Google's Gemini Spark, the agentic AI assistant unveiled at I/O 2026 for background task automation across Google apps and connected services, remains restricted to paid tiers as of early October 2026. It rolled out first to AI Ultra subscribers, then expanded in July to the $19.99 AI Pro plan for U.S. users, while free accounts and the lower AI Plus tier stay excluded amid ongoing model access limits that further prioritize paid plans. This pricing structure reflects competitive positioning against rival agents and usage-based constraints, with no confirmed timeline for free-tier inclusion despite global rollout efforts outside restricted regions like the EEA. Traders should monitor upcoming Google announcements or subscription policy shifts for potential catalysts.