OSWorld
osworld-7a4974c9·6 events·first seen 20d agoAliases: OSWorld
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Anthropic Releases Computer Use Capability for Claude 3.5 Sonnet
Anthropic has launched a public beta of computer use for Claude 3.5 Sonnet, enabling the model to control a computer by interpreting screenshots and issuing pixel-level cursor and keyboard commands. The model achieves 14.9% on the OSWorld benchmark, roughly double the next-best AI model's 7.7%, though well below human-level performance of 70-75%. Anthropic trained the model on a small set of simple software tools and found it generalized rapidly to broader computer interaction. Safety analysis confirmed the capability remains at AI Safety Level 2, with prompt injection identified as a primary near-term risk.
LearnWeak: Automated Domain Specialization for Small Computer-Use Agents via Weakness-Targeted Synthesis
LearnWeak is an annotation-free framework for specializing small computer-use agents (CUAs) in specific software domains without deploying large expert models. It uses a stronger reference agent to identify weaknesses in a smaller student agent, synthesizes targeted tasks, and applies an error-aware training objective that disentangles planning from execution errors. On OSWorld, LearnWeak achieves gains of ~11 percentage points over 7B-8B baseline CUAs across eight domains. The work demonstrates that student-aware data synthesis substantially outperforms naive large-scale data generation for domain specialization.
Anthropic Releases Claude Sonnet 4.6 with 1M Token Context, Improved Computer Use, and Coding Capabilities
Anthropic has released Claude Sonnet 4.6, positioned as a major upgrade over Sonnet 4.5 with improvements across coding, computer use, long-context reasoning, and agent planning. The model features a 1M token context window in beta and is now the default on claude.ai Free and Pro plans at unchanged pricing ($3/$15 per million tokens). Notably, users preferred Sonnet 4.6 over the prior Opus 4.5 frontier model 59% of the time in coding tasks, and the model shows significant gains on OSWorld computer-use benchmarks alongside improved prompt injection resistance. Safety evaluations found no major alignment concerns and rated it as safe or safer than prior Claude models.
Anthropic Acquires Vercept to Advance Claude's Computer Use Capabilities
Anthropic has acquired Vercept, a team specializing in AI perception and interaction for computer use tasks, whose co-founders include Kiana Ehsani, Luca Weihs, and Ross Girshick. Vercept will wind down its external product and join Anthropic to push computer use capabilities further. The announcement coincides with the launch of Claude Sonnet 4.6, which achieved 72.5% on the OSWorld benchmark—up from under 15% in late 2024—approaching human-level performance on tasks like navigating spreadsheets and completing web forms. This follows Anthropic's earlier acquisition of Bun and is part of a broader strategy to build agentic, multi-step task capabilities into Claude.
Anthropic Releases Claude Sonnet 4.5: Top Coding and Computer-Use Model with Agent SDK
Anthropic has released Claude Sonnet 4.5, claiming it is the best coding model and strongest model for building complex agents, with a 61.4% score on OSWorld (up from 42.2% for Sonnet 4) and state-of-the-art performance on SWE-bench Verified. The release is accompanied by major product upgrades including checkpoints in Claude Code, a native VS Code extension, a Claude Agent SDK giving developers access to the same infrastructure powering Claude Code, and new context editing and memory tools in the Claude API. Pricing is unchanged from Sonnet 4 at $3/$15 per million input/output tokens. Early enterprise customers including Cursor, GitHub Copilot, Devin, Canva, and Figma report significant gains in coding, agentic, and long-context tasks.
Anthropic introduces computer use capability, upgraded Claude 3.5 Sonnet, and Claude 3.5 Haiku
Anthropic announced three major developments: an upgraded Claude 3.5 Sonnet with significant coding improvements (SWE-bench Verified rising from 33.4% to 49.0%, surpassing all publicly available models including reasoning models), a new Claude 3.5 Haiku that matches Claude 3 Opus performance at Haiku-tier speed, and a public beta of 'computer use' — a capability allowing Claude to control computers by viewing screens, moving cursors, clicking, and typing. Computer use is available via the Anthropic API, Amazon Bedrock, and Google Cloud Vertex AI, with early adopters including Replit, The Browser Company, and Cognition. Both safety institutes (US AISI and UK AISI) conducted pre-deployment testing, and the model was assessed as remaining within ASL-2 under Anthropic's Responsible Scaling Policy.