Claude Haiku 4.5
anthropic-claude-4-5-haiku
Fast Claude model for responsive assistance, classification, and lightweight agents
Specification
most-agreed values
Context
200K
Max output
64K
Released
2025-10-15
Knowledge cutoff
2025-02-28
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.00
Output
$5.00
Cache read
$1.00
Cache write
$1.25
Quality
7 benchmarks · 1 source
Composite
44th
percentile of 334 scored models
Rank
186 / 334
±0.06 sd
Evidence
7 × 1
one source, or fewer than 3 benchmarks
Effort range
9.5
points between effort settings
reasoning50th2/4 bench
math55th4/7 bench
knowledge10th1/1 bench
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| MATH level 5 | 96.4 ±0.5 | 32k | Epoch AI | 2025-10-22 |
| ↳ | 86.9 ±0.8 | default | Epoch AI | 2025-10-16 |
| Settings differ by 9.5 points on this benchmark. | ||||
| GPQA diamond | 71.2 ±3.2 | 32k | Epoch AI | 2025-10-22 |
| ↳ | 60.5 ±2.8 | default | Epoch AI | 2025-10-16 |
| Settings differ by 10.7 points on this benchmark. | ||||
| OTIS Mock AIME 2024-2025 | 66.7 ±7.1 | 32k | Epoch AI | 2025-10-22 |
| ↳ | 35.8 ±6.2 | default | Epoch AI | 2025-10-16 |
| Settings differ by 30.9 points on this benchmark. | ||||
| FrontierMath-Tier-4-2025-07-01 | 2.1 ±2.1 | 32k | Epoch AI | 2025-10-22 |
| Chess Puzzles | 8.0 ±2.7 | 32k | Epoch AI | 2026-07-16 |
| FrontierMath-v1 | 4.1 ±1.2 | default | Epoch AI | 2025-10-16 |
| ↳ | 3.0 ±1.4 | 32k · 2 runs | Epoch AI | 2025-10-22 |
| Settings differ by 1.1 points on this benchmark. | ||||
| SimpleQA Verified | 13.2 ±1.1 | default | Epoch AI | 2026-08-10 |
| ↳ | 12.6 ±1.1 | 32k | Epoch AI | 2026-08-27 |
| Settings differ by 0.6 points on this benchmark. | ||||
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 2 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| digitalocean | $1.00 | $5.00 | $1.00 | $1.25 | 200K | 64K | — |
| sap-ai-core | $1.00 | $5.00 | $0.10 | $1.25 | 200K | 64K | — |