Stacks/Knowledge work
Notion Agent (sixth-generation harness)
Notion rebuilt its agent harness for long-running, cheaper work: a queue-backed worker loop that can run a task for 24 hours, native context compaction, offloaded tool results, computer and browser use, and a separate safety-review model. An Auto router picks models from Anthropic, OpenAI, and open-weight providers; users can also connect a ChatGPT plan. The company reports Auto matching frontier-model quality at about 90% lower average cost on its knowledge-work comparisons.
- Use case
- Knowledge-work agents and Custom Agents inside Notion, including tasks that can now run for more than 24 hours
- Category
- Knowledge work
- Team size
- not stated
- Orchestrator / framework
- The sixth-generation Notion Agent harness runs every session on a dedicated service with a queue-backed worker loop so work survives restarts. Auto, the model router, sends each task to a model that balances quality, speed, and cost, and can re-route if a model is not making meaningful progress. A separate 'Review for me' model checks whether an action is safe before the agent takes it.
- Memory
- Agents compact long conversations, using each model provider's native compaction where possible. Large tool results are offloaded instead of flooding the context window. Notion MCP can sync memories to Notion.
- Evals
- Notion says Auto was compared across 20+ common use cases and delivered similar results to Opus 5.5 and Astra at about 90% lower average cost. Custom Agent runs cost about 30% less in testing after the rebuild. New models are evaluated before Auto starts using approved providers.
- Observability
- A forthcoming AI Command Center gives admins usage dashboards, spending limits, and agent governance, and members a view of their own usage. Infra uptime is stated as greater than 99.9%.
- Monthly cost
- not stated
- Models
- Observability tools
- Other tools
- MCPComputer and browser use (agents can write short scripts)Bring-your-own-key (Enterprise private alpha)
- Source
- https://www.notion.com/blog/notion-ai-more-for-less
Akshay Kothari · Oct 18, 2026