isitdeprecated.com
collectors 1/5 ok (openrouter, litellm, gemini, anthropic) last sync state DEGRADED models 2,985 events 19,470

RETIRING IN 30 DAYS

Sunset scheduled for 2026-11-30, published in the provider's own documentation. The provider names claude-sonnet-5-5 as the replacement. The identifier still resolves today.

state=dying sunset=2026-11-30 days_remaining=30 severity=critical sources=anthropic,docs,litellm evidence_tier=endpoint confirmed_by_endpoint=anthropic documented_by_provider=docs replacement=claude-sonnet-5-5 corroborated=yes divergent_fields=none checked=2026-10-31 05:09Z

anthropic/claude-sonnet-4-5-20250929

Vendor: anthropic. Tracked by 3 of 5 sources.

What each source reports

SourceIDContext Max outIn $/Mtok Out $/MtokSunset
anthropic nativeclaude-sonnet-4-5-20250929200,00064,000———
docsclaude-sonnet-4-5-20250929————2026-11-30
litellmanthropic.claude-sonnet-4-5-20250929-v1:0200,00064,000$3$152026-11-30
 endpoint = the provider's own machine-readable API, the strongest evidence. provider docs = the provider's own documentation, read by a model — first-party content, inferred reading. Unlabelled rows are third-party catalogs. Where sources disagree both values are shown rather than silently reconciled.

Change history

SeverityChangeWhat Detected
mediumdeprecatedbedrock/us-gov-east-1/claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 162 days2026-10-28
mediumdeprecatedbedrock/us-gov-west-1/claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 162 days2026-10-28
mediumdeprecatedclaude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 162 days2026-10-28
lowmodifiedbedrock/us-gov-east-1/claude-sonnet-4-5-20250929-v1:0: max_output_tokens raised 8,192 to 64,0002026-10-28
lowmodifiedbedrock/us-gov-west-1/claude-sonnet-4-5-20250929-v1:0: max_output_tokens raised 8,192 to 64,0002026-10-28
mediumdeprecatedbedrock/us-gov-east-1/claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 162 days)2026-10-28
mediumdeprecatedbedrock/us-gov-west-1/claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 162 days)2026-10-28
mediumdeprecatedclaude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 162 days)2026-10-28
highmodifiedclaude-sonnet-4-5-20250929: context_tokens cut 1,000,000 to 200,0002026-10-10
mediumdeprecatedanthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedau.anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedeu.anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedglobal.anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedjp.anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedus.anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 181 days2026-10-09
mediumdeprecatedanthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
mediumdeprecatedau.anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
mediumdeprecatedeu.anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
mediumdeprecatedglobal.anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
mediumdeprecatedjp.anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
mediumdeprecatedus.anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 181 days)2026-10-09
highmodifiedclaude-sonnet-4-5-20250929: context_tokens cut 1,000,000 to 200,0002026-10-07
lowmodifiedclaude-sonnet-4-5-20250929: capabilities gained server_tools2026-10-06
highdeprecatedclaude-sonnet-4-5-20250929: deprecation announced for 2026-11-30 — in 60 days2026-10-01
lowaddednew model claude-sonnet-4-5-202509292026-09-30
highdeprecatedclaude-sonnet-4-5-20250929: retires 2026-11-30 (in 61 days)2026-09-30
inforepricedanthropic.claude-sonnet-4-5-20250929-v1:0: input_price_per_mtok $3.30/Mtok to $3.00/Mtok2026-09-24
inforepricedanthropic.claude-sonnet-4-5-20250929-v1:0: output_price_per_mtok $16.50/Mtok to $15.00/Mtok2026-09-24
inforepricedanthropic.claude-sonnet-4-5-20250929-v1:0: cache_read_price_per_mtok $0.33/Mtok to $0.30/Mtok2026-09-24
lowrepricedanthropic.claude-sonnet-4-5-20250929-v1:0: input_price_per_mtok $3.00/Mtok to $3.30/Mtok2026-09-24
lowrepricedanthropic.claude-sonnet-4-5-20250929-v1:0: output_price_per_mtok $15.00/Mtok to $16.50/Mtok2026-09-24
lowrepricedanthropic.claude-sonnet-4-5-20250929-v1:0: cache_read_price_per_mtok $0.30/Mtok to $0.33/Mtok2026-09-24
lowmodifiedclaude-sonnet-4-5-20250929: context_tokens raised 200,000 to 1,000,0002026-09-17
highdeprecatedclaude-sonnet-4-5-20250929: deprecation announced for 2026-09-29 — in 39 days2026-08-21
highdeprecatedclaude-sonnet-4-5-20250929: retires 2026-09-29 (in 39 days)2026-08-21
lowmodifiedbedrock/us-gov-east-1/claude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search2026-08-12
lowmodifiedbedrock/us-gov-west-1/claude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search2026-08-12
lowmodifiedclaude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search2026-08-12
lowmodifiedanthropic.claude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search2026-08-12
lowmodifiedau.anthropic.claude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search2026-08-12