Is Anthropic Claude claude-haiku-5-5 end-of-life?

As of 2026-10-12: No. Anthropic Claude claude-haiku-5-5 is supported; its end-of-life date is 2027-10-07 (in 360 days).

Anthropic Claude release cycles

Status of every cycle as of 2026-10-12, newest first: supported, security-only (active support ended), eol or unknown.

CycleStatus
claude-haiku-5-5supported
claude-sonnet-5-5supported
claude-opus-5-5supported
claude-mythos-5-1supported
claude-fable-5-1supported
claude-opus-5supported
claude-sonnet-5supported
claude-mythos-5supported
claude-fable-5supported
claude-opus-4-8supported
claude-opus-4-7supported
claude-sonnet-4-6supported
claude-opus-4-6supported
claude-opus-4-5-20251101supported
claude-haiku-4-5-20251001supported
claude-sonnet-4-5-20250929security-only
claude-opus-4-1-20250805eol
claude-sonnet-4-20250514eol
claude-opus-4-20250514eol
claude-3-7-sonnet-20250219eol
claude-3-5-haiku-20241022eol
claude-3-5-sonnet-20241022eol
claude-3-5-sonnet-20240620eol
claude-3-haiku-20240307eol
claude-3-opus-20240229eol
claude-3-sonnet-20240229eol
claude-2.1eol
claude-instant-1.2eol
claude-2.0eol
claude-1.3eol
claude-instant-1.1eol
claude-1.2eol
claude-1.1eol
claude-instant-1.0eol
claude-1.0eol

Dates, LTS and versions from the API

This page shows the status only. The signed API answer has every cycle with its release, support and end-of-life dates, LTS flag and latest version: GET /v1/eol/claude ($0.001 per call, paid with x402 in USDC; no account, no API key).

Source

Data from endoflife.date (https://endoflife.date), Copyright 2020 endoflife.date contributors, MIT License.

Snapshot eol-20261011T184823Z-fb3e9d0a, data as of 2026-10-11T18:48:23Z, source last checked 2026-10-11T18:48:23.000Z.

Licences and attribution: /licences. How snapshots are made and verified: /provenance.

Data is provided as is, without warranty of any kind. Payments are final. Every dataset is normalised (modified) from the sources named here, and no source endorses this service.