Anthropic launches Claude Opus 4: AI Model includes 7-hour memory, Amnesia fixes — Is it better than OpenAI's GPT-4.1?
In a move poised to reshape the artificial intelligence landscape, Anthropic has launched
Claude Opus 4
, its most advanced AI model to date. The announcement, made on Thursday, also included the unveiling of
Claude Sonnet 4
, forming part of the company's next-generation Claude 4 family. With the ability to autonomously perform complex tasks over extended periods, the Claude 4 models set a fresh benchmark for AI capabilities in both enterprise and creative applications.
Claude Opus 4 Redefines AI Performance
According to the company, Claude Opus 4 demonstrated the ability to autonomously work on an open-source codebase refactoring project for nearly seven hours at Rakuten—an unprecedented feat in the field of AI.
The performance represents a significant shift, transforming AI from a reactive assistant into a proactive collaborator, capable of maintaining task continuity throughout an entire workday.
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Anthropic claims Claude Opus 4 surpassed OpenAI's GPT-4.1 in key benchmarks. Notably, Opus 4 scored 72.5% on the SWE-bench, a challenging software engineering test, compared to GPT-4.1's 54.6%, according to the company's internal reports.
A Paradigm Shift Towards Reasoning-Centric AI
With AI usage expanding across industries, 2025 has seen a marked shift toward models built on reasoning capabilities rather than pattern recognition. The Claude 4 models lead this new wave by incorporating research, reasoning, and tool use into a seamless decision-making loop.
Unlike prior AI systems that required inputs to be fully processed before analysis, Claude Opus 4 can pause mid-task, seek out new information, and adjust its course—mirroring human cognitive behavior more closely than ever before.
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Anthropic's dual-mode architecture ensures speed and depth: basic queries are handled with minimal delay, while complex problems benefit from extended processing time. This hybrid capability addresses long-standing friction in AI usage.
Memory and Continuity: Solving the 'Amnesia' Problem
One of the standout features of the Claude 4 architecture is memory persistence. When granted permissions, the model can extract relevant data from files, summarize documents, and retain this context across user sessions. This advancement resolves what has historically been termed the "amnesia problem" in generative AI—where models failed to maintain continuity over long-term projects.
These structured memory functions allow Claude Opus 4 to gradually build domain expertise, enhancing its utility in legal research, software development, and enterprise knowledge management.
Competitive Landscape Heats Up
Anthropic's latest launch comes just weeks after OpenAI released GPT-4.1 and amid similar announcements from Google and Meta. While Google's Gemini 2.5 focuses on multimodal interaction and Meta's LLaMA 4 emphasizes long-context capabilities, Claude Opus 4 distinguishes itself in professional-grade coding, autonomous task completion, and long-duration performance.
The rivalry between these AI labs reflects a marketplace in flux. Each company is staking out unique technological territory, forcing enterprise users to weigh specializations over one-size-fits-all solutions.
Enterprise Integration and Revenue Surge
Anthropic has expanded Claude's utility through tools like Claude Code, now integrated with GitHub Actions, VS Code, and JetBrains. Developers can view suggested edits in real-time, allowing for deeper collaboration between human coders and AI agents.
Notably, GitHub has chosen Claude Sonnet 4 as the default engine for its next-generation coding agent, a decision that underscores confidence in the Claude 4 series' reliability and depth.
Anthropic also confirmed that its annualized revenue reached USD 2 billion in Q1 2025, doubling from the previous quarter. The firm recently secured a USD 2.5 billion credit line, further strengthening its financial position in the AI arms race.
FAQs
What is Claude Opus 4?
Claude Opus 4 is Anthropic's most advanced AI model to date, capable of long-duration autonomous task completion. It's part of the new Claude 4 family, alongside Claude Sonnet 4, and is designed for enterprise-grade reasoning, coding, and creative applications.
What sets Claude Opus 4 apart from previous models?
Claude Opus 4 introduces memory persistence, allowing it to retain context across sessions—solving the so-called 'amnesia problem.' It also autonomously worked for nearly seven hours on a complex coding project, demonstrating an unprecedented level of continuity and cognitive-like behavior.
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