Proprietary AI models: API-only, and what that locks you into
| # | AI model | Capabilities | API $/1M (in / out) | Context window | Price / mo | Output $/1M | Overview | Visit site |
|---|---|---|---|---|---|---|---|---|
| 81 |  ERNIE 4.5 Turbo VL Baidu |    | 128K tokens | API only | View | |||
| 82 |  Tencent HY Vision 1.5 Instruct Tencent |  | API only | View | ||||
| 83 |  Doubao Seed Evolving ByteDance |  | API only | View | ||||
| 84 | Doubao Seed 2.1 Turbo ByteDance | | API only | View | ||||
| 85 | Doubao Seed 2.0 Code ByteDance |  | API only | View | ||||
| 86 | Doubao Seed 2.0 Lite ByteDance | | API only | View | ||||
| 87 | Doubao Seed 2.0 Mini ByteDance | | API only | View | ||||
| 88 | Doubao Seed Vision ByteDance | | API only | View | ||||
| 89 | Hy3 Tencent |  | $0.132 / $0.528 | 262.1K tokens | API only | 0.528 | View | |
| 90 |  Laguna S 2.1 Poolside |  | $0.09 / $0.18 | 1.05M tokens | API only | 0.18 | View | |
| 91 |  Ling 3.0 Flash Fin InclusionAI |  | $0.06 / $0.18 | 262.1K tokens | API only | 0.18 | View | |
| 92 |  Step 3.7 Flash Stepfun |  | $0.2 / $1.15 | 262.1K tokens | API only | 1.15 | View | |
| 93 |  GPT-5.6 Luna Pro OpenAI | | $0.2 / $1.2 | 1.05M tokens | API only | 1.2 | View | |
| 94 |  Muse Spark 1.3 Meta |  | $1.25 / $4.25 | 1.05M tokens | API only | 4.25 | View | |
| 95 | Ling 3.0 Flash Sante InclusionAI | | $0 / $0 | 262.1K tokens | API only | 0 | View | |
| 96 |  Claude Opus 4.6 Anthropic | | $5 / $25 | 1M tokens | API only | 25 | View | |
| 97 | Ling 3.0 Flash InclusionAI | | $0.021 / $0.063 | 262.1K tokens | API only | 0.063 | View | |
| 98 | GPT-5.6 Sol Pro OpenAI | | $2 / $10 | 1.05M tokens | API only | 10 | View | |
| 99 | Laguna XS 2.1 Poolside | | $0.06 / $0.12 | 262.1K tokens | API only | 0.12 | View | |
| 100 | GPT-6 Astra Pro OpenAI | | $10 / $50 | 1.05M tokens | API only | 50 | View |
Browse by need
These 151 models are available only through the vendor own API: no weights to download, no self-hosting, no fine-tuning beyond what the vendor exposes. In exchange you get no infrastructure to run and immediate access to whatever ships next.
Prices run from $0.87 to $50 per million output tokens. The frontier tier is entirely proprietary - GPT-6 Astra, Claude Fable 5.1, Claude Opus 5 - and that gap is the honest argument for closed models. The arguments against are equally practical: pricing changes without your consent, models get retired on the vendor schedule, and your data leaves your perimeter.
Models with this capability
The 151 models below all support this capability. Prices are input and output per 1M tokens from the vendor official price list; for dirhams multiply by 3.6725. Tap a card to open the model page.
How to choose
- Check the deprecation policy before building on a specific model version.
- Pin snapshot versions where the vendor offers them, rather than floating aliases.
- Read the data-retention terms if you handle personal or regulated information.
- Keep an open-weight fallback identified, even if you never use it.
Common mistakes
Who this suits
Related filters
Frequently asked questions
Why choose a closed model?
What are the risks?
What is the open alternative?
Can I fine-tune a proprietary model?
What happens when a model retires?
Frequently searched
Rate this page
Help us improve