Model Overview

Description:

The NVIDIA Qwen3-235B-A22B-Thinking-2507-FP4 Eagle model is the Eagle head of the Alibaba’s Qwen3-235B-A22B-Thinking-2507 model in FP4, which is an auto-regressive language model that uses a mixture-of-experts (MoE) architecture with 32 billion activated parameters and 1 trillion total parameters. For more information, please check here. The NVIDIA Qwen3-235B-A22B-Thinking-2507-FP4 Eagle3 model incorporates Eagle speculative decoding with TensorRT Model Optimizer.

This model is ready for commercial/non-commercial use.

License/Terms of Use:

Use of these model weights is governed by the nvidia-open-model-license. Additional Information: Apache License 2.0.

Deployment Geography:

Global

Use Case:

Developers designing AI Agent systems, chatbots, RAG systems, and other AI-powered applications. Also suitable for typical instruction-following tasks.

Release Date:

Hugging face 02/27/2026 via [https://huggingface.co/nvidia/Qwen3-235B-A22B-Thinking-2507-FP4-Eagle3]

Model Architecture:

Architecture Type: Transformers Network Architecture: Llama3 Model Parameters: 1B This model was developed based on Qwen3-235B-A22B-Thinking-2507-FP4

Input:

Input Type(s): Text Input Format(s): String Input Parameters: One-Dimensional (1D): Sequences Other Properties Related to Input: Max Context Length: 262144

Output:

Output Type(s): Text Output Format: String Output Parameters: One-Dimensional (1D): Sequences Other Properties Related to Output: Max Context Length: 262144

Our AI models are designed and/or optimized to run on NVIDIA GPU-accelerated systems. By leveraging NVIDIA’s hardware (e.g. GPU cores) and software frameworks (e.g., CUDA libraries), the model achieves faster training and inference times compared to CPU-only solutions.

Software Integration:

Supported Runtime Engine(s):

• TensorRT-LLM

Supported Hardware Microarchitecture Compatibility:

• NVIDIA Blackwell

Preferred Operating System(s):

• Linux

The integration of foundation and fine-tuned models into AI systems requires additional testing using use-case-specific data to ensure safe and effective deployment. Following the V-model methodology, iterative testing and validation at both unit and system levels are essential to mitigate risks, meet technical and functional requirements, and ensure compliance with safety and ethical standards before deployment.

Model Version(s):

v1

Training and Evaluation Datasets:

** The total size (in number of data points): 6.34M ** Total number of datasets: 1
** Dataset partition: Training 100%

Training Dataset:

Link: From the Nemotron-Post-Training-Dataset-v2, only prompts were used for data synthesis; the original responses from GPT were not used. The synthesized data was then used to train the Eagle modules.

** Data Modality

• Text

** Text Training Data Size

• More than 10 Trillion Tokens

** Data Collection Method by dataset

• Hybrid: Synthetic, Human, Automated

** Labeling Method by dataset

• Hybrid: Synthetic, Human, Automated Properties: 6.34M samples, majority synthetic, others sourced from commercially-friendly datasets.

Evaluation Dataset:

Link: MTBench, for more details, see here

** Data Collection Method by dataset

• Hybrid: Human, Synthetic

** Labeling Method by dataset

• Hybrid: Human, Synthetic

Properties: 80 multi-turn dialogue sequences, each annotated with expert preference votes.

Inference:

Acceleraton Engine: TensorRT-LLM 1.2.0rc6 Test Hardware: B200

Eagle Speculative Decoding

Synthesized data was obtained from Alibaba's Qwen3-235B-A22B-Thinking-2507 model, which is then used to finetune the Eagle modules. This model is ready for inference with TensorRT-LLM in Eagle speculative decoding mode. Eagle modules are used to predict candidate tokens beyond the next token. In the generation step, each forward Eagle module generates a distribution of tokens beyond the previous. Then, a tree-based attention mechanism samples some candidate sequences for the original model to validate. The longest accepted candidate sequence is selected so that more than 1 token is returned in the generation step. The number of tokens generated in each step is called acceptance rate.

Usage

To serve the checkpoint with TensorRT-LLM, follow the sample commands below with the TensorRT-LLM GitHub repo:

trtllm-serve <Qwen3-235B-A22B-Thinking-2507-FP4 checkpoint> --host 0.0.0.0 --port 8000 --backend pytorch --max_batch_size 32 --max_num_tokens 8192 --max_seq_len 8192 --tp_size 8 --extra_llm_api_options extra-llm-api-config.yml

extra-llm-api-config.yml is like this

enable_attention_dp: false
disable_overlap_scheduler: true
enable_autotuner: false

cuda_graph_config:
    max_batch_size: 1

speculative_config:
    decoding_type: Eagle
    max_draft_len: 3
    speculative_model_dir: <eagle3 checkpoint>

kv_cache_config:
    enable_block_reuse: false

Evaluation

The Eagle acceptance rate benchmark results (MT-Bench) with draft length 3 are presented in the table below:

Ethical Considerations

NVIDIA believes Trustworthy AI is a shared responsibility and we have established policies and practices to enable development for a wide array of AI applications. When downloaded or used in accordance with our terms of service, developers should work with their internal model team to ensure this model meets requirements for the relevant industry and use case and addresses unforeseen product misuse.

For more detailed information on ethical considerations for this model, please see the Model Card++ Explainability, Bias, Safety & Security, and Privacy Subcards below.

Please report model quality, risk, security vulnerabilities or NVIDIA AI Concerns here. SUBCARDS:

Explainability

Bias

Safety & Security

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