Claude Sonnet 4.5 pricing
$3.00 per 1M input tokens, $15.0 per 1M output tokens from Anthropic. 200k context window, 90% off cached input, 50% off via batch API.
Steady since we started tracking (Jul 13, 2026)
Quality by task
Benchmark-informed 0-100 estimates. Claude Sonnet 4.5's strongest category is coding & code review.
Cheaper alternatives for coding & code review
Models under $6.00/1M typical that stay within 10 quality points of Claude Sonnet 4.5's 95 score on this task.
Price a real prompt against Claude Sonnet 4.5
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Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.