New GPT 5.1 model in GPT action

Introduction of GPT 5.1 Model

We have now added the GPT 5.1 model to the GPT action in workflows.

To access it, click the “+” icon and search for “GPT powered by OpenAI”.

Next, click on the “Model” field and select GPT 5.1.

• GPT 5.1 Input Cost: £1.250 / 1M tokens
• GPT 5.1 Output Cost: £10.000 / 1M tokens

• Improved and quicker reasoning compared to GPT 5
• More conversational and friendly personality
• Enhanced instruction following capabilities compared to other OpenAI models