anthropic/claude-opus-4-1

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Claude Opus 4.1

Name: Claude Opus 4.1
Brand: Anthropic

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in multi-file code refactoring, debugging precision, and detail-oriented reasoning. The model supports extended thinking up to 64K tokens and is optimized for tasks involving research, data analysis, and tool-assisted reasoning.

8/5/2025

200,000 tokens

#30 Text (spanish)

Specifications

Modalities

Input

image

text

file

Output

text

Supported Parameters

include_reasoning

max_tokens

reasoning

response_format

stop

structured_outputs

temperature

tool_choice

tools

top_k

top_p

Max Output Tokens

32,000

Leaderboard

Text

🏆OverallELO: 1,447

#65

🇯🇵JapaneseELO: 1,405

#60

🇨🇳ChineseELO: 1,461

#102

🇰🇷KoreanELO: 1,401

#57

🇬🇧EnglishELO: 1,457

#64

frenchELO: 1,462

#66

germanELO: 1,439

#62

spanishELO: 1,464

#30

russianELO: 1,445

#67

💻CodingELO: 1,505

#49

🧮MathELO: 1,434

#76

✍️Creative WritingELO: 1,442

#42

📝Instruction FollowingELO: 1,455

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🌶️Hard PromptsELO: 1,477

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💬Multi-TurnELO: 1,468

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Code

🏆OverallELO: 1,389

#64