During the opening of developers on Thursday, Anthropic launched two new AI models that start -ups are among the best industry, at least in terms of how popular benchmarks are rated.
Claude Opus 4 and Claude Sonnet 4, part of Anthropic’s new Claude 4 model family, can analyze large data sets, perform long -term horizons and take complex actions, according to the company. Both models were tuned to work well in programming work, says Anthropic, making it appropriate for writing and editing code.
Both users and users of the company’s free Chatbot applications will have access to Sonnet 4, but only users who pay will have access to Opus 4. For Anthropic’s API, via the Amazon platform and Google and Google AIT platform, Opus 4 will be priced at $ 15/$ 75 per million (input/exit) and Sonnet and Sonnet 4 to $ 3/$ 15 per million tokens (input/performance).
Brands are the raw pieces of data that operate AI models. One million brands are equivalent to about 750,000 words – about 163,000 words more than “war and peace”.
Anthropic’s Claude 4 models arrive as the company tries to significantly increase revenue. ReferencedThe uniform, founded by former researchers in the open, aims to earn $ 12 billion in 2027, from a predicted $ 2.2 billion this year. Human recently closed A $ 2.5 billion credit facility and increased billions of dollars from Amazon and other investors pending raising expenses related to the development of border models.
The opponents have not made it easy to maintain the position of the pole in the AI ​​race. While Anthropic launched a new AI model earlier this year, Claude Sonnet 3.7, along with a coding tool called Claude Code, competitors – including Openai and Google – ran to surpass the company with powerful models and Dev tools.
Anthropic plays to keep with Claude 4.
The most capable of the two models introduced today, Opus 4, can maintain a “focused effort” in many steps in a workflow, says Anthropic. Meanwhile, Sonnet 4-designed as “Drop-in replacement” for Sonnet 3.7-enclosed coding and mathematics compared to previous ANTHROPIC models, followed by the instructions, according to the company.
The Claude 4 family is also less likely than Sonnet 3.7 to participate in a “hacking reward”, humanity claims. The hacking reward, also known as gaming specifications, is a behavior where models take shortcuts and gaps to complete the work.
To be clear, these improvements have not given the world best Models from every point of reference. For example, while Opus 4 hits Gemini 2.5 Pro and Openai O3 and GPT-4.1 on Swe Bench has been verified, designed to evaluate a modeling coding skills, cannot exceed O3 in MMMU or GPQA Diamond, Chemistry.


Still, the man releases Opus 4 under stricter safeguards, including enhanced harmful content detectors and defenses in cyberspace. The company argues that its internal tests have found that Opus 4 can “substantially increase” one’s ability with the background of executives to obtain, produce or develop chemical, biological or nuclear weapons, reaching ASL-3 model “ASL-3”.
Both Opus 4 and Sonnet 4 are “hybrid” models, says Anthropic-axian for almost-stints answers and extensive thinking about deeper reasoning (to the extent that he can “think” and “think” as people understand these concepts). By activating the reasoning function, models can take more time to consider possible solutions to a given problem before answering.
As reasons for models, they will present a “user -friendly” summary of their thinking process, says Anthropic. Why not show the whole thing? In part to protect Anthropic’s “competitive advantages”, the company acknowledges a blog post plan provided at TechCrunch.
Opus 4 and Sonnet 4 can use multiple tools, such as search engines, at the same time alternating between reasoning and tools to improve the quality of their answers. They can also export and save the facts in the “memory” to handle the work more reliably, building what the man describes as “implicit knowledge” over time.
To make the models more friendly to the developer, Anthropic upgrades the aforementioned Claude Code. The Claude Code, which allows developers to perform specific tasks through Anthropic models directly from a terminal, are now integrated with IDE and offers an SDK that allows Devs to connect it to third -party applications.
CLAUDE’s SDK code, announced earlier this week, allows CLAUDE to be executed as under-processing in supported operating systems, providing a way to manufacture coding assistants and tools that operate with AI that exploit the capabilities of Claude models.
ANTHROPIC has released extensions and links of the CLAUDE Code for the VS Code, Microsoft Jetbrains and Github. The GitHub link allows developers to point out the Claude Code to respond to the reviews of the reviewer, as well as to try to correct the errors – or to otherwise modify the code.
AI models are still struggling to codify quality software. AI that creates code tends to introduce safety points vulnerable and errors, because of weaknesses In areas such as the ability to understand logical planning. However, their promise to enhance the productivity of coding is pushing companies – and developers – Adopt them quickly.
The anthropogenic, sensitized to it, promises more frequent model updates.
“We are … shifting to more frequent model updates, providing a steady flow of improvements that bring the potential to customers faster,” the starting plan wrote. “This approach keeps you at the peak as we constantly improve and enhance our models.”
