# Claude 3 Sonnet

Claude 3 Sonnet is an AI model released by Anthropic on Mar 4 2024. Tracked results include 40.4% on GPQA Diamond.

## Facts

| Field | Value |
| --- | --- |
| Model | Claude 3 Sonnet |
| Developer | Anthropic |
| Release date | Monday, Mar 4 2024 |
| Licensing | Closed |

## Tracked benchmark scores

| Benchmark | Score | Source | What it measures |
| --- | --- | --- | --- |
| GPQA Diamond | 40.4% | Lab | Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. |

## Questions and answers

### When was Claude 3 Sonnet released?

Claude 3 Sonnet was released by Anthropic on Monday, Mar 4 2024.

### Who made Claude 3 Sonnet?

Claude 3 Sonnet was built by Anthropic. AI safety company building the Claude family of models. Founded in 2021 by former OpenAI researchers.

### What benchmark scores did Claude 3 Sonnet get?

Claude 3 Sonnet reports 1 tracked benchmark score — GPQA Diamond: 40.4%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.

### Is Claude 3 Sonnet open source?

No. Claude 3 Sonnet is a closed model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.

### What came before and after Claude 3 Sonnet?

Anthropic's previous tracked release was Claude 3 Haiku on Mar 4 2024. It was followed by Claude 3 Opus on Mar 4 2024.


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Canonical page: https://aireleasetracker.com/model/anthropic/claude-3-sonnet
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.