And this is a critical point. Not only has Microsoft raised the pricing for their Bing Search API massively (a cost to Neeva and others) there are rumors that they were starting to enforce some terms of service that prevents the use of the API for many things including training LLMs.

Note - they took down their page on the pricing update that was here: https://www.microsoft.com/en-us/bing/apis/pricing-update; article about it at https://www.ghacks.net/2023/02/17/microsoft-increases-bing-s... and the pricing is still published at https://www.microsoft.com/en-us/bing/apis/pricing.

"Microsoft threatens to restrict data from rival AI search tools" https://money.yahoo.com/microsoft-threatens-restrict-data-ri...

Bing Search API ToS: https://www.microsoft.com/en-us/bing/apis/legal

edit to add links