Anthropic·Claude

Claude 3.7 Sonnet

Combined near-instant responses and controllable extended thinking in one model, alongside Claude Code.

LegacyLanguageReasoningCodingAgentMultimodalWeights not released

MODEL NUMBER013

First public date: 2025-02-24
Organization: Anthropic
Family: Claude

Specifications

Only published specifications are shown.

Context: 200,000 tokens
Input modalities: Text · Image
Open weights: No
Status: Legacy

Overview

Release dates

February 24, 2025 — Claude 3.7 Sonnet launched as a hybrid-reasoning model. ↗

Why it mattered

It merged the boundary between separate reasoners and general chat models into hybrid reasoning, while bringing coding agents into the main product line.

Specifications alongside predecessor

Compared with Claude 3.5 Sonnet ↗

PreviousClaude 3.5 Sonnet— · 200K ctx

CurrentClaude 3.7 Sonnet— · 200K ctx

Architecture & capabilities

Model capabilities

Hybrid reasoningCodingTool use

Release history

2025-02-24General release

Claude 3.7 Sonnet launched as a hybrid-reasoning model.

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Related models

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PredecessorClaude 3.5 SonnetView details →SuccessorClaude Opus 4View details →

Sources

Claude 3.7 Sonnet and Claude CodeAnthropic · Published 2025-02-24

Official · Verified

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Model ID: claude-3-7-sonnet
Page: https://llmlineage.com/en/models/claude-3-7-sonnet
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