Global top-tier collaborative work platform Notion is accelerating its embrace of a hybrid model ecosystem. On March 2, 2026, Notion co-founder Akshay Kothari announced that Notion Custom Agents (customized AI agents) have officially integrated the open-source weight model MiniMax M2.5, developed by MiniMax, and are now available as an experimental feature to users worldwide.

This move not only breaks Notion's long-standing monopoly on model choices by top closed-source models like Claude and GPT, but also marks the official entry of domestic large models into the core of global mainstream productivity tools.

Key Highlights: Exceptional Performance and "Affordable" Costs

The integration of MiniMax M2.5 provides over 100 million Notion users with a more attractive option:

  • Independent Listing: In Notion's model selection dropdown, MiniMax M2.5 now stands alongside top models such as Claude Sonnet 4.6 and Gemini 3 Pro.

  • High Cost-Effectiveness: For daily tasks such as document organization, schedule synchronization, and automation, the cost of calling M2.5 is much lower than that of closed-source models, earning it the nickname of “productivity must-have” in the AI world.

  • Agent-Native Design: MiniMax M2.5 adopts the RLAIF framework optimized for Agentic Workflow (AI agent workflow), showing extremely stable performance when handling complex task decomposition and multi-step execution.

Technical Endorsement: The First Open-Source Weight Model to Enter Notion

MiniMax M2.5 has drawn attention in Silicon Valley since its release in February 2026:

  • Strong Performance: In hard-core programming and tool invocation benchmarks such as SWE-Bench, M2.5's performance even surpasses some closed-source flagship models, with a reasoning speed of up to 100 tokens/second.

  • Vertical Office Optimization: This model deeply simulates real office scenarios such as Excel financial modeling, Word deep writing, and PPT logical generation during training, perfectly matching Notion’s “all-in-one workspace” characteristics.

Industry Insight: From “All-Round Brain” to “Specialized Division”

Akshay Kothari's introduction of the open-source model reflects Notion's core strategy in 2026: Model Agnosticism. Users are no longer locked into one supplier but can freely switch based on their task requirements:

  • For in-depth literary creation, use Claude Opus 4.6;

  • For large-scale data cleaning and logic execution, choose MiniMax M2.5.

This “hybrid power” model will help Notion further solidify its position as the “digital brain” for individuals and enterprises in the AGI era.