First-party APIs
OpenAI-compatible
CN
01.AI Platform.
01.AI's first-party API for the Yi family — closed Yi-Lightning + open Yi-34B variants.
Cheapest 12 models
Where the floor is.
Sorted cheapest-first by $/M input. Useful when you're looking for the floor before picking a model.
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At a glance
- Service type
- First-party APIs
- Trust tier
- Tier 1
- Headquarters
- CN
- OpenAI-compat
- Yes
- Open weights
- Yes
- Proprietary
- Yes
When to pick 01.AI Platform
Best for
- Full feature coverage — prompt caching, batch tier, function calling, fine-tuning.
- The lowest per-token rate for the maker's own models.
- Production workloads where a direct billing relationship matters.
Avoid for
- Multi-model workflows that need a unified billing surface.
- Anywhere the maker's own SLA isn't sufficient.
Models on 01.AI Platform
Pricing + measured speed + self-host alternative, one row per model. Click a column header to sort.
| Model ↕ | Maker ↕ | Access ↕ | $/M in ↕ | $/M out ↕ | Tokens/sec ↕ | TTFT ↕ | Self-host on ↕ | |
|---|---|---|---|---|---|---|---|---|
| Yi-34B | 01.AI | api direct | — | — | — | — | 1× Nvidia RTX A5000 · INT4 | Open → |
| Yi-Lightning | 01.AI | api direct | $0.14 | $0.14 | — | — | API only | Open → |
| Yi-Lightning | 01.AI | api direct | $0.14 | $0.14 | — | — | API only | Open → |