Claude Opus 4.1

Anthropic

DISCONTINUED. An August 2025 incremental upgrade to Claude Opus 4 with improved agentic and coding performance. Anthropic has deprecated the model and retires it on August 5, 2026; Claude Opus 5 is the documented migration target. Superseded on price and capability by the Opus 4.5 generation onward.

Strengths

Improved agentic and coding performance over Opus 4
Extended thinking for complex reasoning
200K context with vision and tool use

Caveats

DISCONTINUED - deprecated by Anthropic and retired on August 5, 2026
Migrate to Claude Opus 5, the migration target named in Anthropic's docs
Premium pricing ($15/$75) - Opus 4.5+ deliver more for $5/$25
32K max output and 200K context trail the newest Opus models

Vendor: Anthropic
Context Window: 200,000 tokens
Max Output: 32,000 tokens
License: Proprietary
Release Date: 2025-08-05
Training Cutoff: 2025-03-31
Modalities: text
image

Capabilities

Vision

Audio

Video

Tool Use

Resources

API Documentation

Pricing

$15 per 1M input tokens, $75 per 1M output tokens. Prompt caching and Batch API (50% off) available.