Back to Models
anthropic/claude-opus-4-1
Not Available
Claude Opus 4.1
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
32,000Leaderboard
Text
🏆OverallELO: 1,447
#59🇯🇵JapaneseELO: 1,405
#59🇨🇳ChineseELO: 1,461
#99🇰🇷KoreanELO: 1,401
#54🇬🇧EnglishELO: 1,457
#57frenchELO: 1,462
#65germanELO: 1,439
#60spanishELO: 1,464
#30russianELO: 1,446
#62💻CodingELO: 1,505
#46🧮MathELO: 1,433
#75✍️Creative WritingELO: 1,442
#40📝Instruction FollowingELO: 1,455
#37🌶️Hard PromptsELO: 1,477
#48💬Multi-TurnELO: 1,469
#48Code
🏆OverallELO: 1,386
#60