Claude Opus 4.1

Claude Opus 4.1: a claude-opus model from Anthropic, ~200K context, knowledge cutoff 2025-03-31

Published

scheduleReleased：August 5, 2025

Claude Opus 4.1 is a claude-opus model from Anthropic (~200K context, input around $15/1M tokens). Suitable for assistants, content generation, knowledge Q&A and business automation

historyVersions and aliases

Model IDclaude-opus-4-1-20250805

Version dateAugust 5, 2025

Sourcemodels.dev

descriptionOverview

Overview

Claude Opus 4.1 is provided by Anthropic, model ID claude-opus-4-1

Key specs

Context: 200K tokens
Max output: 32K tokens
Knowledge cutoff: 2025-03-31
Input price: $15/1M
Output price: $75/1M

Best for

Consider Claude Opus 4.1 when comparing context length, pricing, multimodal support and relay availability

lightbulbUse cases

Image and multimodal Q&A
Visual content analysis
Document and screenshot understanding

thumb_upStrengths

Very long context (~200K), good for long documents and codebases
Supports image and multimodal input
High single-response output limit (~32K)

infoLimitations

Knowledge cutoff 2025-03-31; newer facts need external retrieval
Pricing and availability vary by upstream and relay; verify with official docs and tests

linkReferences

open_in_newhttps://docs.anthropic.com/en/docs/about-claude/models