Anthropic · LLM

Claude 3.5 Sonnet

Mid-tier 3.5 model that outperformed Claude 3 Opus on many tasks.

language codingmultimodal

Capabilities

▸coding
▸agentic tool use
▸vision

Use cases

coding assistants · agents

Lineage

This model

Claude 3.5 Sonnet

Jun 20, 2024

Claude Sonnet 4.5

View the full Claude lineage →

Claude 3.5 Sonnet head-to-head comparisons

GPT-4o vs Claude 3.5 Sonnet
The two workhorse assistant models of 2024: GPT-4o is faster and natively multimodal, Claude 3.5 Sonnet writes and codes with more care over longer context.

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Background reading

Terms used on this page

Multimodal

Sources & verification

Information is compiled from official announcements, documentation and reputable industry coverage.
Last verified Sep 10, 2026

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