Our newest model, Claude Opus 4.5, is available today. It’s intelligent, efficient, and the best model in the world for coding, agents, and computer use. It’s also meaningfully better at everyday tasks like deep research and working with slides and spreadsheets.

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Claude Haiku 4.5: Our fastest and most intelligent Haiku model with near-frontier performance. Available with a 200k token context window. Claude Opus 4.5 represents our most intelligent model, combining maximum capability with practical performance.

1 month ago - Anthropic released Claude Opus 4.5 this morning, which they call “best model in the world for coding, agents, and computer use”. This is their attempt to retake the crown for best coding model after significant challenges from OpenAI’s ...

We released our most powerful frontier model to date. Read our blog post for more information: Introducing Claude Opus 4.5.

1 week ago - “What’s interesting about this release, to me at least, is that it is not necessarily like: ‘Oh, everybody needs to now shift to Opus,’ but it does enable this new tier of possibilities,” Albert said. “Now we’re entering this landscape where you actually do have three models from us that all fit different needs along this curve: you have the Haiku model that we just released a month ago. You have Sonnet 4.5, which was a month and a half ago. And now this completes the fold.” · In addition to the new model, Anthropic is also announcing two updates to the Claude Developer Platform that go hand-in-hand with the Opus 4.5 release: An upgraded plan mode for Claude Code and Claude Code support in the desktop app.

1 month ago - Claude Opus 4.5 will be available to Copilot Pro, Pro+, Business, and Enterprise users, priced at a promotional 1x premium request multiplier through December 5, 2025.

4 days ago - Claude is a series of large language models developed by Anthropic. The first generation, Claude 1, was released in March 2023, and the latest, Claude Opus 4.5, in November 2025. The data for these models comes from sources such as Internet text, data from paid contractors, and Claude users.

1 month ago - Announcing Anthropic's newest model, Claude Opus 4.5, in Microsoft Foundry. Opus 4.5 is now available in public preview in Microsoft Foundry, GitHub Copilot paid plans, and Microsoft Copilot Studio.

For developers interested in building AI solutions that demand frontier intelligence, Opus 4.5 is available on the Claude Developer Platform natively, and in Amazon Bedrock, Google Cloud’s Vertex AI, and Microsoft Foundry.

November 20, 2025 - Anthropic: A video of all versions of Claude, from the original to 4.5, trying to recreate claude.ai ... "We are reserving Claude 4 Sonnet...for things that are quite significant leaps, which are coming soon" - Dario Amodei - Anthropic CEO ... Claude Opus 4.1 Released!

3 weeks ago - Claude Opus 4.5, released November 24, 2025, is Anthropic's most capable AI model yet. It excels at coding, autonomous agents, and complex reasoning

Claude Opus 4.5, released just weeks after Claude Opus 4.1, demonstrates the rapid pace of innovation in generative AI. With Databricks, enterprises don’t have to worry about trying to keep up.

3 weeks ago - When Anthropic released Claude Opus 4.5 on 24 November 2025, it did so into an unusually crowded sky. Google’s Gemini 3 Pro had arrived a…

3 days ago - The number of customers spending more than $100,000 annually jumped eightfold year-over-year. The rapid release of Opus 4.5 — just weeks after Haiku 4.5 in October and Sonnet 4.5 in September — reflects broader industry dynamics.

1 month ago - Anthropic has launched Opus 4.5, the latest version of its flagship model, with new integrations into Chrome and Excel.

Claude Sonnet 4.5 makes this possible. We're releasing it along with a set of major upgrades to our products. In Claude Code, we've added checkpoints—one of our most requested features—that save your progress and allow you to roll back instantly to a previous state.

1 month ago - The startup unveiled its Claude Sonnet 4.5 model in late September, followed by its Claude Haiku 4.5 model in October. "The amount that we're releasing to the market and the feedback loops that we're generating from it just make me so unbelievably ...

Introducing Claude Opus 4.5: the best model in the world for coding, agents, and computer use.