Claude Sonnet 4 (retired, except on Bedrock and Google Cloud) pricing observed change: $3/1M in, $3/1M out, $6/1M cached → $3/1M in, $15/1M out, $3.75/1M cached.
The change
What changed
Before: $3/1M in, $3/1M out, $6/1M cached
↓
After: $3/1M in, $15/1M out, $3.75/1M cached
Evidence
Verbatim from source
"Claude Sonnet 4: $3 / MTok, $15 / MTok output, $7.5 / MTok cache"
Trust signals
How we verified this
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Pricing verification
Verification method
🕐
17h ago
Last reconciled
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Primary citation
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