Early preview

HISTORICAL RELEASE COMPARISON

Claude 3.5 Sonnet vs GPT-4o: the 2024 releases

Sources checked Oct 7, 2026 ยท How we research

Both releases supported text and visual tasks. Sonnet arrived with Artifacts; GPT-4o emphasized integrated audio, vision and text, with features rolling out in stages.

These are the releases named below, not current product recommendations.

Release features and context
What to compareClaude 3.5 SonnetGPT-4o
SnapshotJune 2024 SonnetMay 2024 GPT-4o
Companion experienceArtifacts previewExpanded ChatGPT access
Historical distinctionCode and content workspaceIntegrated multimodal interaction

What this means in practice

For a website draft, inspect how easy it is to revise the output and whether the code works. For a spoken interaction, check the exact voice feature and its availability. A product experience and a model score answer different questions.

Which was better at everything?

This comparison does not declare an overall winner. It describes launch capabilities; a fair performance ranking needs the same tasks, versions and evaluation conditions.

Read the individual model stories

Sources

Developer reports describe their own results. This site has not independently reproduced them.

Anthropic: Introducing Claude 3.5 Sonnet Google Cloud: June 20 launch availability OpenAI: Hello GPT-4o OpenAI: GPT-4o rollout to ChatGPT users
How to compare benchmark results
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