# Claude Sonnet 5.5

Claude Sonnet 5.5: Anthropic의 AI 모델, 출시일 2026-09-28. 컨텍스트 윈도는 1,000,000 토큰입니다. 최대 출력은 128,000 토큰입니다. 토큰 100만 개당 요금은 입력 $2.00, 출력 $10.00입니다.

- 개발사: Anthropic
- Id: claude-sonnet-5-5
- 보도 단계: 2026-09-22T00:00:00.000Z
- 출시됨: 2026-09-28T00:00:00.000Z
- 발견: 2026-09-28T17:54:23.498Z
  - [근거 링크](https://api.anthropic.com/v1/models)
- 상태: 출시됨
- 출시됨: 2026-09-28
  - [근거 링크](https://www.anthropic.com/claude-sonnet-5-5)
- 대표 URL: https://alexgetman.com/ko/models/anthropic/claude-sonnet-5-5/

## 자주 묻는 질문

### Claude Sonnet 5.5의 컨텍스트 창 크기는 얼마인가요?

컨텍스트 윈도는 1,000,000 토큰입니다. 최대 출력은 128,000 토큰입니다.

### Claude Sonnet 5.5의 가격은 얼마인가요?

토큰 100만 개당 요금은 입력 $2.00, 출력 $10.00입니다. 캐시 입력은 100만 개당 $0.10입니다.

### Claude Sonnet 5.5의 출시일은 언제인가요?

2026-09-28.

## 타임라인

- 2026-09-28T14:43:56.439Z · [Alex Getman](https://alexgetman.com/469/claude-sonnet-5-5-is-already-rolling-out-in-stealth-a-lot-of-users-including-fre/)
> Claude Sonnet 5.5 is already rolling out in stealth. A lot of users, including free users, are being routed to it.
> 
> The release is very close.
- 2026-09-28T17:32:02.983Z · [Alex Getman](https://alexgetman.com/471/sonnet-5-5-is-launching-right-now/)
> Sonnet 5.5 is launching right now!
- 2026-09-28T17:59:39.034Z · [Alex Getman](https://alexgetman.com/472/sonnet-5-5-is-out/)
> 🚨 Sonnet 5.5 IS OUT!
- 2026-09-28T18:23:32.385Z · [Alex Getman](https://alexgetman.com/473/sonnet-5-5-benchmarks-are-out/)
> 🚨 Sonnet 5.5 benchmarks are out
> 
> It crushes Sonnet 5, goes toe-to-toe with Opus 5.5, and beats GPT-6 Sol across most shared benchmarks.
- 2026-09-28T18:24:58.677Z · [Claude Code · changelog](https://code.claude.com/docs/en/changelog)
- 2026-09-28T18:25:26.909Z · [Alex Getman](https://alexgetman.com/474/sonnet-5-5-max-even-beats-opus-5-5-max-on-terminal-bench-while-staying-close-to-/)
> Sonnet 5.5 Max even beats Opus 5.5 Max on Terminal-Bench, while staying close to Opus across the rest. And against GPT Sol, the price/performance gap looks pretty brutal.
- 2026-09-28T18:28:06.160Z · [Alex Getman](https://alexgetman.com/475/sonnet-5-5-now-outputs-30-more-tok-s/)
> 🚨 Sonnet 5.5 now outputs 30% more tok/s
- 2026-09-28T18:36:19.568Z · [Alex Getman](https://alexgetman.com/476/sonnet-5-5-ranks-2-on-the-artificial-analysis-intelligence-index-ahead-of-fable-/)
> 🚨 Sonnet 5.5 ranks #2 on the Artificial Analysis Intelligence Index, ahead of Fable 5.1.
> 
> It also beats GPT-6 Sol by 8 points.
- 2026-09-28T19:57:49.233Z · [Alex Getman](https://alexgetman.com/477/sonnet-5-5-max-beats-gpt-6-astra-max-on-the-intelligence-index-vs-cost-curve/)
> 🚨 Sonnet 5.5 Max beats GPT-6 Astra Max on the Intelligence Index vs. cost curve
> 
> A few other things stand out:
> 
> 1. At medium, GPT-6 Sol is much cheaper than Sonnet 5.5 at a fairly similar intelligence level.
> 2. Around the Pareto line, GPT-6 Sol Max and Sonnet 5.5 High are basically neck and neck.
> 3. GPT-6 Astra Max lands roughly around Sonnet 5.5 XHigh.
> 
> + Sonnet 5.5 Max is in a league of its own at the top.
- 2026-11-13T17:12:46.898Z · [Anthropic · official articles](https://www.anthropic.com/claude-opus-5-5)
- 2026-11-13T17:12:46.898Z · [Anthropic · official articles](https://www.anthropic.com/claude-sonnet-5-5)
- 2026-11-13T17:43:43.996Z · [Anthropic · official articles](https://www.anthropic.com/news/cyber-verification-program)

## 근거 링크

- 2026-09-28T17:54:23.498Z: 카탈로그 등록 · Anthropic API · `claude-sonnet-5-5`

## 근거 링크

- [editorial](https://alexgetman.com/469/claude-sonnet-5-5-is-already-rolling-out-in-stealth-a-lot-of-users-including-fre/)
- [editorial](https://alexgetman.com/471/sonnet-5-5-is-launching-right-now/)
- [editorial](https://alexgetman.com/472/sonnet-5-5-is-out/)
- [Alex Getman](https://alexgetman.com/473/sonnet-5-5-benchmarks-are-out/)
- [editorial](https://alexgetman.com/474/sonnet-5-5-max-even-beats-opus-5-5-max-on-terminal-bench-while-staying-close-to-/)
- [editorial](https://alexgetman.com/475/sonnet-5-5-now-outputs-30-more-tok-s/)
- [editorial](https://alexgetman.com/476/sonnet-5-5-ranks-2-on-the-artificial-analysis-intelligence-index-ahead-of-fable-/)
- [editorial](https://alexgetman.com/477/sonnet-5-5-max-beats-gpt-6-astra-max-on-the-intelligence-index-vs-cost-curve/)
- [anthropic](https://api.anthropic.com/v1/models)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [Claude Code · changelog](https://code.claude.com/docs/en/changelog)
- [Command Code · models](https://commandcode.ai/docs/reference/cli/models)
- [Vertex AI · Model Garden](https://console.cloud.google.com/vertex-ai/publishers/anthropic/model-garden/claude-sonnet-5-5)
- [Anthropic API](https://docs.anthropic.com/en/docs/about-claude/models)
- [models.dev · catalogue](https://models.dev/#claude-sonnet-5-5)
- [models.dev · catalogue](https://models.dev/#claude-sonnet-5.5)
- [OpenCode · discovery](https://opencode.ai/data/anthropic/claude-sonnet-5-5)
- [OpenCode Zen · models](https://opencode.ai/zen)
- [OpenRouter](https://openrouter.ai/anthropic/claude-sonnet-5.5)
- [OpenRouter](https://openrouter.ai/anthropic/claude-sonnet-5.5:batch)
- [Anthropic · deprecations](https://platform.claude.com/docs/en/about-claude/model-deprecations)
- [anthropic-pricing](https://platform.claude.com/docs/en/about-claude/pricing)
- [anthropic-model-index](https://platform.claude.com/docs/en/models/overview)
- [review](https://platform.claude.com/docs/en/models/sonnet-5-5/overview)
- [Claude Docs](https://platform.claude.com/docs/en/release-notes/system-prompts/claude-sonnet-5-5)
- [Vercel AI Gateway](https://vercel.com/ai-gateway)
- [anthropic-articles](https://www.anthropic.com/claude-opus-5-5)
- [anthropic-articles](https://www.anthropic.com/claude-sonnet-5-5)
- [anthropic-articles](https://www.anthropic.com/news/cyber-verification-program)
- [DesignArena · uicomponent](https://www.designarena.ai/leaderboard/ui-components)
- [DesignArena · website](https://www.designarena.ai/leaderboard/website)
- [Claude Code · model ids](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.284)

## 시그널

- [Claude Code에서 Claude Sonnet 5.5 발견](https://alexgetman.com/ko/signals/2026/09/28/claude-sonnet-5-5-adaptive-reasoning-max-effort-default-fallback-debuts-2/)
- [Anthropic, Claude Sonnet 5.5 출시](https://alexgetman.com/ko/signals/2026/09/28/introducing-claude-sonnet-5-5/)
- [Claude Sonnet 5.5: API 제공](https://alexgetman.com/ko/signals/2026/09/28/claude-sonnet-5-5-out/)
- [Anthropic, Claude Sonnet 5.5 출시](https://alexgetman.com/ko/signals/2026/09/28/claude-sonnet-5-5/)