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 NUMBER080
First public date
2026-05-28
Organization
Anthropic
Family
Claude
01

Specifications

Only published specifications are shown.

Context
1,000,000 tokens
Input modalities
Text · Image
Open weights
No
Status
Legacy
02

Overview

Release dates

— Claude Opus 4.8 launched. ↗

03

Specifications alongside predecessor

Compared with Claude Opus 4.7 ↗

PreviousClaude Opus 4.7— · 1M ctx
CurrentClaude Opus 4.8— · 1M ctx
04

Architecture & capabilities

Model capabilities

Long-horizon agentCoding

Connected tools

Computer use

API features

Effort control
05

Release history

General release

Claude Opus 4.8 launched.

View source
06

Related models

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07

Sources

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