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Every model on ShuttleAI is assigned a tier that determines the minimum plan required to use it. Higher-tier models generally offer better reasoning, larger context windows, or are from frontier providers.

Tier breakdown

Free tier

Available to everyone — no plan required.
ModelProviderContextNotes
GPT-OSS 20BOpenAI131KLightweight open-source model
GPT-OSS 120BOpenAI131KHigh-performance open-source model
Free-tier models are ideal for experimentation, prototyping, and lightweight tasks.

Basic tier

Requires the Basic plan ($10/mo) or higher.
ModelProviderContextNotes
ShuttleAI AutoShuttleAI400KSmart request router
GPT-5.2OpenAI400KLatest GPT-5 series
Claude Haiku 4.5Anthropic200KFastest Anthropic model
Basic-tier models offer strong performance for everyday use at an affordable price.

Premium tier

Requires the Premium plan ($25/mo) or higher.
ModelProviderContextNotes
Claude Opus 4.6Anthropic200KMost intelligent Anthropic model
Claude Sonnet 4.6Anthropic200KBest speed/intelligence balance
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:
curl https://api.shuttleai.com/v1/models/verbose \
  -H "Authorization: Bearer shuttle-xxx"
Each model includes a plan field indicating the minimum tier:
{
  "id": "claude-opus-4.6",
  "plan": "premium",
  "request_multiplier": 2.0,
  "permission": {
    "context_length": 200000,
    "max_output": 32000,
    "tool_calling": true
  }
}

View all models

See the complete, up-to-date model list with tiers at shuttleai.com/models.