Source Intelligence
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Writing the entries · 2/4 steps 470 findings $18.91 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Search the documentation

5 pages for claude-3-5-sonnet.

Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.

model-deprecations Claude Developer Platform · in the page about-claude/model-deprecations …------------------- | ----------------------- | | October 28, 2025 | `claude-3-5-sonnet-20240620` | `claude-sonnet-4-6` | | October 28, 2025 | `claude-3-5-sonnet-20241022` | `claude-sonnet-4-6`… overview Claude Developer Platform · in the page release-notes/overview …025 * We announced the deprecation of the Claude Sonnet 3.5 models (`claude-3-5-sonnet-20240620` and `claude-3-5-sonnet-20241022`). These models will be retired on October 28, 2025. We recommend migr… claude-haiku-3-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-haiku-3-5 …es API. The most up-to-date model is available with the model string "claude-3-5-sonnet-20241022". Claude can provide the information in these tags if asked but it does not know any other details of t… claude-sonnet-3-5 Claude Developer Platform · in the page release-notes/system-prompts/claude-sonnet-3-5 …face or via an API using the Anthropic messages API and model string "claude-3-5-sonnet-20241022". Claude can provide the information in these tags if asked but it does not know any other details of t… Schema Reference Model Context Protocol · in the page specification/2025-06-18/schema …this as a substring of a model name; for example:</p> <ul> <li><code>claude-3-5-sonnet</code> should match <code>claude-3-5-sonnet-20241022</code></li> <li><code>sonnet</code> should match <code>clau…