72% off official pricing
Claude Fable 5.1 at $2.80 in / $14 out per 1M tokens, against Anthropic's $10 / $50 list. The same official model, billed at a fraction of list.
Official Claude API · 72% off list
Claude on RouteMux.
72% off official pricing.
Official Claude API — Fable 5.1, Opus 5, Sonnet 5 and Haiku 4.5, all at 72% below Anthropic's published prices. One API, one key, and a balance you can get back.
Only successful requests are billed. Unused balance is refundable.
Why run Claude on RouteMux
A balance you can get back
Top up what you need, spend it on any model, and ask for the rest back. No subscription, no seats — and only successful requests are billed.
Drop-in, one base URL
Keep your OpenAI or Anthropic SDK. Point the base URL at RouteMux, paste your key, and pick any Claude model — Fable, Opus, Sonnet or Haiku.
72% OFF OFFICIAL PRICING
Claude Fable 5.1 pricing
Per 1M tokens, in USD — official Claude, 72% below list.
| Anthropic list | RouteMux | |
|---|---|---|
| Input | $10 / 1M | $2.80 / 1M |
| Output | $50 / 1M | $14 / 1M |
72% below Anthropic's official pricing for Claude Fable 5.1. Your first top-up gets 20% extra credit, and unused balance is refundable.
Questions, answered
How much cheaper is Claude on RouteMux?
Every Claude model runs at 72% below Anthropic's official pricing — Fable 5.1 costs $2.80 in / $14 out per 1M tokens against $10 / $50 list. Same official models, no throttling.
Do I need a balance to call Claude?
Yes — Claude models require a funded balance, so top up before your first call. There is no subscription: you pay for what you use, your first top-up earns 20% extra credit, and whatever you don't spend is refundable.
How do I call Claude through RouteMux?
Point your existing OpenAI or Anthropic SDK at RouteMux's base URL, use your RouteMux key, and set the model to anthropic/claude-fable-5-1, anthropic/claude-opus-5, anthropic/claude-sonnet-5 or anthropic/claude-haiku-4.5. No code rewrite.
What happens when my balance runs out?
Nothing breaks. Calls pause until you top up, and your keys, settings and history stay exactly where they were.
Start building with Claude today
Create your account, top up, and point your SDK at RouteMux. Minutes, not migrations.
Get started20% extra credit applies to your first top-up, within 72 hours of signing up. Unused balance is refundable.
