Exa has launched Agent Ultra, a subagent swarm deep research API that beats Opus 5.5, GPT-6 Astra and Perplexity on four benchmarks. The system runs for up to three hours to exhaustively build lists and enrich entities. Default cost is 20 USD per run. https://www.marktechpost.com/2026/09/26/exa-launches-agent-ultra-a-subagent-swarm-deep-research-api-built-for-exhaustive-list-building/ #AIagent #AI #GenAI #AgenticAI
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