Claude Haiku 4.5
Fast Claude model for responsive assistance, classification, and lightweight agents
AnthropicTextUncommon
Claude Haiku 4.5
Fast Claude model for responsive assistance, classification, and lightweight agents
claude-haiku-4-5-20251001- Type
- Text
- Quality
- 62 · Top 38% on the Epoch Capabilities Index
- Context window
- 200,000 tokens
- Max output
- 64,000 tokens
- Input price
- $1.00 / 1M tokens
- Output price
- $5.00 / 1M tokens
- Cache read
- $0.10 / 1M tokens
- Cache write
- $1.25 / 1M tokens
- Released
- Oct 15, 2025
- Knowledge cutoff
- Feb 2025
- Takes in
- Text, Image, PDF
- Puts out
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- File attachments
- Yes
- Access
- Paid
- License
- Proprietary
- Rarity
- Uncommon
- Set number
- 677/1044
Weights aren’t public. Use is governed by Anthropic’s terms. Specs from models.dev, last changed Oct 19, 2026. Official source: docs.anthropic.com.