claude 4 - Brave Search

anthropic.com › news › claude-4

Introducing Claude 4

Claude Opus 4 and Sonnet 4 are hybrid models offering two modes: near-instant responses and extended thinking for deeper reasoning. The Pro, Max, Team, and Enterprise Claude plans include both models and extended thinking, with Sonnet 4 also available to free users.

opencv.org › home › news › claude 4: the next generation of ai assistants

Claude 4 - Introduction, Benchmark & Applications

May 29, 2025 - Discover Claude 4, Anthropic's revolutionary AI assistant family. Learn about Claude Opus 4 and Sonnet 4 capabilities, access methods, real-world applications, and how Constitutional AI makes it safer and more reliable.

Videos

r/ClaudeAI on Reddit: Claude Sonnet 4 has been buffed overnight!

Claude Just Got a Big Update (Opus 4.1) - YouTube

Claude 4 is not what you think... - YouTube

Claude 4 + Claude Code + Strands Agents in Action | AWS Show & ...

Coding with Claude 4 is actually insane - YouTube

Claude 4 is here. It's kinda nuts. - YouTube

reddit.com › r/claudeai › introducing claude 4

r/ClaudeAI on Reddit: Introducing Claude 4

April 20, 2025 -

Today, Anthropic is introducing the next generation of Claude models: Claude Opus 4 and Claude Sonnet 4, setting new standards for coding, advanced reasoning, and AI agents. Claude Opus 4 is the world’s best coding model, with sustained performance on complex, long-running tasks and agent workflows. Claude Sonnet 4 is a drop-in replacement for Claude Sonnet 3.7, delivering superior coding and reasoning while responding more precisely to your instructions.

Claude Opus 4 and Sonnet 4 are hybrid models offering two modes: near-instant responses and extended thinking for deeper reasoning. Both models can also alternate between reasoning and tool use—like web search—to improve responses.

Both Claude 4 models are available today for all paid plans. Additionally, Claude Sonnet 4 is available on the free plan.

Read more here: https://www.anthropic.com/news/claude-4

Here's benchmarks Benchmark | Claude Opus 4 | Claude Sonnet 4 | Claude Sonnet 3.7 | OpenAI o3 | OpenAI GPT-4.1 | Gemini 2.5 Pro (Preview 05-06) | Agentic coding (SWE-bench Verified 1,5) | 72.5% / 79.4% | 72.7% / 80.2% | 62.3% / 70.3% | 69.1% | 54.6% | 63.2% | Agentic terminal coding (Terminal-bench 2,5) | 43.2% / 50.0% | 35.5% / 41.3% | 35.2% | 30.2% | 30.3% | 25.3% | Graduate-level reasoning (GPQA Diamond 5) | 79.6% / 83.3% | 75.4% / 83.8% | 78.2% | 83.3% | 66.3% | 83.0% | Agentic tool use (TAU-bench, Retail/Airline) | 81.4% / 59.6% | 80.5% / 60.0% | 81.2% / 58.4% | 70.4% / 52.0% | 68.0% / 49.4% | — | Multilingual Q&A (MMMLU 3) | 88.8% | 86.5% | 85.9% | 88.8% | 83.7% | — | Visual reasoning (MMMU validation) | 76.5% | 74.4% | 75.0% | 82.9% | 74.8% | 79.6% | HS math competition (AIME 2025 4,5) | 75.5% / 90.0% | 70.5% / 85.0% | 54.8% | 88.9% | — | 83.0%

Renewed my Claude subscription to test these out. Looking forward to it

ultralytics.com › blog › anthropics-claude-4-features-whats-new-and-improved

Anthropic’s Claude 4 new features | Ultralytics

Rather than focusing solely on speed or output quality, Anthropic’s latest models, Claude Opus 4 and Claude Sonnet 4, aim to support sustained reasoning, improved context handling, and more dependable performance.

ai-sdk.dev › cookbook › guides › claude-4

Guides: Get started with Claude 4

Claude 4 is Anthropic's most advanced model family to date, offering exceptional capabilities across reasoning, instruction following, coding, and knowledge tasks. Available in two variants—Sonnet and Opus—Claude 4 delivers state-of-the-art ...

datacamp.com › blog › claude-4

Claude 4: Tests, Features, Access, Benchmarks & More | DataCamp

May 23, 2025 - Early reports show fewer navigation errors and better performance across app development tasks. It’s not as strong as Opus 4 when it comes to complex reasoning or long-term task planning, but for most workflows, it’s more than sufficient. Claude Opus 4 is the flagship model in the Claude 4 series.

Talk with Claude, an AI assistant from Anthropic

anthropic.com › news › claude-opus-4-5

Introducing Claude Opus 4.5

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.

aws.amazon.com › blogs › aws › claude-opus-4-anthropics-most-powerful-model-for-coding-is-now-in-amazon-bedrock

Introducing Claude 4 in Amazon Bedrock, the most powerful models for coding from Anthropic | Amazon Web Services

May 23, 2025 - Claude Opus 4 Claude Opus 4 is the most advanced model to date from Anthropic, designed for building sophisticated AI agents that can reason, plan, and execute complex tasks with minimal oversight.

Find elsewhere

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medium.com › @servifyspheresolutions › claude-4-is-live-how-its-changing-developer-productivity-forever-e9d188ddb2dd

Claude 4 Is Live: How It’s Changing Developer Productivity Forever | by Servifyspheresolutions | Medium

May 25, 2025 - Released on May 22, 2025, Claude Opus 4 and Claude Sonnet 4 represent the fourth generation of Anthropic’s AI models.

aws.amazon.com › about-aws › whats-new › 2025 › 05 › anthropics-claude-4-foundation-models-amazon-bedrock

Anthropic's Claude 4 foundation models now in Amazon Bedrock - AWS

Both Opus 4 and Sonnet 4 are hybrid reasoning models oﬀering two modes: near-instant responses and extended thinking for deeper reasoning. Claude Opus 4: Opus 4 is Anthropic’s most powerful Claude model to date and Anthropic’s benchmarks show it is the best coding model available, excelling at autonomously managing complex, multi-step tasks with accuracy.

platform.claude.com › docs › en › about-claude › models › whats-new-claude-4-5

What's new in Claude 4.5 - Claude Docs

Extended autonomous operation: Sonnet 4.5 can work independently for hours while maintaining clarity and focus on incremental progress. The model makes steady advances on a few tasks at a time rather than attempting everything at once. It provides fact-based progress updates that accurately reflect what has been accomplished. Context awareness: Claude now tracks its token usage throughout conversations, receiving updates after each tool call.

anthropic.com › news › claude-sonnet-4-5

Introducing Claude Sonnet 4.5

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.

blog.promptlayer.com › claude-4

Claude 4 Haiku, Sonnet, Opus Release Date & Features:

May 23, 2025 - Claude Sonnet 4, the successor to Sonnet 3.7, offers a balance of performance and cost for high-volume applications—excelling at code reviews, bug fixes, customer support agents, and AI assistants—with hybrid reasoning modes and summaries ...

em360tech.com › tech-articles › what-claude-4-everything-you-need-know-about-anthropics-new-ai-models

What is Claude 4? Everything You Need to Know About Anthropic's New AI Models | EM360Tech

May 23, 2025 - Claude 4 is a family of large language models developed by Anthropic. The family currently includes the flagship Opus 4 model and Claude Sonnet model.

anthropic.com › claude › sonnet

Claude Sonnet 4.5

Claude Sonnet 4.5 amplifies GitHub Copilot's core strengths. Our initial evals show significant improvements in multi-step reasoning and code comprehension—enabling Copilot's agentic experiences to handle complex, codebase-spanning tasks better.

anthropic.com › claude › opus

Claude Opus 4.5

It better leverages memory to maintain ... sustained quality that ongoing enterprise projects demand. Claude Opus 4.5 is state-of-the-art on tests of real-world software coding and agentic capabilities....

cnbc.com › 2025 › 05 › 22 › claude-4-opus-sonnet-anthropic.html

Amazon-backed Anthropic debuts Claude 4 Opus and Sonnet AI models

May 22, 2025 - The company said the two models, called Claude Opus 4 and Claude Sonnet 4, are defining a "new standard" when it comes to AI agents and "can analyze thousands of data sources, execute long-running tasks, write human-quality content, and perform ...

anthropic.com › news › claude-opus-4-1

Claude Opus 4.1

Today we're releasing Claude Opus 4.1, an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning.

reddit.com › r/claudeai › claude 4 opus is the most tasteful coder among all the frontier models.

r/ClaudeAI on Reddit: Claude 4 Opus is the most tasteful coder among all the frontier models.

March 1, 2025 -

I have been extensively using Gemini 2.5 Pro for coding-related stuff and O3 for everything else, and it's crazy that within a month or so, they look kind of obsolete. Claude Opus 4 is the best overall model available right now.

I ran a quick coding test, Opus against Gemini 2.5 Pro and OpenAI o3. The intention was to create visually appealing and bug-free code.

Here are my observations

Claude Opus 4 leads in raw performance and prompt adherence.
It understands user intentions better, reminiscent of 3.6 Sonnet.
High taste. The generated outputs are tasteful. Retains the Opus 3 personality to an extent.
Though unrelated to code, the model feels nice, and I never enjoyed talking to Gemini and o3.
Gemini 2.5 is more affordable in pricing and takes much fewer API credits than Opus.
One million context length in Gemini is undefeatable for large codebase understanding.
Opus is the slowest in time to first token. You have to be patient with the thinking mode.

Check out the blog post for complete comparison analysis with codes: Claude 4 Opus vs. Gemini 2.5 vs. OpenAI o3

The vibes with Opus are the best; it has a personality and is stupidly capable. But too pricey; it's best used with the Claude app, the API cost will put a hole in your pocket. Gemini will always be your friend with free access and the cheapest SOTA model.

Would love to know your experience with Claude 4 Opus and how you would compare it with o3 and Gemini 2.5 pro in coding and non-coding tasks.

Basically it’s the price, otherwise everyone would be using it.

I am paying 200 USD for the 20x max to be able to use Claude Code. I am usually running multiple agents at once so the 100USD plan was not enough and it was throtting me. Claude Opus 4 is so much more capable in Claude Code than in any other tool. I love it and its a true game changer.