Claude Opus 4.6
legacyAnthropic · Frontier
First Opus with a 1M context window at standard pricing. Same $5/$25 as Opus 4.5.
- Strengths
- First Opus with a 1M-token window, at the post-cut Opus price.
- Best for
- Long-context Opus work where the newest releases aren't required.
- Limitations
- Older Opus generation; later versions improve quality at the same price.
Input / 1M
$5.00
Output / 1M
$25.00
Cached input / 1M
$0.5
Context window
1M
Where it sits
19th-cheapest frontier model
by blended $/Mtok among 24 listed frontier models
176% above the frontier median
blended $/Mtok across 24 frontier models
Output costs 5× input
$5.00 in / $25.00 out per 1M
Cached input saves 90%
$0.5 vs $5.00 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 |
|---|---|---|---|---|---|
| 5 Feb 2026 | $5.00 | $25.00 | $0.5 | anthropic.com/pricing |