LLMAPI only
Claude 3 Opus
Anthropic
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Superseded by Claude 3.5 Sonnet
Specifications
- Type
- LLM
- Access
- API only
- Released
- March 4, 2024
- License
- Proprietary
- Context window
- 200,000 tokens
- Output speed
- 120 tok/s
- Latency (TTFT)
- 0.4s
- Input
- Text, Image
- Output
- Text
- API pricing
- $15.00 in · $75.00 out / 1M tokens
Capabilities
Function callingStructured output
Benchmarks
Reasoning
| BIG-Bench Hard | 86.8 |
| DROP | 83.1 |
| GPQA Diamond | 50.4 |
Coding
| HumanEval | 84.9 |
| LiveCodeBench | 27.9 |
General
| MMLU | 86.8 |
| MMLU-Pro | 68.5 |
| Humanity’s Last Exam | 3.1 |
Our take
The original flagship of the Claude 3 family and, briefly, the strongest model available. Quickly eclipsed on price/performance by 3.5 Sonnet.