ModelMux

Route to the cheapest AI model that works—save 50%+ on every inference call.

Score: 8.1/10United StatesHard BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Solo founders of AI products face skyrocketing AI model costs that devour margins and prevent profitability despite solid user growth.

Solution

ModelMux is an intelligent router that analyzes your prompt, selects the optimal cheap/fast model from 10+ providers, and falls back seamlessly. Solo founders swap one endpoint, cut costs dramatically while maintaining quality via embedded benchmarks. Track per-request savings and A/B test models effortlessly.

Target Audience

Solo founders building AI-powered SaaS products with decent user growth but thin or negative margins

Differentiator

Live model benchmarking database updated daily, with prompt-type classification for 95% accuracy in routing.

Brand Voice

edgy

Features

Smart Routing Endpoint

must-have14h

Single POST URL routes to best model.

Model Benchmark DB

must-have16h

Quality/cost scores for 20+ models.

A/B Testing

must-have10h

Split traffic between models.

Savings Tracker

must-have8h

Per-request and aggregate cost comparisons.

Fallback Chains

must-have12h

Auto-retry with next-best model.

Custom Model Weights

nice-to-have8h

User-tuned routing prefs.

Latency Dash

nice-to-have6h

RTT metrics per model.

Bulk Test Tool

nice-to-have12h

Batch evaluate prompts.

Total Build Time: 86 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
created_attimestampNo

router_configs

ColumnTypeNullable
iduuidNo
user_iduuidNo
router_urltextNo

Relationships:

  • user_id references users(id)

model_benchmarks

ColumnTypeNullable
iduuidNo
model_nametextNo
providertextNo
quality_scorefloatNo
cost_per_millionfloatNo
updated_attimestampNo

requests

ColumnTypeNullable
iduuidNo
router_iduuidNo
chosen_modeltextNo
cost_savedfloatNo
timestamptimestampNo

Relationships:

  • router_id references router_configs(id)

API Endpoints

POST
/api/route

Intelligent model routing

🔒 Auth Required
GET
/api/benchmarks

Fetch model scores

🔒 Auth Required
POST
/api/abtest

Setup A/B test

🔒 Auth Required
GET
/api/savings

Request analytics

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui + Framer Motion
Backend
Next.js API + Supabase
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
OpenRouter API for benchmarksCron jobs for updates

Build Timeline

Week 1: Routing core

40h
  • Router endpoint
  • Benchmark import

Week 2: Analytics and auth

35h
  • Savings tracking
  • User dashboard

Week 3: A/B and fallbacks

30h
  • A/B testing
  • Fallback logic

Week 4: UI and payments

25h
  • Full UI
  • Stripe
  • Launch
Total Timeline: 4 weeks • 150 hours

Pricing Tiers

Free

$0/mo

10k req/mo

  • Basic routing
  • 5 models

Pro

$33/mo

1M req/mo

  • All models
  • A/B
  • Analytics

Enterprise

$149/mo

None

  • Custom benches
  • SLA
  • Unlimited

Revenue Projections

MonthUsersConversionMRRARR
Month 12004%$260$3,120
Month 69007%$2,100$25,200

Unit Economics

$45
CAC
$420
LTV
6%
Churn
82%
Margin
LTV:CAC Ratio: 9.3xExcellent!

Landing Page Copy

Ditch Expensive Models—Route Smart, Save Big

Feature Highlights

Auto-model selection
Live benchmarks
Seamless fallbacks
A/B testing
Real savings proof

Social Proof (Placeholders)

"'Halved my bills instantly.' - Hacker"
"'Smartest AI tool.' - Founder"
"'Quality up, costs down.' - Builder"

First Three Customers

Target r/LocalLLaMA and Twitter AI tinkerers complaining about cloud costs, offer free Pro for prompt tests. Launch waitlist on Product Hunt 'Upcoming'. Engage in AI Discord servers.

Launch Channels

Product Huntr/LocalLLaMATwitter #AItoolsHacker NewsAI Twitter spaces

SEO Keywords

cheapest LLM routermodel routing serviceAI model cost optimizermulti-LLM proxyOpenAI alternatives router

Competitive Analysis

OpenRouter

openrouter.ai
Usage fees
Strength

Model aggregation

Weakness

Manual selection

Our Advantage

Auto-routing + benchmarks

LiteLLM

litellm.ai
Open source
Strength

Proxy

Weakness

No intelligence

Our Advantage

Smart selection engine

🏰 Moat Strategy

Daily benchmark data network effect from user requests.

⏰ Why Now?

Explosion of cheap/open models (Llama3, Mistral) but no easy router for production SaaS.

Risks & Mitigation

technicalhigh severity

Model quality variance

Mitigation

Benchmarks + user feedback loop

financialmedium severity

Our inference costs

Mitigation

Markup on savings, cheap providers

Validation Roadmap

pre-build2 days

Benchmark 10 prompts across models

Success: 30%+ avg savings

mvp12 days

5 beta testers

Success: 40% savings avg

Pivot Options

  • Benchmark-as-a-service
  • Fine-tune router
  • Llama-only focus

Quick Stats

Build Time
150h
Target MRR (6 mo)
$2,800
Market Size
$1000.0M
Features
8
Database Tables
4
API Endpoints
4