Anthropictext

Claude 4 Sonnet

Name: Claude 4 Sonnet
Brand: Anthropic
Price: 3 USD
Availability: InStock

Claude 4 Sonnet is widely considered the best coding model available. It excels at agentic tasks, tool use, and producing clean, well-structured code. At the same price as Claude 3.5 Sonnet, it delivers a significant jump in capabilities.

Released

Jan 2025

Context

200K

Input Price

$3/1M

Output Price

$15/1M

Specifications

Parameters: Undisclosed

Context Window: 200,000 tokens

Open Source: No

Category: text

Benchmarks

MMLU90.5%

HumanEval94.2%

MATH82.8%

GPQA65.5%

Capabilities

Code generationAgentic tasksTool useAnalysisWritingStructured output

✓Vision

✓Function Calling

✓Streaming

✗Fine-tuning

Pros

✓Best coding model available
✓Excellent at agentic workflows
✓Great price-to-performance
✓Strong tool use
✓Fast enough for production

Cons

✗No fine-tuning
✗Can refuse borderline requests
✗Not the best at pure math
✗Weaker on creative writing vs Opus

How It Compares

See how Claude 4 Sonnet stacks up against the competition. View all comparisons →

Best For

Best coding model on the market. Excellent at agentic tasks and tool use.