Claude Opus 4.6
Parameters
Undisclosed
Context Length
1M
Modality
Multimodal
Architecture
Undisclosed
License
Proprietary
Release Date
5 Feb 2026
Knowledge Cutoff
Aug 2025
API Pricing (per 1M)
Input: $5.00 · Output: $25.00
Evaluation Benchmarks
Rank
#23
| Benchmark | Score | Rank |
|---|---|---|
General Text | high 1505 Standard 1497 | 🥇 1 6 |
Software Engineering | 0.76 | 7 |
Agent Arena | 0.05 | 13 |
Reasoning | high 0.89 | 19 |
Graduate-Level QA | 0.913 | 19 |
Coding | high 0.78 | 28 |
Mathematics | high 0.89 | 33 |
General | high 0.75 | 36 |
LiveBench Average | high 0.75 | 36 |
Web Development | high 1546 Standard 1537 | 38 41 |
Agentic Coding | high 0.49 | 39 |
Data Analysis | high 0.70 | 45 |
Intelligence Index | max 0.32 high 0.26 | 89 114 |
Rankings
Overall Rank
#23
Coding Rank
#23
About Claude Opus 4.6
Claude Opus 4.6 is Anthropic's flagship intelligence model engineered for high-stakes enterprise reasoning and autonomous software development. It supports adaptive thinking levels and a 1M token context window with up to 128K generation capacity.
Technical Specifications
Architecture specifications are undisclosed for proprietary models.
Resources
About Claude 4
Anthropic's fourth generation Claude models with advanced reasoning, extended context windows up to 200K tokens, and configurable thinking effort levels. Features improved safety alignment, nuanced understanding, and sophisticated task completion. Includes Opus (most capable), Sonnet (balanced), and Haiku (fast) variants, with thinking modes that enable transparent chain-of-thought reasoning for complex problems.