How to use the Free Tier?

About

The Free Tier allows users to use the service with certain limits at no cost. This helps them test the product and see if it works for their goals before making any payments.

Which models are included

In AI Playground

Some models can be tested in the AI Playground available on our official website. There, you will find a list of models ready to be launched.

The following rules apply:

• Regular models come with 10 free requests per day.

• You can execute only one request at a time.

• All models, whether regular or Pro, have a limit of 50,000 AI/ML API tokens per day.

Via API

Using our API on the Free Tier, you can access:

• Chat completion text models,
• Embedding models,
• Image models.

The following Free Tier rules apply:

• When using Chat Completion text models, the maximum output is limited to 512 tokens. Image attachments in messages are not supported.

• Using the following image models, you can only 1 image generated at a time:

Model list

• flux/schnell
• flux-pro
• flux-pro/v1.1
• flux-pro/v1.1-ultra
• flux/dev
• flux/dev/image-to-image
• flux-realism
• stable-diffusion-v3-medium
• stable-diffusion-v35-large
• recraft-v3

• For the following models generated images are limited to a resolution of 512x512 pixels:

Model list

• dall-e-2
• dall-e-3

• If image generation requires more than 512 AI/ML API tokens, the request will not be processed.

Error Message

When you attempt to call the API after reaching the limit, you will receive an appropriate error. For example, if the /v1/chat/completions endpoint was called:

{
    "message": "You have exhausted the available [plan.rule:api_token] resource limit. Update your payment method to continue using the service. For more information please visit https://aimlapi.com/app/billing"
    "path": "/v1/chat/completions"
    "requestId": "798b860e-98c2-4e8e-8c50-550bcfc2eccc"
    "statusCode": "403"
    "timestamp": "2025-03-11T07:13:27.813Z"
}