Anthropic model deprecations — retirement dates and replacements
. Source check dates are recorded per model below.
Select your models and download retirement dates.
Anthropic has 16 models scheduled for retirement. The next is claude-opus-4-5-20251101 on 2026-11-24 (in 32 days). Every date below is taken from Anthropic’s own deprecation page and re-checked weekly.
Is the Claude API (Anthropic) up right now? Reachable from all 4 regions
Last successful probe Oct 23, 05:16 UTC · every 5 minutes from 4 regions · this page is rebuilt about every 30 minutes
Live Claude API (Anthropic) status, outages in the last 72 hours and latency by region
Which Anthropic models are being retired, and when?
| Model | Shutdown | Replacement | Source |
|---|---|---|---|
claude-opus-4-5-20251101 | 2026-11-24 | — | source Source last checked: 2026-10-19. |
claude-sonnet-4-5-20250929 | 2026-11-30 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-opus-4-6 | 2027-02-05 | — | source Source last checked: 2026-10-19. |
claude-sonnet-4-6 | 2027-02-17 | — | source Source last checked: 2026-10-19. |
claude-opus-4-7 | 2027-04-16 | — | source Source last checked: 2026-10-19. |
claude-opus-4-8 | 2027-05-28 | — | source Source last checked: 2026-10-19. |
claude-fable-5 | 2027-06-09 | — | source Source last checked: 2026-10-19. |
claude-mythos-5 | 2027-06-09 | — | source Source last checked: 2026-10-19. |
claude-sonnet-5 | 2027-06-30 | — | source Source last checked: 2026-10-19. |
claude-opus-5 | 2027-07-24 | — | source Source last checked: 2026-10-19. |
claude-fable-5-1 | 2027-09-01 | — | source Source last checked: 2026-10-19. |
claude-mythos-5-1 | 2027-09-01 | — | source Source last checked: 2026-10-19. |
claude-opus-5-5 | 2027-09-22 | — | source Source last checked: 2026-10-19. |
claude-sonnet-5-5 | 2027-09-28 | — | source Source last checked: 2026-10-19. |
claude-haiku-5-5 | 2027-10-07 | — | source Source last checked: 2026-10-19. |
claude-mythos-preview | — | — | source Source last checked: 2026-10-19. |
claude-opus-4-5-20251101 — Anthropic retires this model on 2026-11-24, and no replacement has been named. Source.
claude-sonnet-4-5-20250929 — Anthropic retires this model on 2026-11-30. The published replacement is claude-sonnet-5-5. It was announced on 2026-09-30. Source.
claude-opus-4-6 — Anthropic retires this model on 2027-02-05, and no replacement has been named. Source.
claude-sonnet-4-6 — Anthropic retires this model on 2027-02-17, and no replacement has been named. Source.
claude-opus-4-7 — Anthropic retires this model on 2027-04-16, and no replacement has been named. Source.
claude-opus-4-8 — Anthropic retires this model on 2027-05-28, and no replacement has been named. Source.
claude-fable-5 — Anthropic retires this model on 2027-06-09, and no replacement has been named. Source.
claude-mythos-5 — Anthropic retires this model on 2027-06-09, and no replacement has been named. Source.
claude-sonnet-5 — Anthropic retires this model on 2027-06-30, and no replacement has been named. Source.
claude-opus-5 — Anthropic retires this model on 2027-07-24, and no replacement has been named. Source.
claude-fable-5-1 — Anthropic retires this model on 2027-09-01, and no replacement has been named. Source.
claude-mythos-5-1 — Anthropic retires this model on 2027-09-01, and no replacement has been named. Source.
How much notice does Anthropic give before shutting a model down?
Across 20 Anthropic models where both the announcement and the shutdown date are published, the median gap is 63 days. The range runs from 60 to 189 days, and the tightest case on record is claude-3-haiku-20240307 at 60 days (2026-02-19 → 2026-04-20). These intervals are computed from Anthropic’s published dates. Compare notice periods across providers
How fast is the Anthropic API once you migrate?
Measured edge latency of the Anthropic API host by region. These measurements describe the endpoint, not the replacement model’s inference speed.
| Region | p50 TTFB | Uptime |
|---|---|---|
| Asia (Tokyo) | 235 ms | 100% |
| Europe (Germany) | 200 ms | 100% |
| South America (São Paulo) | 195 ms | 100% |
| US (Central) | 93 ms | 100% |
Edge latency over the last 24 hours. Full Anthropic latency detail
Which Anthropic models have already been retired?
| Model | Retired | Replacement | Source |
|---|---|---|---|
claude-haiku-4-5-20251001 | 2026-10-15 | — | source Source last checked: 2026-10-19. |
claude-opus-4-1-20250805 | 2026-08-05 | claude-opus-4-8 | source Source last checked: 2026-10-19. |
claude-opus-4-20250514 | 2026-06-15 | claude-opus-4-8 | source Source last checked: 2026-10-19. |
claude-sonnet-4-20250514 | 2026-06-15 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-3-haiku-20240307 | 2026-04-20 | claude-haiku-4-5-20251001 | source Source last checked: 2026-10-19. |
claude-3-7-sonnet-20250219 | 2026-02-19 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-3-5-haiku-20241022 | 2026-02-19 | claude-haiku-4-5-20251001 | source Source last checked: 2026-10-19. |
claude-3-opus-20240229 | 2026-01-05 | claude-opus-4-8 | source Source last checked: 2026-10-19. |
claude-3-5-sonnet-20240620 | 2025-10-28 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-3-5-sonnet-20241022 | 2025-10-28 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-2.0 | 2025-07-21 | claude-opus-4-8 | source Source last checked: 2026-10-19. |
claude-2.1 | 2025-07-21 | claude-opus-4-8 | source Source last checked: 2026-10-19. |
claude-3-sonnet-20240229 | 2025-07-21 | claude-sonnet-5-5 | source Source last checked: 2026-10-19. |
claude-1.0 | 2024-11-06 | claude-haiku-4-5-20251001 | source Source last checked: 2026-10-19. |
claude-1.1 | 2024-11-06 | claude-haiku-4-5-20251001 | source Source last checked: 2026-10-19. |
How is this calendar maintained?
A scheduled job re-reads Anthropic’s official deprecation page every week and rewrites this table from it. Entries that cannot be traced to a published source are not shown at all, which is why every row carries a source link. Dates change: providers extend deadlines and occasionally bring them forward, so this page reflects what the vendor documented at the last check, not a prediction.
All providers: full deprecation calendar · Latency data under CC BY 4.0: JSON API