GPT for Sheets™ and Docs™ is an AI writer for Google Sheets™ and Google Docs™. It enables you to use ChatGPT directly in Google Sheets™ and Docs™. It is built on top OpenAI ChatGPT, GPT-3 and GPT-4 models. You can use it for all sorts of tasks on text: writing, editing, extracting, cleaning, translating, summarizing, outlining, explaining, etc 
If ChatGPT was GPT for Chat, you can think of GPT for Sheets™ as SheetGPT.

The default model for all functions is now ChatGPT gpt-3.5-turbo.
Other base models can be chosen, including GPT-4 if you have access.

Website: https://gptforwork.com (learn how to use GPT for work)
How to set up: https://gptforwork.com/set-up/how-to-create-openai-api-key
Video tutorials: https://www.youtube.com/playlist?list=PLI1hJP_Ps2kPXEyL-8U3TuZuaTaP28d4B

Mentioned by Marc Andreessen as a "killer app": https://twitter.com/pmarca/status/1632855301648183296?s=20

The possibilities of OpenAI's ChatGPT and GPT-3 in your documents are almost endless. 

This add-on brings ChatGPT and GPT-3's AI power to Google Sheets™ by exposing many simple custom functions: 
GPT to get the result of ChatGPT in a single cell
GPT_LIST to get multiple result in a column (one item per cell)
GPT_TABLE to get a table of items from a prompt
GPT_FILL to fill a range from examples
GPT_FORMAT to sanitize your spreadsheet data into the same format
GPT_EXTRACT to extract entities from your Sheets™ data
GPT_EDIT to edit your spreadsheet content
GPT_SUMMARIZE to summarize your spreadsheet content
GPT_CLASSIFY to classify spreadsheet content into a single category
GPT_TAG to apply tags to your spreadsheet content
GPT_TRANSLATE to translate your spreadsheet content
GPT_CONVERT to convert from table to csv to html to json to xml, etc
GPT_MAP to map values from two columns

This add-on will help you achieve some tasks such as:
- generating blogposts ideas
- writing whole paragraphs or procedures
- cleaning up lists of names, adresses, emails or companies, dates, currency amounts, phone numbers
- classifying lists of reviews with sentiment analysis or feature categorization
- summarizing reviews
- writing responses to online comments
- trying different versions of a prompt quickly
- working on ad copy (PPC, Google ads, Facebook ads)
- working on SEO metadata (titles, descriptions)
- working on landing page copy
- managing and cleaning product catalogs for e-commerce stores (Shopify and Amazon)
- translations

Docs:
- outlining a piece of content
- expanding a piece of content
- writing emails or blogs
- summarizing notes
- translating content
- changing the style of content

In addition, this add-on will let you experiment easily with hyperparameters:
- temperature
- model (including fine-tuned models in Sheets™)
- maxTokens

This add-on is completely free to use. You only need to pay OpenAI's API cost. You will need to insert your OpenAI api key. This is unrelated to ChatGPT Plus/Pro subscriptions.
All the details are on our website: https://gptforwork.com

Please note that we recommend you write your letters to your grandmother by yourself with pen and paper, the slides are just provided as a cheeky examples of what can be achieved with this tool :)

This product is brought to you by talarian.io, maker of YAMM, Form Publisher and Awesome Table, which are some of the most popular add-ons of the Google Workspace Marketplace.

Talarian is not affiliated with OpenAI