Tier breakdown
Free tier
Available to everyone — no plan required.
Free-tier models are ideal for experimentation, prototyping, and lightweight tasks.
Basic tier
Requires the Basic plan ($10/mo) or higher.
Basic-tier models offer strong performance for everyday use at an affordable price.
Premium tier
Requires the Premium plan ($25/mo) or higher.
Premium-tier models are frontier-level — the most capable models available.
The Scale plan ($75/mo) includes access to all models plus early access to beta models and higher rate limits. See Plans for details.
How tiers affect your usage
- If your plan doesn’t include a model’s tier, the API returns a 403 error
- You can always use models from lower tiers (e.g., Premium plans can use Free and Basic models)
- Some models have a request multiplier that costs multiple requests per call
Checking model requirements
Use the verbose models endpoint to see tier requirements for each model:plan field indicating the minimum tier:
View all models
See the complete, up-to-date model list with tiers at shuttleai.com/models.