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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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overview changedmodels/sonnet-4-5/overview

Nearest release: v2.1.309, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
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First seen 24 Aug 2026 this site's first read of the page
Recorded edits13to this page, all time

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3535 
3636### Model IDs
3737 
38| Platform | Model ID |
39| :-------------------------------------------------------------------------------------------------------------------- | :------------------------------------------ |
40| Claude API | `claude-sonnet-4-5-20250929` |
41| Claude API alias | `claude-sonnet-4-5` |
42| [Amazon Bedrock (InvokeModel)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) | `anthropic.claude-sonnet-4-5-20250929-v1:0` |
43| [Google Cloud](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai) | `claude-sonnet-4-5@20250929` |
44| [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry) | `claude-sonnet-4-5` |
45| [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) | `claude-sonnet-4-5` |
38| Platform | Model ID |
39| :--------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------ |
40| Claude API | `claude-sonnet-4-5-20250929` |
41| Claude API alias | `claude-sonnet-4-5` |
42| [Amazon Bedrock (InvokeModel)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) | `anthropic.claude-sonnet-4-5-20250929-v1:0` |
43| [Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed) | `claude-sonnet-4-5@20250929` |
44| [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry) | `claude-sonnet-4-5` |
45| [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) | `claude-sonnet-4-5` |
46| [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed) | `claude-sonnet-4-5-20250929` |
4647 
4748### Pricing
4849 
from line 72
7172 
7273### Availability
7374 
74| Feature | Value |
75| :---------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
76| [Status](https://platform.claude.com/docs/en/about-claude/model-deprecations) | Deprecated |
77| Released | September 29, 2025 |
78| Deprecated | September 30, 2026 |
79| Retires | November 30, 2026 |
80| Platforms | Claude API, [Amazon Bedrock (InvokeModel)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy), [Google Cloud](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai), [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry), [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) |
75| Feature | Value |
76| :---------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
77| [Status](https://platform.claude.com/docs/en/about-claude/model-deprecations) | Deprecated |
78| Released | September 29, 2025 |
79| Deprecated | September 30, 2026 |
80| Retires | November 30, 2026 |
81| Platforms | Claude API, [Amazon Bedrock (InvokeModel)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy), [Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed), [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry), [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws), [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed) |
8182 
8283## Resources
8384 
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