Every line, version by version

Claude Sonnet versions compared

Every Claude Sonnet version in one table: input, output and cached prices, context window, benchmark scores, and what a month of your usage costs on each one.

The short version

  • Sonnet 5 costs 33% less than Claude Sonnet 4.5 per output token
  • Sonnet 5 is the cheapest version in this line at $6.00 per million blended tokens
  • 2 of 3 versions in this line are now legacy models

Every Claude Sonnet version in one table

Prices are read live from the provider pricing pages, so this table cannot go stale.

VersionStatusReleasedInputOutputCachedContextBlended /1MSample /mo
Sonnet 5LatestCheapest
5
Price your own usage
Active—$2.00$10.00$0.2001,000K$6.00$7.00
Claude Sonnet 4.6
4.6
Listed in Anthropic's Legacy models section; superseded by Sonnet 5.
Price your own usage
Legacy—$3.00$15.00$0.300200K$9.00$10.50
Claude Sonnet 4.5
4.5
Listed in Anthropic's Legacy models section; superseded by Sonnet 5.
Price your own usage
Legacy—$3.00$15.00$0.300200K$9.00$10.50

Sample cost = 1M input + 500K output tokens per month at list price. A model with a long-context band is priced on that band — the rule is printed in the row. Use the calculator below for your own workload.

What changed at each step

Only the differences we can prove from the pricing and score records — a price that moved, a context window that grew, a benchmark both versions report.

  1. Claude Sonnet 4.6→Sonnet 5
    • Input price down 33% ($3.00 → $2.00)
    • Output price down 33% ($15.00 → $10.00)
    • Cached price down 33% ($0.300 → $0.200)
    • Context window up (200K → 1,000K)
  2. Claude Sonnet 4.5→Claude Sonnet 4.6

    Nothing we can prove changed

Benchmark scores

We have not verified a score for this line yet — so we do not publish one. Numbers we cannot trace do not belong on this site.

Which version to use

  • Top of the line: Sonnet 5

What your usage would cost

Adjust the monthly volume — every version of the line recomputes instantly.

Sonnet 5
$180/mo
Claude Sonnet 4.6
$270/mo
Claude Sonnet 4.5
$270/mo

List price only: cached input, batch discounts and off-peak rates are not included. The sample column prices 1M input + 500K output tokens per month.

Sources

Compare two versions of Claude Sonnet

All version series