config.json

{
  "_external_rope_config_kwargs": {},
  "architectures": [
    "GptOssForCausalLM"
  ],
  "attention_bias": true,
  "attention_dropout": 0.0,
  "attn_mechanism": "vanilla",
  "backend": null,
  "bits": null,
  "blocksize_b": 1,
  "blocksize_k": 128,
  "blocksize_q": 128,
  "decode_attn_mechanism": null,
  "dtype": "bfloat16",
  "easy_method": "train",
  "eos_token_id": 200002,
  "experts_per_token": 4,
  "fcm_max_ratio": 0.0,
  "fcm_min_ratio": 0.0,
  "flash_attention_backward_pass_impl": "triton",
  "fsdp_is_ep_bound": true,
  "gradient_checkpointing": "",
  "gradient_checkpointing_targets": null,
  "hardware_abstraction": false,
  "head_dim": 64,
  "hidden_act": "silu",
  "hidden_size": 2880,
  "initial_context_length": 4096,
  "initializer_range": 0.02,
  "intermediate_size": 2880,
  "kv_cache_quantization_config": null,
  "kv_cache_sharding_sequence_axis_name": "sp",
  "layer_types": [
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention",
    "sliding_attention",
    "full_attention"
  ],
  "max_position_embeddings": 131072,
  "mlp_activations_limit": 7.0,
  "model_type": "gpt_oss",
  "moe_force_xla_gmm": false,
  "moe_method": "fused_moe",
  "moe_tiling_size_batch": 4,
  "moe_tiling_size_dim": 128,
  "moe_tiling_size_seqlen": 128,
  "num_attention_heads": 64,
  "num_experts_per_tok": 4,
  "num_hidden_layers": 36,
  "num_key_value_heads": 8,
  "num_local_experts": 128,
  "operation_configs": null,
  "output_router_logits": false,
  "pad_token_id": 199999,
  "pallas_k_block_size": 128,
  "pallas_m_block_size": 128,
  "pallas_n_block_size": 128,
  "partition_axis": {
    "attention_dim_axis": null,
    "attention_kv_dim_axis": null,
    "batch_axis": [
      "fsdp",
      "dp"
    ],
    "bias_head_sequence_axis": null,
    "bias_key_sequence_axis": null,
    "data_parallel_axis": "dp",
    "decode_attention_dim_axis": null,
    "decode_attention_kv_dim_axis": null,
    "decode_batch_axis": [
      "fsdp",
      "dp"
    ],
    "decode_head_axis": "tp",
    "decode_key_sequence_axis": "sp",
    "decode_kv_head_axis": "tp",
    "decode_query_sequence_axis": null,
    "expert_axis": "ep",
    "expert_gate_axis": null,
    "expert_parallel_axis": "ep",
    "fully_sharded_data_parallel_axis": "fsdp",
    "head_axis": "tp",
    "hidden_state_axis": "tp",
    "key_sequence_axis": "sp",
    "kv_head_axis": "tp",
    "mlp_intermediate_axis": "tp",
    "query_sequence_axis": "sp",
    "sequence_axis": "sp",
    "sequence_parallel_axis": "sp",
    "tensor_parallel_axis": "tp",
    "vocab_axis": "tp"
  },
  "platform": null,
  "precompute_masks": true,
  "pretraining_tp": 1,
  "quantization_config": null,
  "rms_norm_eps": 1e-05,
  "rope_scaling": {
    "beta_fast": 32.0,
    "beta_slow": 1.0,
    "factor": 32.0,
    "original_max_position_embeddings": 4096,
    "rope_type": "yarn",
    "truncate": false
  },
  "rope_theta": 150000,
  "router_aux_loss_coef": 0.9,
  "scan_attention_layers": false,
  "scan_mlp_chunk_size": 1024,
  "scan_ring_attention": true,
  "sequence_axis_name": "sp",
  "sharding_axis_dims": [
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    -1,
    1,
    1,
    1
  ],
  "sharding_axis_names": [
    "dp",
    "fsdp",
    "ep",
    "tp",
    "sp"
  ],
  "sharding_dcn_axis_dims": null,
  "sliding_window": 128,
  "sp_is_ep_bound": true,
  "swiglu_limit": 7.0,
  "tie_word_embeddings": false,
  "transformers_version": "4.57.3",
  "use_cache": true,
  "use_expert_tensor_mode": false,
  "use_ring_of_experts": false,
  "use_scan_mlp": false,
  "use_sharded_kv_caching": false,
  "use_sharding_constraint": false,
  "vocab_size": 201088
}