Claude Sonnet 4.5

$3
Input / MTok
$15
Output / MTok
$0.3
Cache read / MTok

API identifier claude-sonnet-4-5 · Context 200,000 tokens · vendor pricing page

Full price sheet

MetricUSD / million tokens
Input$3
Output$15
Cache read$0.3
Cache write (5m)$3.75
Cache write (1h)$6
Batch input$1.5
Batch output$7.5

Price history

ObservedMetric Price
2026-08-07 12:06:21 Input $3
2026-08-07 12:06:21 Output $15
2026-08-07 12:06:21 Cache read $0.3
2026-08-07 12:06:21 Cache write (5m) $3.75
2026-08-07 12:06:21 Cache write (1h) $6
2026-08-07 12:06:21 Batch input $1.5
2026-08-07 12:06:21 Batch output $7.5

Current prices are free and always will be. The full series — every observation since we started watching, which nobody can reconstruct after the fact — is the part Pro pays for.

Compare with

Models at a similar price point.

ModelInputOutput
Claude Sonnet 4.6 $3$15 compare →
Kimi K3 $3$15 compare →
Command R+ (04-2024) $3$15 compare →
GPT-5.4 $2.5$15 compare →
GPT-5.3 Codex $1.75$14 compare →
GPT-5.2 $1.75$14 compare →