---
title: "Claude Sonnet 4.5 API Pricing"
source_api: "anthropic"
model: "claude-sonnet-4-5-20250929"
provider: "Anthropic"
canonical_url: https://coolhandlabs.com/inference-apis/anthropic-claude-sonnet-4-5-20250929
index_url: https://coolhandlabs.com/inference-apis
---

# Claude Sonnet 4.5 sticker prices

List rates as published by Anthropic, before any volume or enterprise discounts.

| Field | Value |
|---|---|
| Provider | Anthropic |
| Pricing published by | Anthropic |
| Input cost | $3.00 / 1M tokens |
| Output cost | $15.00 / 1M tokens |
| Batch input / output | $1.50 / $7.50 per 1M |
| Cached input | $0.30 / 1M tokens |
| Cache creation | $3.75 / 1M tokens |
| 5-minute cache write | $3.75 / 1M tokens |
| Deprecated | No |


## Get this data free

Want to stay updated on price changes on this model? Pull this data free (no API key required):

```
curl "https://coolhandlabs.com/api/v2/inference_apis?q%5Bmodel_eq%5D=claude-sonnet-4-5-20250929&q%5Bsource_api_eq%5D=anthropic"
```

Full REST API docs: https://coolhandlabs.com/docs

## Pricing History

- Mar 16, 2026 – present: Input cost: $3.00 / 1M, Output cost: $15.00 / 1M, Batch input cost: $1.50 / 1M, Batch output cost: $7.50 / 1M, Cached input cost: $0.30 / 1M, Cache creation cost: $3.75 / 1M, 5-minute cache write cost: $3.75 / 1M, 1-hour cache write cost: $0.00 / 1M, Reasoning output cost: $0.00 / 1M, Cache storage cost: $0.00 / 1M/hr

## History

Last change detected: 2026-09-07T06:01:03Z (automated scan)

- 2026-03-16 (automated scan):
Initial record created

## Source

https://www.anthropic.com/pricing

## Comparable models

| Metric | Claude Sonnet 4.5 (this model) | [Claude Sonnet 4.6](https://coolhandlabs.com/inference-apis/anthropic-claude-sonnet-4-6) (newer, same tier) | [Claude Haiku 4.5](https://coolhandlabs.com/inference-apis/anthropic-claude-haiku-4-5-20251001) (cheaper alternative) |
|---|---|---|---|
| Provider | Anthropic | Anthropic | Anthropic |
| Input cost | $3.00/1M | $3.00/1M | $1.00/1M |
| Output cost | $15.00/1M | $15.00/1M | $5.00/1M |
| Status | Active | Active | Active |

## What other models does Anthropic offer?

| Model | Input cost | Output cost | Status |
|---|---|---|---|
| [Claude Opus 4](https://coolhandlabs.com/inference-apis/anthropic-claude-opus-4-20250514) | $15.00/1M | $75.00/1M | Deprecated 2026-07-13 |
| [Claude Sonnet 4](https://coolhandlabs.com/inference-apis/anthropic-claude-sonnet-4-20250514) | $3.00/1M | $15.00/1M | Deprecated 2026-07-13 |
| [Claude Opus 4.1](https://coolhandlabs.com/inference-apis/anthropic-claude-opus-4-1-20250805) | $15.00/1M | $75.00/1M | Deprecated 2026-07-13 |
| [Claude Fable 5](https://coolhandlabs.com/inference-apis/anthropic-claude-fable-5) | $10.00/1M | $50.00/1M | Active |
| [Claude Fable 5.1](https://coolhandlabs.com/inference-apis/anthropic-claude-fable-5-1) | $10.00/1M | $50.00/1M | Active |
| [Claude Haiku 4.5](https://coolhandlabs.com/inference-apis/anthropic-claude-haiku-4-5) | $1.00/1M | $5.00/1M | Active |

---
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