2026-07-30 16:47 UTC · anthropic/model-deprecations · live page
Summary by gemma-4-12b. It may be wrong; the diff below is what actually changed. Raw: 3d0ebde166-anthropic-model-deprecations.diff · commit 3d0ebde166
diff --git a/snapshots/anthropic/model-deprecations.md b/snapshots/anthropic/model-deprecations.mdindex b1946b3..a08c12b 100644--- a/snapshots/anthropic/model-deprecations.md+++ b/snapshots/anthropic/model-deprecations.md@@ -59,5 +59,5 @@ At some point, Anthropic hopes to make past models publicly available again. In ## Model status -Claude Mythos Preview (`claude-mythos-preview`) will be retired on July 21, 2026. To migrate to Claude Mythos 5 (`claude-mythos-5`), see the migration guide.+Claude Mythos Preview (`claude-mythos-preview`) is deprecated. To migrate to Claude Mythos 5 (`claude-mythos-5`), see the migration guide. Current and recently retired models are listed in the following table with their status:@@ -66,4 +66,5 @@ Current and recently retired models are listed in the following table with their |---|---|---|---| | claude-fable-5 | Active | N/A | Not sooner than June 9, 2027 |+| claude-opus-5 | Active | N/A | Not sooner than July 24, 2027 | | claude-opus-4-8 | Active | N/A | Not sooner than May 28, 2027 | | claude-opus-4-7 | Active | N/A | Not sooner than April 16, 2027 |@@ -189,5 +190,5 @@ Anthropic occasionally deprecates request parameters that no longer apply to cur | Parameter | Status | Behavior | Recommended replacement | |---|---|---|---|-| `temperature`, `top_p`, `top_k` | Deprecated (Claude Opus 4.7 and later) | Returns a 400 error when set to a non-default value on Claude Opus 4.7 and later, including Claude Opus 4.8, and on Claude Sonnet 5. | Omit and use prompting to guide model behavior. |+| `temperature`, `top_p`, `top_k` | Deprecated (Claude Opus 4.7 and later) | Returns a 400 error when set to a non-default value on Claude 4.7 and later models and Claude Mythos Preview. | Omit and use prompting to guide model behavior. | For migration steps, see the migration guide.