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Model Details
Domain:
Task:
Code generation
Language modeling
Language generation
Quantitative reasoning
Search
Visual question answering
Translation
Image captioning
Instruction interpretation
Mathematical reasoning
Visual puzzles
Code autocompletion
Chat
Character recognition OCR
Text autocompletion
Retrieval-augmented generation
System control
Code generationLanguage modelingLanguage generationQuantitative reasoningSearchVisual question answeringTranslationImage captioningInstruction interpretationMathematical reasoningVisual puzzlesCode autocompletionChatCharacter recognition OCRText autocompletionRetrieval-augmented generationSystem controlModel Access:
API access
Introduction
Our newest model, Claude Opus 4.5, is available today. It’s intelligent, efficient, and the best model in the world for coding, agents, and computer use. It’s also meaningfully better at everyday tasks like deep research and working with slides and spreadsheets. Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes to how work gets done.
Benchmarking
Notes: Flagship model from a leading developer in mid-2025; very likely it used >1e25 FLOP.
