Models / Anthropic

Claude Opus 4.1

Deprecated

DEPRECATED June 5, 2026; RETIRES August 5, 2026. Recommended replacement claude-opus-4-8. API ID claude-opus-4-1-20250805 (alias claude-opus-4-1). Extended thinking: Yes; adaptive thinking: No. 200k context, max output 32k. Pricing $15 in / $75 out; 5m cache $18.75, 1h cache $30, cache hits $1.50/MTok. Batch $7.50/$37.50. Reliable knowledge cutoff Jan 2025; training data cutoff Mar 2025. Snapshot date 20250805 implies an Aug 5, 2025 release.

Lifecycle warning

This model is deprecated. Scheduled shutdown: 5 Aug 2026. Recommended migration: Claude Opus 4.8.

Provider
Anthropic
Status
Deprecated
Input price
$15 / 1M tokens
Output price
$75 / 1M tokens
Cached input
$1.50 / 1M tokens
Blended price
$30 / 1M tokens
Context window
200,000 tokens (200K)
Max output
32,000 tokens
Modality
text, image, vision
Knowledge cutoff
2025-01
Released
API string
claude-opus-4-1-20250805

Source: Anthropic official documentation ↗