Claude Sonnet 5
ClaudeBalanced
ThinkingTool UseVisionStructured Output
About this model
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Performance Tier
Balanced
Claude Sonnet 5 is a balanced model from Claude : strong performance at a reasonable price.
Strong cost-performance ratio. Reliable for most professional use cases without premium pricing.
Pricing
This model is included in Elosia plansHigh
High pricing. Reserve this level for tasks that demand maximum quality.
| Type | per 1M tokens |
|---|---|
| Input (prompt) | $2.00 |
| Output (completion) | $10.00 |
| Cache read | $0.200 |
| Cache write | $2.50 |
Capabilities
Context Length1.0M
Max Output Tokens128K
TokenizerClaude
Inputtext, image, file
Outputtext
Release DateJune 30, 2026
Benchmarks
General Intelligence
MMLU
Not reported
Mathematics
MATH-500
Not reported
Programming
HumanEval
Not reported
SWE-bench Verified
85.2%
SWE-bench Multilingual
78.3%
Reasoning
Humanity's Last Exam
43.2%
Agentic
SWE-bench Pro
63.2%
Terminal-Bench 2.1
80.4%
Where does Claude Sonnet 5 stand?
Compare its performance index against every other model.
Recommended Use Cases
CodingAnalysisResearchGeneral Chat
Strengths
- Strong agentic coding (SWE-bench Verified 85.2%, Terminal-Bench 2.1 80.4%)
- Excels at computer use and agentic search (OSWorld-Verified 81.2%, BrowseComp 84.7%)
- Strong tool-use reasoning (Humanity's Last Exam 57.4% with tools)
- 1M token context window for long-horizon agentic tasks
Limitations
- Anthropic's published suite is agentic-focused — classic academic benchmarks (GPQA, MMLU, AIME) are not reported
Frequently asked questions
Resources
This model may use your data for training