About
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...
Related Models
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Pricing
Input
$3.00
per 1M tokens
Output
$15.00
per 1M tokens
Blended
$6.00
per 1M tokens
Cheaper than 7% of models. Median price is $0.54/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
Daily
$6.00
Monthly
$180.00
vs. Similar Models
Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)
$6.000%
Anthropic: Claude Sonnet 4.6
$6.000%
Claude 4.5 Sonnet (Reasoning)
$6.000%
Claude Sonnet 4.6 (Non-reasoning, Low Effort)
$6.000%
Performance
Context Window
1.0M
tokens
Larger than 80% of models
Max Output
64K
tokens
6% of context
Context Window Comparison
Anthropic: Claude Fable 5
1.0MSame
Anthropic: Claude Opus 4.8
1.0MSame
Anthropic: Claude Opus 4.7
1.0MSame