Model overview
NVFP4-quantized version of google/gemma-4-26B-A4B-it in **modelopt format**, optimized for vLLM on NVIDIA Blackwell (SM120) GPUs. Other available NVFP4 quantizations of this model quantize attention layers too, which causes: 1. Quality degradation from aggressive attention quantization 2. vLLM's QKV fusion scale bug (fused projections take `max()` of global scales, causing underflow) 1. Started from RedHatAI/gemma-4-26B-A4B-it-NVFP4 (compressed-tensors format) 2. Dequantized all 115 self-attention projections (q/k/v/o across 30 layers) back to BF16 using FP4-E2M1 lookup table 3. Converted from compressed-tensors to modelopt format: - `weight_packed` -> `weight` (same data) - `weight_global_scale` (divisor) -> `weight_scale_2` (1/divisor) - `input_global_scale` (divisor) -> `input_scale` (1/divisor) 4. Updated quantization config to match NVIDIA's modelopt pattern with proper `exclude_modules`
Key features
特点摘要待依据来源补齐，不凭模型名称推断能力。
Limitations & considerations
Sources are insufficient to establish specific limitations. Verify task performance, latency, data policies, licensing and version lifecycle.
Source prices & cost analysis
Prices vary by channel, region and configuration. Channel quotes are listed independently and are not treated as a single official provider price.
| Source / channel | Input | Output | Billing unit | Collected at |
|---|---|---|---|---|
| No verified prices yet. Check the source channel. | ||||
Estimate monthly base token costs
Estimates exclude cache discounts, tiered pricing, multimodal surcharges, web search, taxes and additional reasoning output.
Public benchmarks & run configuration
暂无已采集的可核验公开评分。模型未上榜不代表能力较低。
View full indexed rankings →Frequently asked questions
Do open weights permit free commercial use?
Not necessarily. Check the version license, commercial conditions and usage policies. Self-hosting incurs compute and maintenance costs.
Are these real-time billing prices?
These are timestamped source snapshots, not live billing prices. Check the channel for current versions, regions, discounts and billing methods.
Sources & traceability
许可证：apache-2.0。模型介绍与第三方评测均以原来源的具体版本和方法为准。