Parag Agrawal, former CEO of Twitter, has re-emerged on the tech stage with his ambitious new venture, Parallel Web Systems, a startup dedicated to reshaping how artificial intelligence interacts with the internet.
Agrawal&rsquo;s vision is bold, he believes the next major consumers of the web will not be humans, but AI agents. These intelligent systems, he argues, will depend on real-time web-scale infrastructure to fetch, verify, and organise data far faster than human capability.
Parallel offers deep research APIs and advanced search tools designed specifically for AI use, enabling hours of human research to be completed within minutes. The company claims its APIs outperform even the most advanced AI models, including GPT-5, in benchmark tests.
On OpenAI&rsquo;s BrowseComp benchmark, which measures multi-hop reasoning and web navigation, Parallel&rsquo;s APIs reached 58% accuracy, significantly higher than GPT-5&rsquo;s 41% and well above the 25% accuracy achieved by human participants working under time limits. On DeepResearch Bench, which evaluates quality and depth of AI-generated research, Parallel scored an 82% win rate, surpassing GPT-5&rsquo;s 66%.
According to Agrawal, the key lies in infrastructure designed &ldquo;for how machines consume information, not how humans browse.&rdquo; This stack from crawling and indexing to ranking, has been purpose-built for AI.
Already, startups, financial firms, insurers, and enterprise developers are using Parallel&rsquo;s tools for tasks ranging from lead research and coding assistance to claims verification and investment analysis. The company reports that millions of AI-driven research tasks are being executed daily through its platform.
Parallel&rsquo;s founding team includes engineers who previously worked at global tech giants such as Google, Stripe, Twitter, Airbnb, and Waymo. The startup has so far raised $30 million in funding from top Silicon Valley investors, including Khosla Ventures, Index Ventures, and First Round Capital.
Looking ahead, Parallel aims to expand into long-horizon AI agents capable of replacing entire teams&rsquo; workload within hours, continuous monitoring systems that scan the web for emerging signals, and programmable web queries to accelerate innovation.
For Agrawal, this is his first major leap since stepping away from Twitter in 2022, and it positions him at the heart of the rapidly evolving AI revolution.

Parag Agrawal’s AI Startup Challenges GPT-5

Former Twitter CEO’s new venture claims major edge in complex AI web research

Parag Agrawal’s AI Startup Challenges GPT-5

Former Twitter CEO’s new venture claims major edge in complex AI web research

August 18, 2025 | 17:06 IST