---
title: Claude Opus 5.5
url: https://platform.claude.com/docs/ko/models/opus-5-5/overview
description: "Claude Opus 5.5 개요: 용도, 모든 플랫폼의 모델 ID, 컨텍스트 윈도우, 출력 제한, 가격, 가용성, 그리고 이 모델로 구축하기 위한 가이드와 리소스를 소개합니다."
---
**Latest.** Released September 22, 2026.
For long-running agentic coding and knowledge work
Model ID: `claude-opus-5-5`
Context window: 1M tokens · Max output: 128K tokens · Input pricing: $4 / MTok · Output pricing: $20 / MTok
[Announcement](https://www.anthropic.com/claude-opus-5-5) · [What’s new](https://platform.claude.com/docs/ko/models/opus-5-5/whats-new-opus-5-5) · [Migration guide](https://platform.claude.com/docs/ko/models/opus-5-5/migration-guide)
## 개요
Claude Opus 5.5는 장시간 실행되는 에이전트 코딩 및 지식 작업을 위해 설계되었습니다. 일반적인 용도로는 몇 시간 동안 자율적으로 작동하는 코딩 에이전트, 대규모 리팩터링, 복잡한 시스템 엔지니어링, 비전 중심 워크플로, 컴퓨터 사용 등이 있습니다.
## 비교
| Model | Context | Max output | Price / MTok | Latency | Thinking | Default effort | Knowledge cutoff |
| :---------------------------------------------------------------------------------- | :------ | :--------- | :----------------- | :------- | :------------------- | :------------- | :--------------- |
| [Claude Fable 5.1](https://platform.claude.com/docs/ko/models/fable-5-1/overview) | 1M | 128K | $10 / $50 | Slower | Adaptive (always on) | `high` | Jun 2026 |
| **Claude Opus 5.5** (this model) | 1M | 128K | $4 / $20 | Moderate | Adaptive (always on) | `medium` | Jun 2026 |
| [Claude Sonnet 5.5](https://platform.claude.com/docs/ko/models/sonnet-5-5/overview) | 1M | 128K | $2 / $10 | Fast | Adaptive | `high` | Jun 2026 |
| [Claude Haiku 5.5](https://platform.claude.com/docs/ko/models/haiku-5-5/overview) | 1M | 128K | From $0.10 / $0.50 | Fastest | Adaptive | `medium` | Jun 2026 |
* **Context:** 1M tokens is roughly 555k words or 2.5M Unicode characters on the current tokenizer (introduced with Claude Opus 4.7); models before it fit about 750k words in 1M tokens. 200k tokens is roughly 150k words.
* **Max output:** Synchronous Messages API limit. On the Message Batches API, Claude Opus 5.5, Claude Opus 5, Claude Sonnet 5.5, Claude Sonnet 5, Claude Haiku 5.5, Claude Opus 4.8, Claude Opus 4.7, Claude Opus 4.6, and Claude Sonnet 4.6 support up to 300k output tokens with the output-300k-2026-03-24 beta header.
* **Price / MTok:** Input / output, base price per million tokens. Batch API requests are 50% off; prompt caching reads cost 10% of the base input price (2.5% on Claude Fable 5.1 and Claude Mythos 5.1, 5% on Claude Opus 5.5 and Claude Sonnet 5.5). See Pricing for the full list.
* **Latency:** Comparative latency, relative to the current lineup, as published in the models overview. Actual latency depends on prompt length, output length, and thinking effort.
* **Thinking:** Adaptive thinking lets the model decide how much to think, steered by effort. Extended thinking is the manual budget\_tokens mode on earlier models.
* **Default effort:** The effort parameter’s default on the Claude API. Models without a value don’t support the parameter.
* **Knowledge cutoff:** Reliable knowledge cutoff: the date through which the model’s knowledge is most extensive and reliable.
## 사양
### Model IDs
| Platform | Model ID |
| :--------------------------------------------------------------------------------------------------------------------------------------------------------- | :-------------------------- |
| Claude API | `claude-opus-5-5` |
| [Amazon Bedrock](https://platform.claude.com/docs/ko/build-with-claude/claude-in-amazon-bedrock) | `anthropic.claude-opus-5-5` |
| [Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/ko/build-with-claude/claude-models-on-google-cloud/google-managed) | `claude-opus-5-5` |
| [Microsoft Foundry](https://platform.claude.com/docs/ko/build-with-claude/claude-in-microsoft-foundry) | `claude-opus-5-5` |
| [Claude Platform on AWS](https://platform.claude.com/docs/ko/build-with-claude/claude-platform-on-aws) | `claude-opus-5-5` |
| [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/ko/build-with-claude/claude-models-on-google-cloud/anthropic-managed) | `claude-opus-5-5` |
### Pricing
| Feature | Value |
| :------------------------------------------------------------------------------------- | :------------------------------- |
| Input | $4 / MTok |
| Output | $20 / MTok |
| [5m cache write](https://platform.claude.com/docs/ko/build-with-claude/prompt-caching) | $5 / MTok |
| [1h cache write](https://platform.claude.com/docs/ko/build-with-claude/prompt-caching) | $8 / MTok |
| [Cache read](https://platform.claude.com/docs/ko/build-with-claude/prompt-caching) | $0.20 / MTok |
| [Batch API](https://platform.claude.com/docs/ko/build-with-claude/batch-processing) | 50% discount on input and output |
[Full price list](https://platform.claude.com/docs/ko/about-claude/pricing)
### Capabilities
| Feature | Value |
| :-------------------------------------------------------------------------------------------------------------------------- | :--------------------- |
| [Context window](https://platform.claude.com/docs/ko/build-with-claude/context-windows) | 1M tokens |
| Max output | 128K tokens |
| [Max output (Batch API, beta)](https://platform.claude.com/docs/ko/build-with-claude/batch-processing#extended-output-beta) | 300K tokens |
| [Thinking](https://platform.claude.com/docs/ko/build-with-claude/thinking) | Adaptive (always on) |
| [Default effort](https://platform.claude.com/docs/ko/build-with-claude/effort) | `medium` |
| Comparative latency | Moderate |
| Input → output | Text and images → text |
| Reliable knowledge cutoff | Jun 2026 |
| Training data cutoff | Jun 2026 |
### Availability
| Feature | Value |
| :---------------------------------------------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Status](https://platform.claude.com/docs/ko/about-claude/model-deprecations) | Active (latest) |
| Released | September 22, 2026 |
| Retirement | Not sooner than September 22, 2027 |
| Platforms | Claude API, [Amazon Bedrock](https://platform.claude.com/docs/ko/build-with-claude/claude-in-amazon-bedrock), [Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/ko/build-with-claude/claude-models-on-google-cloud/google-managed), [Microsoft Foundry](https://platform.claude.com/docs/ko/build-with-claude/claude-in-microsoft-foundry), [Claude Platform on AWS](https://platform.claude.com/docs/ko/build-with-claude/claude-platform-on-aws), [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/ko/build-with-claude/claude-models-on-google-cloud/anthropic-managed) |
## 알아두면 좋은 점
* “Adaptive thinking”(적응형 사고)은 항상 켜져 있으며 끌 수 없습니다. 사고 깊이는 [effort 매개변수](https://platform.claude.com/docs/ko/build-with-claude/effort)로 제어하세요.
* [Message Batches API](https://platform.claude.com/docs/ko/build-with-claude/batch-processing#extended-output-beta)에서 Claude Opus 5.5는 `output-300k-2026-03-24` 베타 헤더를 사용하여 최대 300k 출력 토큰을 지원합니다.
* 캐시 가능한 최소 프롬프트 길이는 512 토큰입니다. [프롬프트 캐싱](https://platform.claude.com/docs/ko/build-with-claude/prompt-caching#cache-limitations)을 참조하세요.
* [Models API](https://platform.claude.com/docs/ko/api/models/list)를 사용하여 한도와 기능을 프로그래밍 방식으로 조회하세요.
## 리소스
Claude Opus 5.5에 특화된 동작 차이와 프롬프팅 패턴입니다.
사고 깊이, “latency”(지연 시간), 비용을 위한 제어 수단입니다. 각 워크로드에 맞는 수준을 선택하세요.
적응형 사고의 작동 방식과 사고 블록이 보존되는 방식입니다.
Claude API에서 제공되는 더 낮은 지연 시간의 Claude Opus 5.5로, 별도로 가격이 책정됩니다.
## 참조
Claude Opus 5.5가 claude.ai 및 Claude 앱에서 사용하는 시스템 프롬프트입니다.
Claude Opus 5.5의 안전성 평가 및 배포 결정입니다.
배치 할인 및 프롬프트 캐싱 요금을 포함한 전체 가격표입니다.
모델 ID, 별칭, 고정 스냅샷의 작동 방식입니다.
모든 Claude 모델의 수명 주기 상태 및 종료 약속입니다.