Anthropic
Claude Sonnet 5.5
claude-sonnet-5.5
Total Context
1M
Max Output
128K
Released
N/A
Input$2 / M tokens
Output$10 / M tokens
Claude Opus 4.6
claude-opus-4.6Claude Opus 4.6 is described as a very strong Anthropic model for complicated requests that require concrete planning and polished execution. Official materials emphasize following through: breaking work into steps, executing, and delivering refined results. It is best framed as a high-autonomy model for complex professional work.
Context Window
1M tokens
Maximum Output
128K tokens
Release Date
Feb 5, 2026
Modalities
Claude Opus 4.6 Pricing
| Input Price | Output Price | Cache Read | Cache Create 5m |
|---|---|---|---|
| $5/M | $25/M | $0.5/M | $6.25/M |
Claude Opus 4.6 API Capabilities
Reasoning
Supported
Tool calling
Supported
Temperature parameter
Supported
Attachments
Supported
Knowledge Base
2025-05-31
Endpoint Protocols
Messages API
Claude Opus 4.6 Model Highlights
Claude Opus 4.6 combines repository-scale software engineering, long-context analysis and adaptive reasoning for demanding agentic and professional work.
Repository-Scale Engineering
Navigates large codebases, plans coordinated changes and catches mistakes through stronger review and debugging.
Long-Context Reasoning
Tracks and retrieves information across very large inputs with less context drift, then reasons over the recovered evidence.
Adaptive Agentic Reasoning
Adjusts reasoning effort to task difficulty while sustaining planning and execution over extended agent workflows.
Claude Opus 4.6 Use Cases
Claude Opus 4.6 is suited to complex codebase repair, multi-source research and professional document or data workflows.
Complex Codebase Repair
Explore unfamiliar services, isolate the root cause of a failure and implement coordinated fixes with tests.
Multi-Source Deep Research
Search across extensive material, reconcile conflicting evidence and produce a structured, traceable analysis.
Professional Data Deliverables
Analyze financial or operational data and turn findings into organized documents, spreadsheets or presentation content.
How to Use Claude Opus 4.6 via the TokenHub API
curl 'https://us-api.tokenhub.com/v1/messages' \
-X 'POST' \
-H "Authorization: Bearer $TOKENHUB_API_KEY"Claude Opus 4.6 Benchmarks
| Index score | ||
|---|---|---|
| Artificial Analysis Intelligence Index | Artificial Analysis broad capability aggregate | 37.8 |
| Artificial Analysis Coding Index | Artificial Analysis software task aggregate | 47.6 |
| Knowledge & Reasoning | ||
| GPQA | Advanced science problem solving | 84% |
| HLE | Broad expert-level exam set | 18.6% |
| Coding & Engineering | ||
| SciCode | Scientific coding challenges | 45.7% |
| Terminal-Bench Hard | Hard terminal task execution | 48.5% |
| Instruction Following & Agent Tasks | ||
| IFBench | Prompt constraint adherence | 44.6% |
| AA-LCR | Long-context reasoning | 58.3% |
| τ²-Bench | Agent workflow tasks | 84.8% |
Metrics sourced from Artificial Analysis
Frequently asked questions about Claude Opus 4.6
Understand what Claude Opus 4.6 is, its best uses, distinguishing strengths, practical tradeoffs, and safe TokenHub integration guidance.
What is the intended positioning of Claude Opus 4.6?+
Claude Opus 4.6 is a powerful Opus model for complex coding, research, and agentic professional workflows. It remains a defined model generation, but newer models in the same family may be preferable for new evaluations.
Is Claude Opus 4.6 a good choice for difficult software-engineering tasks?+
Best-fit scenarios include difficult software-engineering tasks, deep research and evidence synthesis, and professional document and decision analysis. Test representative inputs and define measurable acceptance criteria before production.
Which strengths distinguish Claude Opus 4.6 from nearby options?+
Key strengths include strong reasoning on difficult problems, reliable execution of multi-step agent workflows, and effective use of tools and function calls. This combination is especially useful for deep research and evidence synthesis.
Which workloads are a poor fit for Claude Opus 4.6?+
Consider another model when the project can benefit from a newer Opus generation, the workload is simple enough for a smaller model, or the workflow cannot include human review for important decisions. Run generated code through tests, security checks, and human review before merging or deployment.
Which TokenHub details matter when configuring Claude Opus 4.6?+
In TokenHub, select the exact model identifier displayed for Claude Opus 4.6, use the endpoint documented for your account, and authenticate with your TokenHub credentials. Check the TokenHub model page for the available Claude features, context limits, tool support, and current model status for your account.
Ready to use Claude Opus 4.6?
Use one API key to access Claude Opus 4.6 and more AI models through TokenHub.
Media and Discussions
Selected public videos and posts related to this model.
X (Twitter)
Reddit
YouTube