RETIRING IN 159 DAYS
Sunset scheduled for 2027-04-08, reported by a third-party catalog. The identifier still resolves today.
state=dying sunset=2027-04-08 days_remaining=159 severity=high sources=litellm evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=single-source divergent_fields=none checked=2026-10-31 05:09Z
gov-east-1/anthropic.claude-sonnet-4-5-20250929
Vendor: gov-east-1. Tracked by 1 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| litellm | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0 | 200,000 | 64,000 | $3.6 | $18 | 2027-04-08 |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| medium | deprecated | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: deprecation announced for 2027-04-08 — in 162 days | 2026-10-28 |
| low | modified | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: max_output_tokens raised 8,192 to 64,000 | 2026-10-28 |
| medium | deprecated | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: retires 2027-04-08 (in 162 days) | 2026-10-28 |
| low | modified | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: capabilities gained tool_search | 2026-08-12 |
| low | modified | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: capabilities gained parallel_tool_use_config | 2026-07-02 |
| low | repriced | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: input_price_per_mtok $3.30/Mtok to $3.60/Mtok | 2026-06-02 |
| low | repriced | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: output_price_per_mtok $16.50/Mtok to $18.00/Mtok | 2026-06-02 |
| low | repriced | bedrock/us-gov-east-1/anthropic.claude-sonnet-4-5-20250929-v1:0: cache_read_price_per_mtok $0.33/Mtok to $0.36/Mtok | 2026-06-02 |