Claude Haiku 5.5 becomes Claude Code's default Haiku model

What changed

Version 2.1.293 adds Claude Haiku 5.5 (claude-haiku-5-5) as the default Haiku model on the Anthropic API, with a 1M-token context window. It costs $0.10 input and $0.50 output per million tokens, rising to $0.50 and $2.50 for prompts over 100K tokens. Anthropic announced the model the same day.

Who it affects

Claude Code users on the Anthropic API who use Haiku directly or through subagents, and API developers.

What to do

Update Claude Code to pick up Haiku 5.5. If you send long prompts to Haiku, budget for the higher rate above 100K tokens.

Source: https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#21293