AI Model Profile · Anthropic
Claude 3 Opus
Claude 3 Opus is an AI model developed by Anthropic (United States), released March 4, 2024. It is a closed model available via API.
Frontier model · API access · Epoch confidence: Speculative · Source: Epoch AI · Updated 2026-08-17
Specifications
| Developer | Anthropic |
| Country | United States |
| Released | March 4, 2024 |
| Domain | Multimodal,Language,Vision |
| Weights | Closed / API |
| Access | API access |
| Frontier model | Yes |
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Benchmarks
Performance on Epoch AI's reproducible evaluations (higher is better; scores are the best across scorers). These are independent runs, not developer-reported numbers.
Source: Epoch AI Benchmarking Hub. GPQA Diamond = graduate-level science Q&A; SWE-Bench Verified = real software-engineering tasks; FrontierMath = research-level maths; MATH Level 5 = hardest competition maths; AIME = olympiad maths; SimpleQA = factual accuracy.
Frequently asked
- Who developed Claude 3 Opus?
- Claude 3 Opus was developed by Anthropic (United States) and released on March 4, 2024.
- Is Claude 3 Opus open source?
- Claude 3 Opus is a closed model — its weights are not publicly released; it is available via API access.
- How does Claude 3 Opus perform on benchmarks?
- On Epoch AI's evaluations, Claude 3 Opus scores 4.7% on AIME (OTIS Mock), 47.2% on GPQA Diamond, 37.5% on MATH Level 5. Source: Epoch AI Benchmarking Hub.
Sources
Cite this model profile
Free to cite, quote and reference under CC BY 4.0 — with attribution to Affärslivet. Writing an article or answer? Reference this model profile as:
APA
Affärslivet Research. (2026). Claude 3 Opus — specifications & benchmarks. Affärslivet. https://xn--affrslivet-s5a.com/en/ai/models/claude-3-opus
MLA
"Claude 3 Opus — specifications & benchmarks." Affärslivet, 2026-08-17, xn--affrslivet-s5a.com/en/ai/models/claude-3-opus.
Source: Affärslivet — xn--affrslivet-s5a.com/en/ai/models/claude-3-opus. Attribute to Affärslivet when citing or linking.