# Command A+ (218B-A25B)

> Cohere's open sparse MoE model scales the Command A parallel transformer block to 218B total parameters while keeping 25B active per token.

| Property | Value |
| --- | --- |
| Lab | Cohere (Canada) |
| Released | 2026-05-20 |
| Decoder type | Sparse MoE |
| Family | Sparse MoE |
| Scale | 218B total, 25B active/token (11.5% active) |
| Context window | 128K input, 64K output tokens |
| Attention | 16:1 GQA with 3:1 sliding-window/global attention |
| Layer mix | 24 sliding-window + 8 global GQA/MoE |
| KV cache / token (bf16) | 128 KiB (Moderate) |
| License | Apache License 2.0 |

**Key detail:** Runs attention and MoE in parallel, which Cohere reports gives similar quality to a sequential block with better throughput.

## Architecture concepts

- [Grouped-Query Attention (GQA)](https://llm-atlas-7or.pages.dev/concepts/gqa.md): Several query heads share one key/value head, shrinking the KV cache with little quality loss.
- [Mixture of Experts (MoE)](https://llm-atlas-7or.pages.dev/concepts/moe.md): Many feed-forward experts, but a router sends each token to only a few of them.
- [No Positional Embeddings (NoPE)](https://llm-atlas-7or.pages.dev/concepts/nope.md): Some or all layers drop explicit positional encodings and rely on the causal mask.

## Benchmark (Artificial Analysis Intelligence Index)

- AA Intelligence Index v5.0: total 6.2 (Knowledge Work 0.6, Coding 0.2, Science 1, General 23.2)
- AA Intelligence Index v4.3.2: total 13.1 (General 26.4, Scientific 6.1, Coding 19.5, Agents 0.5)

## Links

- Architecture diagram: https://sebastianraschka.com/llm-architecture-gallery/images/architectures/command-a-plus.webp
- config.json: https://huggingface.co/CohereLabs/command-a-plus-05-2026-w4a4/blob/main/config.json
- Tech report: https://cohere.com/blog/command-a-plus
- Source card (source of truth): https://sebastianraschka.com/llm-architecture-gallery/#card-command-a-218b-a25b
- Web page: https://llm-atlas-7or.pages.dev/models/command-a-218b-a25b/
- JSON: https://llm-atlas-7or.pages.dev/api/models/command-a-218b-a25b.json

_Data from Sebastian Raschka's LLM Architecture Gallery (https://sebastianraschka.com/llm-architecture-gallery/). Synced 2026-11-04._