Anthropic models
All Anthropic models on Aether API: chat, image, audio, and embeddings behind one OpenAI-compatible key, with per-token pricing and at least 30% below Anthropic's own list price.
Claude models for chat, long documents, and coding, priced below Anthropic's own list price.
Every Anthropic model on Aether API
| Model | Context | Price |
|---|---|---|
| Claude Fable 5 | 1M | $7/M input | $35/M output |
| Claude Haiku 5.5 | 1M | $0.07/M input | $0.35/M output |
| Claude Haiku 4.5 20251001 | 200K | $0.7/M input | $3.5/M output |
| Claude Opus 4.1 20250805 | 200K | $10.5/M input | $52.5/M output |
| Claude Opus 4.5 20251101 | 200K | $3.5/M input | $17.5/M output |
| Claude Opus 4.6 | 1M | $3.5/M input | $17.5/M output |
| Claude Opus 4.7 | 1M | $3.5/M input | $17.5/M output |
| Claude Opus 4.8 | 1M | $3.5/M input | $17.5/M output |
| Claude Opus 5 | 1M | $3.5/M input | $17.5/M output |
| Claude Sonnet 4.5 | 200K | $2.1/M input | $10.5/M output |
| Claude Sonnet 4.6 | 200K | $2.1/M input | $10.5/M output |
| Claude Sonnet 5 | 1M | $1.4/M input | $7/M output |
| Claude Fable 5.1 | 1M | $7/M input | $35/M output |
| Claude Opus 5.5 | 1M | $2.8/M input | $14/M output |
| Claude Sonnet 5.5 | 1M | $1.4/M input | $7/M output |
How Anthropic models work on Aether API
- The request format is the OpenAI format, so the OpenAI SDK works after changing the base URL to
https://api.aetherapi.dev/v1. - Priced per token against prepaid credits, at least 30% below Anthropic's own list price.
- One key for Anthropic and every other provider in the catalogue, with spend limits per key.
Related
Compare the whole catalogue on the models page, see the credit packages, or read the quickstart.
Other providers: OpenAI · Google · xAI · DeepSeek · Alibaba · Perplexity · Mistral · Z.AI · Moonshot · Minimax · Black Forest Labs · Xiaomi · Runware · Together · StepFun
Aether API — OpenAI-compatible access to 13+ providers through one API key.