When was Claude 1 released?

Claude 1 was released by Anthropic on Tuesday, Mar 14 2023.

Claude 1 was built by Anthropic. AI safety company building the Claude family of models. Founded in 2021 by former OpenAI researchers.

What is the context window of Claude 1?

Claude 1 has a context window of 9k. That is the maximum amount of input plus output the model can hold in a single request.

No. Claude 1 is a closed model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.

It was followed by Claude 2 on Jul 11 2023.

Released Mar 14 2023

Claude 1 is an AI model released by Anthropic on Tuesday, Mar 14 2023. It has a 9k token context window.

Claude 1

: Claude 1 was released by Anthropic on Tuesday, Mar 14 2023.
: Claude 1 was built by Anthropic. AI safety company building the Claude family of models. Founded in 2021 by former OpenAI researchers.
: Claude 1 has a context window of 9k. That is the maximum amount of input plus output the model can hold in a single request.
: No. Claude 1 is a closed model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
: It was followed by Claude 2 on Jul 11 2023.