이 모델의 강점은 무엇인가요?

Enables advanced reasoning Long 200K context window Uses latest architecture

이 모델의 약점은 무엇인가요?

Restricted by non-open-source license Closed-source license Detailed specs not fully public

어떤 용도에 가장 적합한가요?

Complex logical reasoning Analyzing large documents Advanced problem-solving

모델 목록으로

Anthropic독점

Claude Opus 4.5

Name: Claude Opus 4.5
Price: 2.5 USD
Author: Anthropic

Claude Opus 4.5 is a foundation model developed by Anthropic. It is positioned as a reasoning model with advanced reasoning capabilities and supports an extensive context window of 200K.

파라미터

Undisclosed

컨텍스트

200K

라이선스

Proprietary

출시일

2025-11-25

API 가격

입력 가격 (1M 토큰당)

$2.5

출력 가격 (1M 토큰당)

과금 모드: standard

강점

・Enables advanced reasoning
・Long 200K context window
・Uses latest architecture

약점

・Restricted by non-open-source license
・Closed-source license
・Detailed specs not fully public

활용 사례

・Complex logical reasoning
・Analyzing large documents
・Advanced problem-solving

심층 분석

Arena Elo

1468

#6 overall at launch

SWE-Bench Verified

72.8%

at launch (Sept 2025)

Input Price

$5/1M

same as Opus 4.7

Output Price

$25/1M

same as Opus 4.7

Context Window

200K tokens

vs Opus 4.7: 1M

Output Speed

50 tok/s

frontier tier

강점

・Strong coding performance at launch (SWE-bench Verified 72.8%)
・Excellent mathematical reasoning
・Mature ecosystem with broad tool support
・Same pricing as Opus 4.7 ($5/$25)

약점

・200K context window — smaller than competitors (1M+)
・Superseded by Opus 4.7 with significant improvements
・Extended thinking removed in favor of adaptive thinking

경쟁사 비교

Model	Arena	SWE	GPQA	Price
Claude Opus 4.7	~1500	87.6%	94.2%	$5/$25
GPT-5.4	1467	80.8%	94.4%	$2.50/$15
Claude Opus 4.5	1468	72.8%	~90%	$5/$25

개요

Claude Opus 4.5 is Anthropic's previous flagship model, released in September 2025. At launch, it was the leading coding model with a 72.8% SWE-bench Verified score and strong general intelligence (Arena Elo 1468). The model offered a 200K context window and excelled at coding, mathematical reasoning, and extended autonomous work (30+ hours continuous operation). It was positioned as Anthropic's recommended model for "basically every use case" at the time of release. However, Opus 4.5 has been superseded by Opus 4.7, which delivers dramatically better agentic coding (87.6% vs 72.8% on SWE-bench Verified) and a 5x larger context window (1M vs 200K). Teams still using Opus 4.5 should consider migrating to Opus 4.7 for the substantial capability improvements.

벤치마크 및 성능

## Benchmark Scores | Benchmark | Opus 4.5 | Opus 4.7 | GPT-5.4 | |-----------|----------|----------|---------| | Arena Elo | 1468 | ~1500 | 1467 | | SWE-bench Verified | 72.8% | 87.6% | 80.8% | | Context Window | 200K | 1M | 1.05M | Opus 4.5 was a strong model at launch but has been significantly surpassed by Opus 4.7.

상세 비교

## Opus 4.5 vs Opus 4.7 Opus 4.7 delivers 14.8 points higher on SWE-bench Verified, a 5x larger context window, and new capabilities like adaptive thinking and self-verification. Same pricing ($5/$25). Migration is strongly recommended for production workloads. ## Opus 4.5 vs GPT-5.4 GPT-5.4 offers a 5x larger context window (1M vs 200K) at half the price ($2.50/$15 vs $5/$25). GPT-5.4 leads on web research and terminal coding, while Opus 4.5 leads on agentic coding. For most use cases, GPT-5.4 offers better value.

커뮤니티 평가

Opus 4.5 was well-received at launch, praised for its coding improvements and extended autonomous work capabilities. However, the 200K context window was seen as limiting compared to Google's 1M context models. The release of Opus 4.7 in April 2026 made Opus 4.5 largely obsolete for new deployments. Existing users report that Opus 4.5 still performs well for coding tasks but lacks the agentic capabilities of its successor.

활용 사례

1. **Coding Workflows**: Strong SWE-bench performance makes it suitable for code generation, review, and debugging tasks. 2. **Extended Analysis**: 30+ hours of continuous operation enables long-running research and analysis tasks. 3. **Cost-Conscious Teams**: If Opus 4.7's agentic capabilities aren't needed, Opus 4.5 offers solid performance at the same price point.