Mindcraft-CE/Andy-4.2-Air

VISIONConcurrent Unit Cost:1Model Size:4.5BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Mar 26, 2026Architecture:Transformer0.0K Featherless Exclusive Cold

Mindcraft-CE/Andy-4.2-Air is a 4.5 billion parameter language model from Mindcraft CE, built on the Qwen3.5 architecture with Gated Deltanet attention. It is specifically optimized for playing Minecraft, demonstrating the ability to achieve a full set of diamond armor with zero human interaction. This model features vision capabilities for deep game state comprehension and supports a context length of up to 1 million tokens, making it highly efficient for its specialized task.

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Overview

Mindcraft-CE/Andy-4.2-Air is a 4.5 billion parameter model developed by Mindcraft CE, utilizing a new Qwen3.5 architecture with Gated Deltanet attention. This design makes it more efficient and intelligent than previous iterations, capable of running on a single RTX 3090 with 256k tokens of context at 8-bit quantization.

Key Capabilities

  • Minecraft Automation: The first local model capable of acquiring a full set of diamond armor in Minecraft without human intervention.
  • Enhanced Vision: Features stronger multimodal capabilities for deeper comprehension of the game state.
  • Efficiency: Runs efficiently on consumer-grade hardware (e.g., single RTX 3090) due to its optimized architecture.
  • Large Context Window: Supports a context length of up to 1 million tokens, with stable performance up to 120 messages.

Limitations

  • Building Tasks: Not advised for building tasks within Minecraft, as it tends to produce extensive output without executing actions.
  • Code Generation: Not suitable as a general-purpose code model.

Recommended Use Cases

  • Automated Minecraft Gameplay: Ideal for scenarios requiring autonomous interaction and progression within Minecraft.
  • Game State Analysis: Useful for applications needing deep understanding and response to complex game environments.