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Release notes

What's new in Claude

Anthropic's official release notes. Claude apps: the website, desktop and phone apps. Claude Code: Claude's coding assistant. Claude API: what developers use to build Claude into their own products.

All 1,230 Claude436 Codex132 Gemini516 Grok53 Mistral68 DeepSeek22 Meta3

Everything Claude Code Claude apps New models Claude API

Claude API

NewerPage 5 of 5

Dec 17, 2024

Models API: Query available models, validate model IDs, and resolve model aliases to their canonical model IDs

Message Batches API: Process large batches of messages asynchronously at 50% of the standard API cost. Token counting API: Calculate token counts for Messages before sending them to Claude. Prompt Caching: Reduce costs by up to 90% and latency by up to 80% by caching and reusing prompt content. PDF support: Process PDFs to analyze both text and visual content within documents. Java SDK (alpha) Go SDK (alpha)

Claude APIDec 4, 2024

We've added the ability to group by API key on the Usage and Cost pages of the Developer Console

We've added two new Last used at and Cost columns and the ability to sort by any column on the API keys page of the Developer Console.

Claude APINov 21, 2024

We've released the Admin API, allowing users to programmatically manage their organization's resources

Claude APINov 20, 2024

We've updated our rate limits for the Messages API

We've replaced the tokens per minute rate limit with new input and output tokens per minute rate limits. Read more in Rate limits. We've added support for tool use in the Workbench.

Claude APINov 13, 2024

We've added PDF support for all Claude Sonnet 3.5 models

We've retired the Claude 1 and Instant models

Claude Haiku 3.5 is now available on the Claude API as a text-only model

Claude APINov 1, 2024

We've added PDF support for use with the new Claude Sonnet 3.5

Read more in PDF support. We've also added token counting, which allows you to determine the total number of tokens in a Message prior to sending it to Claude.

Claude APIOct 22, 2024

We've added Anthropic-defined computer use tools to our API for use with the new Claude Sonnet 3.5

Read more in Computer use tool. Claude Sonnet 3.5, our most intelligent model yet, just got an upgrade and is now available on the Claude API.

Claude APIOct 8, 2024

The Message Batches API is now available in beta

Process large batches of queries asynchronously in the Claude API for 50% less cost. Read more in Batch processing. We've loosened restrictions on the ordering of user/assistant turns in our Messages API. We've deprecated the Build and Scale plans in favor of a standard feature suite (formerly referred to as Build), along with additional features that are available through sales.

Claude APIOct 3, 2024

We've added the ability to disable parallel tool use in the API

Set disable_parallel_tool_use: true in the tool_choice field to ensure that Claude uses at most one tool. Read more in Parallel tool use.

Claude APISep 10, 2024

We've added Workspaces to the Developer Console

Workspaces allow you to set custom spend or rate limits, group API keys, track usage by project, and control access with user roles. Read more in our blog post.

Claude APISep 4, 2024

We announced the deprecation of the Claude 1 models

We've added support for usage of the SDK in browsers by returning CORS headers in the API responses

Set dangerouslyAllowBrowser: true in the SDK instantiation to enable this feature.

Claude APIAug 19, 2024

8,192-token outputs on Claude Sonnet 3.5 are out of beta and no longer require the…

Claude APIAug 14, 2024

Prompt caching is now available as a beta feature in the Claude API

Cache and re-use prompts to reduce latency by up to 80% and costs by up to 90%.

Claude APIJul 15, 2024

Generate outputs up to 8,192 tokens in length from Claude Sonnet 3.5 with the new anthropic-beta:…

Claude APIJul 9, 2024

Automatically generate test cases for your prompts using Claude in the Developer Console

Compare the outputs from different prompts side by side in the new output comparison mode in the Developer Console.

Claude APIJun 27, 2024

View API usage and billing broken down by dollar amount, token count, and API keys in the new Usage and Cost…

View your current API rate limits in the new Rate Limits tab in the Developer Console.

Claude APIJun 20, 2024

Claude Sonnet 3.5, our most intelligent model yet, is now available across the Claude API, Amazon Bedrock,…

Claude APIMay 30, 2024

Tool use is out of beta across the Claude API, Amazon Bedrock, and Vertex AI, with no beta header required

Claude APIMay 10, 2024

Our prompt generator tool is now available in the Developer Console

Prompt Generator makes it easy to guide Claude to generate a high-quality prompts tailored to your specific tasks. Read more in our blog post.