Claude Code

Set Up Claude Haiku 5.5, the 10x Cheaper Claude Model

Claude Haiku 5.5 costs a tenth of the old Haiku per token and reads a million tokens at once. What it costs, the one-line switch, the two catches that change your bill, and three cheap things to build with it this week

2min read
1prompts to copy
3numbered steps
5sections

On October 7, Anthropic released Claude Haiku 5.5, which it calls its cheapest, fastest and most capable small model. Input costs ten cents per million tokens, down from a dollar on Haiku 4.5.

Here's what it costs, how to switch in one line, the two catches, and what it's actually good for.

What it costs

Haiku 4.5Haiku 5.5
Input, per million tokens$1$0.10 (prompts up to 100K tokens)
Output, per million tokens$5$0.50 (prompts up to 100K tokens)
Context window200K tokens1M tokens
Max output64K tokens128K tokens

It's also the fastest model in Claude's current lineup, and the Batch API takes another 50% off.

Free, for your email

Get the full setup steps + the copy-paste setup prompt

The rest of this guide (4 more sections, 1 copy-paste prompt) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.

Unlocks: Step 1: switch in one line · The two catches · Three cheap things to build this week · Sources

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