1. You say the discounted cost for 1M queries per month with yearly commitment is $600 (= 1000 units, priced incrementally).
But according to your website (https://www.algolia.com/pricing/) 1000 units cost:
10 units free + (90 units x $0.83) + (400 units x $0.70) + (500 units x $0.61) = 659.70 !
This would be $659.70 versus the $600 you stated. Am I understanding something wrong?
2. What would be the discounted cost for 10M and 100M queries per month with yearly commitment?
For a quick search engine it's hard to beat Sphinx. I especially love that you can just point it at a database and give it a query and it will just work.