14 verified records · 1 awaiting source recheck

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Search exact model IDs, endpoints, parameters, error symptoms, and provider-announced shutdowns. Every record links to its official source and shows when it was last checked.

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4 records from Anthropic.

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AnthropicClaude APIhigh

claude-opus-4-1-20250805: model retirement on August 5, 2026

Anthropic documents a model retirement affecting claude-opus-4-1-20250805 on August 5, 2026. The source lists claude-opus-4-8 as a replacement identifier.

model retirementSearch repositories and deployment configuration for claude-opus-4-1-20250805. The official source lists claude-opus-4-8 as a replacement identifier. Test the migration against current provider documentation before production.

AnthropicClaude APIhigh

Claude Opus 4.7 and later reject non-default sampling parameters

Anthropic has deprecated temperature, top_p, and top_k on Claude Opus 4.7 and later; non-default values return an HTTP 400 error.

breaking behaviorStop sending temperature, top_p, and top_k for affected models. Express tone, variability, and formatting requirements in the system prompt instead.

AnthropicClaude APIhigh

Claude Sonnet 5 changes thinking defaults and token counts

Claude Sonnet 5 enables adaptive thinking by default, removes manual thinking budgets, rejects non-default sampling parameters, and tokenizes the same text into roughly 30% more tokens.

breaking behaviorRemove manual thinking budgets and non-default sampling parameters, rely on adaptive thinking, and use Anthropic's token-counting API to recalibrate limits and cost controls.

AnthropicClaude APIhigh

/v1/experimental/generate_prompt, /v1/experimental/improve_prompt, and 1 more: api sunset on August 17, 2026

Anthropic documents a api sunset affecting /v1/experimental/generate_prompt, /v1/experimental/improve_prompt, and 1 more on August 17, 2026. No replacement identifier passed the evidence gate.

api sunsetSearch repositories and deployment configuration for /v1/experimental/generate_prompt, /v1/experimental/improve_prompt, and /v1/experimental/templatize_prompt. No replacement identifier passed the evidence gate. Follow the linked provider documentation for the required request or behavior change.