Model index
Anthropic·Claude

Claude Sonnet 5

A new Sonnet generation with a default 1M context, adaptive thinking, and stronger agent capability closer to Opus.

CurrentReasoningCodingAgentMultimodalWeights not released
MODEL NUMBER054
Release date
2026-06-30
Organization
Anthropic
Family
Claude
01

Specifications

Only published specifications are shown.

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

Overview

Overview

A new Sonnet generation with a default 1M context, adaptive thinking, and stronger agent capability closer to Opus.

03

Changes from predecessor

Compared with Claude Sonnet 4.6

PreviousClaude Sonnet 4.6 · 1M ctx
CurrentClaude Sonnet 5 · 1M ctx
04

Architecture & capabilities

Key capabilities

Adaptive reasoningComputer useCodingAgent
05

Release history

General release

Claude Sonnet 5 launched and became the default for Free and Pro.

View source
06

Related models

Select a card to view the related model.

07

Sources