[Cohere] Enable Cohere MoE (#43143)

Signed-off-by: Terrencezzj <terrence@cohere.ai>

docs/models/supported_models.md

@@ -378,7 +378,7 @@ th {
 | `BloomForCausalLM` | BLOOM, BLOOMZ, BLOOMChat | `bigscience/bloom`, `bigscience/bloomz`, etc. | | ✅︎ |
 | `ChatGLMModel`, `ChatGLMForConditionalGeneration` | ChatGLM | `zai-org/chatglm2-6b`, `zai-org/chatglm3-6b`, `thu-coai/ShieldLM-6B-chatglm3`, etc. | ✅︎ | ✅︎ |
 | `CohereForCausalLM`, `Cohere2ForCausalLM` | Command-R, Command-A | `CohereLabs/c4ai-command-r-v01`, `CohereLabs/c4ai-command-r7b-12-2024`, `CohereLabs/c4ai-command-a-03-2025`, `CohereLabs/command-a-reasoning-08-2025`, etc. | ✅︎ | ✅︎ |
-| `Cohere2MoeForCausalLM` | Command (MoE) | (model checkpoints loaded with `trust_remote_code=True`) | ✅︎ | ✅︎ |
+| `Cohere2MoeForCausalLM` | Command-A+ | `CohereLabs/command-a-plus-05-2026`, etc. | ✅︎ | ✅︎ |
 | `CwmForCausalLM` | CWM | `facebook/cwm`, etc. | ✅︎ | ✅︎ |
 | `DbrxForCausalLM` | DBRX | `databricks/dbrx-base`, `databricks/dbrx-instruct`, etc. | | ✅︎ |
 | `DeciLMForCausalLM` | DeciLM | `nvidia/Llama-3_3-Nemotron-Super-49B-v1`, etc. | ✅︎ | ✅︎ |

tests/models/registry.py

@@ -239,7 +239,7 @@ _TEXT_GENERATION_EXAMPLE_MODELS = {
         trust_remote_code=True,
     ),
     "Cohere2MoeForCausalLM": _HfExamplesInfo(
-        "/host/engines/cohere-moe",
+        "CohereLabs/command-a-plus-05-2026",
         trust_remote_code=True,
         is_available_online=False,
     ),