I believe opencode go but only using deepseek flash would last you longer. (Equivalent to $65 in tokens but it's a monthly payment so you have to be using it up or deepseek direct will be cheaper)
First month is $5, later $10. Cancel any time. You can keep getting the deal with a new email.
Interesting. Thanks for letting me know. I will investigate that if I end up finding the API too expensive.