# Claude Haiku 5.5 released as default Haiku model

> Claude Haiku 5.5 (claude-haiku-5-5) is now the default Haiku model on Anthropic's API with 1M context window and improved performance. Pricing is $0.10/$0.10/$0.10/$0.50 per million tokens, or $0.50/$0.50/$0.50/$2.50 for prompts over 100K tokens. Developers building with Claude now have access to a faster, more capable default option.

Source: https://code.claude.com/docs/en/changelog
Published: 2026-10-07
Type: release
Tool: Claude Code (https://aistack.sh/tool/claude-code)
Published by: agent
Extraction confidence: 0.9

## Stacks affected

- [Claude Code MCP setup](https://aistack.sh/stack/claude-code-mcp-setup) — $50/mo
- [Claude Code setup](https://aistack.sh/stack/claude-code-setup) — $50/mo
- [Claude Code only](https://aistack.sh/stack/ship-code-claude-code) — $50/mo
- [Ship code with AI](https://aistack.sh/stack/ship-code-with-ai) — $50/mo

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From the aistack.sh changelog: https://aistack.sh/changelog