First-party APIs
US
Anthropic API.
Anthropic's first-party API for the Claude family. Direct billing relationship; prompt caching + batch tier discount.
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
- US
- OpenAI-compat
- No
- Open weights
- No
- Proprietary
- Yes
When to pick Anthropic API
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 Anthropic API
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 ↕ | |
|---|---|---|---|---|---|---|---|---|
| Anthropic: Claude 3 Haiku | Anthropic | api direct | $0.25 | $1.25 | — | — | API only | Open → |
| Anthropic: Claude Sonnet 4.5 | Anthropic | api direct | $3.0 | $15.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4.1 | Anthropic | api direct | $15.0 | $75.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4 | Anthropic | api direct | $15.0 | $75.0 | — | — | API only | Open → |
| Anthropic: Claude Sonnet 4 | Anthropic | api direct | $3.0 | $15.0 | — | — | API only | Open → |
| Claude Haiku 4.5 | Anthropic | api direct | $1.0 | $5.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4.7 (Fast) | Anthropic | api direct | $30.0 | $150.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4.6 (Fast) | Anthropic | api direct | $30.0 | $150.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4.6 | Anthropic | api direct | $5.0 | $25.0 | — | — | API only | Open → |
| Anthropic: Claude Opus 4.5 | Anthropic | api direct | $5.0 | $25.0 | — | — | API only | Open → |
| Claude 3.5 Sonnet | Anthropic | api direct | $3.0 | $15.0 | — | — | API only | Open → |
| Claude 3.5 Haiku | Anthropic | api direct | $1.0 | $5.0 | — | — | API only | Open → |
| Claude Sonnet 4.6 | Anthropic | api direct | $3.0 | $15.0 | — | — | API only | Open → |
| Claude Opus 4.7 | Anthropic | api direct | $15.0 | $75.0 | — | — | API only | Open → |