Claude 3.5 Sonnet (Jun 2024)
Claude 3.5 Sonnet (June 2024) is the original release of Anthropic's mid-tier 3.5-generation model, which established a new benchmark in the Sonnet line when launched. At release it outperformed Claude 3 Opus on a range of coding and reasoning tasks while costing significantly less to run, signaling Anthropic's intent to make high-capability AI more accessible.
This June snapshot is valuable for teams who need a stable, well-tested checkpoint or are comparing outputs against the October 2024 revision. Its strengths include structured data extraction, Python and TypeScript code generation, and analytical writing. A 200K context window makes it capable across long-form document tasks.
Key Features
Original 3.5-generation Sonnet capabilities at launch quality
Outperformed Claude 3 Opus on many coding benchmarks at release
200K context window for large document and code base analysis
Stable pinned checkpoint for regression testing and comparison
Strong structured output and JSON extraction
Reliable tool-use and function-calling support
Ideal Use Cases
A/B comparison baseline against later Sonnet checkpoints
Large codebase analysis and refactoring recommendations
Automated data extraction and document parsing pipelines
Technical writing and developer documentation
Regression testing environments requiring stable model behavior
Example Prompts for Claude 3.5 Sonnet (Jun 2024)
Technical Specifications
| Provider | Anthropic |
| Category | Text |
| Modality | Text -> Text |
| Context Window | 200K tokens |
| Training Cutoff | Early 2024 |
Frequently Asked Questions
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