Claude Haiku 5.5
The fast, low-cost model in Anthropic's Claude 5.5 family. Prompts over 100K tokens cost more ($0.50 / $2.50 per million).
- Made by
- Anthropic
- Released
- Type
- Fast & cheap
- Status
- Live
- How to get it
- Claude apps and the Claude API
- Good for
- Quick summariesHigh-volume tasksCustomer support
What it is
Haiku is the smallest and fastest model in each Claude generation. Haiku 5.5 joined Opus 5.5 and Sonnet 5.5 on October 7, 2026.
What it costs
$0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100K tokens. Longer prompts cost $0.50 / $2.50.
What it means for you
Small models like this power the “instant” side of AI: quick replies, sorting and tagging lots of items, and first-pass summaries. If you run an automation hundreds of times a day, Haiku keeps it fast and affordable.
Use cases this model is good for
How to summarize a long PDF or contract with AI (without missing the important parts)
You have a 60-page report or contract and need the key points, numbers and risks today, without reading every page.
Best pick: ClaudeUp to 2h savedHow to clean messy spreadsheet data with AI
Your spreadsheet has duplicate rows, five spellings of the same company and three date formats, and the report is due tomorrow.
Best pick: ChatGPTAbout 1h saved
