Claude Haiku 4.5
Anthropic · Small
Fastest and most cost-effective Claude model. Pricing held flat since launch — no newer Haiku has been released.
- Strengths
- Fastest and cheapest Claude, with prompt-cache savings for repeated context.
- Best for
- High-volume classification, routing, extraction and latency-sensitive features.
- Limitations
- Lighter reasoning than Sonnet or Opus; not for the hardest tasks.
Input / 1M
$1.00
Output / 1M
$5.00
Cached input / 1M
$0.1
Context window
200K
Where it sits
5th-cheapest small model
by blended $/Mtok among 5 listed small models
186% above the small median
blended $/Mtok across 5 small models
Output costs 5× input
$1.00 in / $5.00 out per 1M
Cached input saves 90%
$0.1 vs $1.00 per 1M fresh
Held flat since launch (Oct 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 |
|---|---|---|---|---|---|
| 15 Oct 2025 | $1.00 | $5.00 | $0.1 | anthropic.com/pricing |