Claude Sonnet 4
retiredAnthropic · Mid
Original Claude 4 Sonnet. Same $3/$15 pricing carried through all subsequent Sonnet 4.x releases.
- Strengths
- Set the Sonnet price point that held across the whole 4.x line.
- Best for
- Legacy Sonnet integrations.
- Limitations
- Older generation; newer Sonnets are better at the same price.
Input / 1M
$3.00
Output / 1M
$15.00
Cached input / 1M
$0.3
Context window
200K
Where it sits
950% above the mid median
blended $/Mtok across 262 mid models
Output costs 5× input
$3.00 in / $15.00 out per 1M
Cached input saves 90%
$0.3 vs $3.00 per 1M fresh
Held flat since launch (May 2025)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 22 May 2025 | $3.00 | $15.00 | $0.3 | anthropic.com/pricing |