Coasty Achieves #1 Ranking on OSWorld Benchmark with 82% Score, Positioning AI Agent as Virtual Assistant Alternative
Key Takeaways
- ▸Coasty achieved an 82% score on the OSWorld benchmark, ranking #1 and outperforming competitors using Claude Opus 4.5, GPT-5, and other leading models
- ▸The AI agent can perform real computer tasks including web browsing, spreadsheet work, form filling, and email management with full audit trails
- ▸Pricing starts at $0 for a free tier and $50/month for the Plus tier, positioned as 50x cheaper than traditional virtual assistants
Summary
Coasty, an AI-powered computer agent, has claimed the top position on the OSWorld benchmark with an 82% score, surpassing notable competitors including Agent S3 powered by Claude Opus 4.5 and GPT-5 (72.6%), UiPath Screen Agent (67.1%), and Anthropic's Claude Sonnet 4.5 (62.9%). The OSWorld benchmark measures real-world computer task completion across browsers, office applications, and system operations, making it a rigorous test of an AI agent's ability to perform practical work.
Coasty markets itself as a full-stack AI employee capable of performing tasks that traditionally require human virtual assistants, including competitor research, spreadsheet analysis, form filling, email management, and web browsing. The platform operates on isolated virtual machines for security, with complete audit logging of every action taken. According to the company, Coasty costs approximately $50 per month for its Plus tier, positioning it as significantly cheaper than human virtual assistants that typically cost $3,000-$5,000 monthly.
The AI agent features self-correction capabilities, allowing it to detect and recover from mistakes autonomously. Coasty provides real-time visibility into its operations, enabling users to watch the agent work as it clicks, types, and navigates through applications. The platform targets startup founders, operations managers, solopreneurs, and agency owners looking to automate repetitive administrative tasks without additional headcount.
Coasty offers tiered pricing starting from a free tier, with paid plans ranging from $19 to $100 monthly for individual users, and custom enterprise pricing. The company claims users can save 18-24 hours monthly and up to $2,950 per month compared to hiring human assistants, though these figures represent maximum potential savings rather than guaranteed outcomes.
- Each session runs in isolated virtual machines with self-correction capabilities and complete action logging for security and transparency
Editorial Opinion
Coasty's #1 OSWorld ranking is impressive, but the real test will be whether businesses trust an AI agent with genuine work responsibilities beyond controlled benchmarks. The 82% score suggests meaningful capability, yet the gap to human-level performance (implied to be near 100%) remains significant for critical tasks. The pricing comparison to virtual assistants is compelling on paper, though it assumes the AI can truly replace human judgment and adaptability across diverse, unpredictable scenarios—a claim that will require extensive real-world validation.
