Tag: chat completions
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Simon Willison’s Weblog: OpenAI platform: o1-pro
Source URL: https://simonwillison.net/2025/Mar/19/o1-pro/ Source: Simon Willison’s Weblog Title: OpenAI platform: o1-pro Feedly Summary: OpenAI platform: o1-pro OpenAI have a new most-expensive model: o1-pro can now be accessed through their API at a hefty $150/million tokens for input and $600/million tokens for output. That’s 10x the price of their o1 and o1-preview models and a full…
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Simon Willison’s Weblog: OpenAI API: Responses vs. Chat Completions
Source URL: https://simonwillison.net/2025/Mar/11/responses-vs-chat-completions/#atom-everything Source: Simon Willison’s Weblog Title: OpenAI API: Responses vs. Chat Completions Feedly Summary: OpenAI API: Responses vs. Chat Completions OpenAI released a bunch of new API platform features this morning under the headline “New tools for building agents" (their somewhat mushy interpretation of "agents" here is "systems that independently accomplish tasks on…