# claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled)

Canonical page: https://agentsky.dev/models/anthropic/claude-sonnet-4-5-anthropic-enterprise
JSON record: https://gateway.agentsky.dev/v1/models/anthropic/claude-sonnet-4-5-anthropic-enterprise

claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) is a text-input model by Anthropic, available through the AgentSky API as anthropic/claude-sonnet-4-5-anthropic-enterprise at $2.475 per million input tokens and $12.375 per million output tokens.

Dedicated Anthropic Enterprise Fast / Distilled resource. This resource uses an independent supplier route and does not fall back to other resources.

## Facts

- **Model id:** `anthropic/claude-sonnet-4-5-anthropic-enterprise`
- **Maker:** Anthropic
- **Input modalities:** Text
- **Aliases:** `anthropic/claude-sonnet-4-5-anthropic-enterprise`, `claude-sonnet-4-5-anthropic-enterprise`

## Pricing

USD per million tokens on the default plan. Signed-in pages show your own plan's price; every response carries the cost of that call in `usage.cost`.

| Meter | Per 1M tokens |
|---|---|
| Input | $2.475 |
| Output | $12.375 |
| Cache read | $0.2475 |
| Cache write | $3.09375 |

## Use it

Anthropic wire base URL: `https://gateway.agentsky.dev`. OpenAI wire base URL: `https://gateway.agentsky.dev/v1`. Authenticate with an AgentSky API key (`ast_…`) and pass the model id.

### Anthropic SDK

```js
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://gateway.agentsky.dev",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const message = await client.messages.create({
  model: "anthropic/claude-sonnet-4-5-anthropic-enterprise",
  max_tokens: 256,
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(message.usage.cost); // USD, in the response
```

## Questions

### What is claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled)?

claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) is a model from Anthropic. Dedicated Anthropic Enterprise Fast / Distilled resource. This resource uses an independent supplier route and does not fall back to other resources.

### How much does claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) cost?

$2.475 / $12.375 per million tokens at the prices shown, for input and output respectively. The exact price of every call comes back in the response as usage.cost, so you never have to compute it.

### Which clients can call claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled)?

Anything that speaks the Anthropic Messages API, which covers the Anthropic SDK and Claude Code. Point the client's base URL at the gateway, use an AgentSky key, and pass anthropic/claude-sonnet-4-5-anthropic-enterprise as the model.

### How do I name claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) in a request?

The gateway accepts anthropic/claude-sonnet-4-5-anthropic-enterprise, claude-sonnet-4-5-anthropic-enterprise. Any of them resolves to the same model, so an existing integration usually needs no change to its model string.

### Can claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) read images?

No image input is listed for this model. Its supported input types are text. For screenshots or photographs, choose a model that lists image input.

### What output can claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) produce?

The listed output types are text. This model returns text. Producing image, video or audio files requires a suitable tool or another model; it is not included in text generation.

### What would 10,000 input tokens and 2,000 output tokens cost with claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled)?

At the displayed input and output rates, the model-token subtotal is $0.0495. This example assumes uncached input and excludes additional pricing categories, tool calls and agent runtime. Actual usage determines the final charge.

### How is cached input priced for claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled)?

The catalog lists $0.2475 per million cache-read tokens. Cache writes are listed at $3.09375 per million tokens. Repeating a prompt does not by itself guarantee a cache hit; only usage reported as cached receives that rate.

### Does the claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) token price cover an entire agent task?

No. The model price covers the model usage described above. A task can also incur tool and runtime charges, and several model calls may be needed to complete it. Compare total task usage when evaluating cost.

### How do I use claude-sonnet-4.5 (Anthropic Enterprise Fast / Distilled) on AgentSky?

This model is listed for API use. Use the model ID anthropic/claude-sonnet-4-5-anthropic-enterprise with a supported gateway operation. The agent composer is not offered here because the current agent model menu has no compatible match.