-sourceAI engineering courses, certificates, and the world's biggest AI newsletter
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.
Free / Open-sourceFree courses, live events and community for building real AI skills
One unified API for 100+ AI models, with insurance when output disappoints
Free / Open-sourceFree AI hackathons and a global community for AI builders
One API for fast, cost-predictable inference on LLMs and multimodal models