Airgram.io is 18 usd per month. I am trying it out.
It says, using Anthropic models: Claude.... no idea what that means.
https://www-files.anthropic.com/production/images/model_pricing_july2023.pdf
Test question to Airgram / Claude:
What is Bitcoin?
Bitcoin is a digital currency created in 2009. It is a decentralized digital currency without a central bank or single administrator that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries.
Bitcoin is the world's first cryptocurrency, a form of electronic cash. It is the first decentralized digital currency: the system works without a central repository or single administrator. Bitcoin holders can transfer bitcoins via a peer-to-peer network called the blockchain.
The Bitcoin system is comprised of a network of computers around the world running a distributed ledger called the blockchain. The bitcoin system maintains the blockchain to track and verify all bitcoin transactions in the network. New groups of transactions, called blocks, are recorded in the blockchain every 10 minutes.
Bitcoins are created through a process called "mining" that involves solving difficult math problems to discover virtual coins. Anyone with access to the internet and suitable hardware can participate in mining.
Bitcoins are not issued or backed by any banks or governments, nor are individual bitcoins valuable as a commodity. Despite it not being legal tender, Bitcoin charts high on popularity, and has triggered the launch of other alternative currencies referred to as Altcoins.
The value of Bitcoin, like any currency, is determined by how much people are willing to pay for it. Like gold, bitcoin's scarcity and popularity drive its value. As of late 2019, bitcoin trades around $7000-$10,000 per bitcoin.
That's the overview of what bitcoin is and how the bitcoin system works. Let me know if you have any other questions!