Claude 3.5 Sonnet launches with Artifacts
Confirmed
Importance: major (4 of 5)The takeaway
Claude 3.5 Sonnet outperformed Claude 3 Opus at twice the speed and a fifth of the price, and quickly became developers’ favorite coding model; claude.ai added Artifacts, a side panel for live code and documents.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- Major (4 of 5)
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 AstraIn its training data
- Claude Opus 5.5In its training data
- Gemini 4 HydrogenIn its training data
- Grok 4.7In its training data
It happened before the cutoffs of all four assistants, so it can be in their training data.
Key facts
- Released 20 June 2024
- Priced at $3 / $15 per million input/output tokens
- 200K context window
- Artifacts feature introduced in claude.ai
- An upgraded version released 22 October 2024 added computer use
What happened
Anthropic’s mid-tier model surpassed its previous flagship across reasoning, coding and vision evaluations.
Why it matters
Established Claude as the leading coding model, driving adoption in tools like Cursor and paving the way for coding agents.
Sources
2 sources from 2 sites. Numbers match the chips in the text.
2 sources: 1 primary, 1 reaction
Primary
- Introducing Claude 3.5 Sonnet (Anthropic)anthropic.com, official
Reactions
- Wikipedia: Claude (language model)en.wikipedia.org, discussion
Changes
- Filed