Gemini 4 Argon is now available in Retool through Google and Google Vertex AI. It is available to Enterprise organizations that bring their own key.

Use Gemini 4 Argon with AI resource queries and building apps.

Retool now supports the following new AI models:

• GPT 6.1 Sol through OpenAI for AI resource queries and building apps.
• Claude Sonnet 5.5 through Anthropic and Amazon Bedrock for AI resource queries and building apps.

Organizations on the Business plan now have access to Retool-provided AI models for app building. These models, prefixed with Retool, have been tuned by Retool for enhanced performance and speed for app building.

The following Retool-provided models are supported:

• Retool Mini
• Retool Power

You can now prompt the app building agent to create REST API or PostgreSQL resources directly from the app builder.

Describe the resource that you want to create, and the agent initiates the resource creation process. You'll be asked to provide credentials or more details where applicable.

Retool now supports the following new AI models for AI resource queries:

• GPT 6 Luna.
• GPT 6 Sol.
• Enterprise only: GPT Image 2.5 Flare. Must bring your own key.
• Enterprise only: GPT Image 2.5 Sunburst. Must bring your own key.

Organizations on the Team plan can now use Retool-provided AI models for app building, in addition to the full catalog of supported models. These models, prefixed with Retool, have been tuned by Retool for enhanced performance and speed for app building.

The following Retool-provided models are supported:

• Retool Mini
• Retool Power

Claude Opus 5.5 is now available in Retool through Anthropic for all paid plans and through Amazon Bedrock for Enterprise plans. It can be used in the following ways:

• For AI resource queries with your own key.
• For app building with a Retool-managed key or with your own key.

Organizations on the Free plan now use Retool-provided AI models for app building. These models, prefixed with Retool, have been tuned by Retool for enhanced performance and speed for app building. Access to models from other providers is now only available on paid plans.

Builders using these models will notice comparable quality and faster speeds when compared with other models previously available on the Free plan.

The following Retool-provided models are supported:

• Retool Mini
• Retool Power

Retool now supports using external MCPs as resources in the app builder. The app building agent creates function calls to utilize tools from your connected MCP servers, which can be used while building or at app runtime. For example:

Users of the published app can only trigger MCP tools for which they have permission.

Retool now supports the following new AI models:

• GPT 5.4 Mini through OpenAI for AI resource queries.
• GPT 5.4 Nano through OpenAI for AI resource queries.
• GPT 6 Astra through OpenAI for AI resource queries.
• Claude Fable 5.1 through Anthropic and Amazon Bedrock for AI resource queries.
• Gemini 3.8 Flash through Google and Google Vertex AI for AI resource queries.