Anthropic
Official APIAnthropic makes these models and serves them through its own API, at the reference price every other provider is compared with.
Models16
- Cheapest for
- 1 models
- Serves
- 1 model types
Monthly visits—
Models by type
Anthropic's API
| Model | Input | Output | Lowest third-party | Context |
|---|---|---|---|---|
| Claude Opus 5.5Anthropic | $4/1M | From$20/1M from $16 at APIMart | $16/1MAPIMart-20% | 1M |
| Claude Sonnet 5.5Anthropic | $2/1M | From$10/1M from $8 at APIMart | $8/1MAPIMart-20% | 1M |
| Claude Haiku 5.5Anthropic | $0.10/1M | From$0.50/1M from $0.30 at Kie.ai | $0.30/1MKie.ai-40% | 1M |
| Claude Opus 5Anthropic | $5/1M | From$25/1M from $20 at APIMart | $20/1MAPIMart-20% | — |
| Claude Sonnet 4.6Anthropic | $3/1M | From$15/1M from $12 at APIMart | $12/1MAPIMart-20% | — |
| Claude Fable 5Anthropic | $10/1M | From$50/1M from $40 at APIMart | $40/1MAPIMart-20% | — |
| Claude Fable 5.1Anthropic | $10/1M | From$50/1M from $40 at APIMart | $40/1MAPIMart-20% | 1M |
| Claude Sonnet 5Anthropic | $2/1M | From$10/1M from $6.90 at Kenari | $6.90/1MKenari-31% | — |
| Claude Haiku 4.5 (latest)Anthropic | $1/1M | From$5/1M from $4 at APIMart | $4/1MAPIMart-20% | — |
| Claude Mythos 5Anthropic | $10/1M | From$50/1M from $40 at CometAPI | $40/1MCometAPI-20% | — |
| Claude Mythos 5.1AnthropicCheapest | $10/1M | From$50/1M | — | — |
| Claude Opus 4.5 (latest)Anthropic | $5/1M | From$25/1M from $20 at APIMart | $20/1MAPIMart-20% | — |
| Claude Opus 4.6Anthropic | $5/1M | From$25/1M from $20 at APIMart | $20/1MAPIMart-20% | — |
| Claude Opus 4.7Anthropic | $5/1M | From$25/1M from $20 at APIMart | $20/1MAPIMart-20% | — |
| Claude Opus 4.8Anthropic | $5/1M | From$25/1M from $20 at APIMart | $20/1MAPIMart-20% | — |
| Claude Sonnet 4.5 (latest)Anthropic | $3/1M | From$15/1M from $12 at APIMart | $12/1MAPIMart-20% | — |
Anthropic at a glance
16 models in total: 16 text. The cheapest is Claude Haiku 5.5 at $0.50 /1M. Claude Opus 5.5 has the largest context window, 1M tokens. The most searched is Claude Opus 5.5, with about 405K Google searches a month. The newest is Claude Haiku 5.5, released Oct 7, 2026.
Cheapest
- Claude Haiku 5.5$0.50/1M
- Claude Haiku 4.5 (latest)$5/1M
- Claude Sonnet 5.5$10/1M
- Claude Sonnet 5$10/1M
- Claude Sonnet 4.6$15/1M
Largest context
Most searched
Newest
- Claude Haiku 5.5Oct 7, 2026
- Claude Sonnet 5.5Sep 28, 2026
- Claude Opus 5.5Sep 22, 2026
- Claude Fable 5.1Aug 31, 2026
- Claude Opus 5Jul 24, 2026