Tier breakdown
Free tier
Available to everyone — no plan required.| Model | Provider | Context | Notes |
|---|---|---|---|
| GPT-OSS 20B | OpenAI | 131K | Lightweight open-source model |
| GPT-OSS 120B | OpenAI | 131K | High-performance open-source model |
Basic tier
Requires the Basic plan ($10/mo) or higher.| Model | Provider | Context | Notes |
|---|---|---|---|
| ShuttleAI Auto | ShuttleAI | 400K | Smart request router |
| GPT-5.2 | OpenAI | 400K | Latest GPT-5 series |
| Claude Haiku 4.5 | Anthropic | 200K | Fastest Anthropic model |
Premium tier
Requires the Premium plan ($25/mo) or higher.| Model | Provider | Context | Notes |
|---|---|---|---|
| Claude Opus 4.6 | Anthropic | 200K | Most intelligent Anthropic model |
| Claude Sonnet 4.6 | Anthropic | 200K | Best speed/intelligence balance |
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.