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Claude Haiku 5.5 — Model Tracker

Claude Haiku 5.5 in the Model Tracker: every value read on the maker's own pages, with its day.

In inglese

Maker: Anthropic — platform.claude.com, read 2026-10-16
Released: 2026-10-07 — platform.claude.com, read 2026-10-16
Status: Generally available — platform.claude.com, read 2026-10-16
Retired: Not confirmed
Takes: Text, Image — platform.claude.com, read 2026-10-16
Returns: Text — platform.claude.com, read 2026-10-16
Open weights: Not confirmed: The cited maker pages do not state whether Claude Haiku 5.5 weights are open.
Licence: Not confirmed: The cited maker pages do not name a licence for Claude Haiku 5.5.
Context window: 1,000,000 tokens — platform.claude.com, read 2026-10-16
Longest answer: 128,000 tokens — platform.claude.com, read 2026-10-16
Knowledge cutoff: 2026-06 — platform.claude.com, read 2026-10-16
API price, input: USD 0.1 per 1M tokens — platform.claude.com, read 2026-10-16
API price, output: USD 0.5 per 1M tokens — platform.claude.com, read 2026-10-16
Where: Not confirmed: two readings disagree: ["api","cloud"] and ["api","app","cloud"]
Parameters: Not confirmed: The cited maker pages do not publish a parameter count for Claude Haiku 5.5.
Model card: https://www.anthropic.com/document/claude-haiku-5-5-system-card — platform.claude.com, read 2026-10-16

Sources