Claude Sonnet 4.6
Anthropic · Mid
Anthropic's best balance of speed and intelligence. 1M context window. Sonnet pricing has held flat at $3/$15 across all 4.x releases.
- Strengths
- The best speed-to-intelligence balance in the line, with a 1M-token context.
- Best for
- Production apps, coding assistants and agents that need quality without Opus prices.
- Limitations
- Not as deep as Opus on the very hardest reasoning tasks.
Input / 1M
$3.00
Output / 1M
$15.00
Cached input / 1M
$0.3
Context window
1M
Where it sits
249th-cheapest mid model
by blended $/Mtok among 262 listed mid models
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 (Feb 2026)
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 |
|---|---|---|---|---|---|
| 17 Feb 2026 | $3.00 | $15.00 | $0.3 | anthropic.com/pricing |