Model index
Anthropic·Claude

Claude Opus 4.8

Improved agent judgment, tool efficiency, computer use, and long-session collaboration over Opus 4.7.

LegacyReasoningCodingAgentMultimodalWeights not released
MODEL NUMBER053
Release date
2026-05-28
Organization
Anthropic
Family
Claude
01

Specifications

Only published specifications are shown.

Context
1M
Input modalities
Text · Image
Open weights
No
Status
Legacy
02

Overview

Overview

Improved agent judgment, tool efficiency, computer use, and long-session collaboration over Opus 4.7.

03

Changes from predecessor

Compared with Claude Opus 4.7

PreviousClaude Opus 4.7 · 1M ctx
CurrentClaude Opus 4.8 · 1M ctx
New capabilities Computer use Effort control
04

Architecture & capabilities

Key capabilities

Long-horizon agentComputer useCodingEffort control
05

Release history

General release

Claude Opus 4.8 launched.

View source
06

Related models

Select a card to view the related model.

07

Sources