About
A smaller bill for the same models.
Halfbill exists to do one thing: serve the Claude and GPT models you already use, through the API you already wrote, at half the list price. Nothing else is on the roadmap that would dilute that.
- What Halfbill is
- An API and a web chat for 13 current Claude and GPT models, billed per token at half the vendors' list prices. You change a base URL and a key; everything else in your code stays the same.
- How the price works
- We buy inference capacity at volume and run a lean, focused platform. No sales team, no free tier, no marketing budget — the savings go into the price.
- What we do not do
- No free tier, no sales calls, no invented customer counts or logos. The models page and the pricing page are the product description; if a number is not there, we do not claim it.
- Who runs it
- Halfbill is operated by NEXTAPP LABS S.R.L., Strada Budeasa Mare nr. 228, Sat Budeasa Mare, Comuna Budeasa, Județ Argeș, Romania (EU). Company ID (CUI) 52062227, Trade Register no. J2025047098001. More at nextapplab.eu.
Contact: hello@halfbill.uk for general questions, support@halfbill.uk for account and billing help, legal@halfbill.uk for privacy and GDPR requests. More on the contact page.
Halfbill is an independent service and is not affiliated with, endorsed by, or sponsored by OpenAI or Anthropic. Model names are trademarks of their respective owners.