The engine behind the fastest growing product of all time, ChatGPT is the successor to OpenAI's InstructGPT model. Originally based on GPT-3, ChatGPT now provides options for users to either use its GPT-3.5 or GPT-4 base model.
Initial release: 2022-11-30
Created in part by several of the developers of OpenAI's GPT-3, Claude is Anthropic's LLM trained with its research in developing helpful and safe AI systems. Highly capable, Claude is also trained using Anthropic's "Constitutional AI" feedback method.
Initial release: 2023-03-14
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