Qwen3.8-27B

Checkpoint identity

Official identifier

Qwen/Qwen3.8-27BQwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Architecture

Dense causal language model with vision encoder; hybrid Gated DeltaNet and Gated AttentionQwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Total parameters

Not verified for this recordPublished rounded counts; total stored weights determine the preliminary footprint, including all MoE experts.Qwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Active parameters

Not verified for this recordActive parameters are a compute-related count, not the model's full stored weight count.Qwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Modalities

text-input, image-input, video-input, text-outputQwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Context

262,144 tokensNative configuration where directly verified. Extensions, advertised K-labels and configuration differences are preserved in the notes below.Qwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Release date

Exact release date not independently established in the reviewed artifactsQwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Download access

Public checkpoint referenceQwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

License

Apache 2.0The exact checkpoint includes Apache 2.0 terms. Redistribution, notice preservation, modified-file and patent-license conditions apply. This is distinct from any proprietary Qwen Cloud API offering, which has its own service terms.Qwen3.8-27B official model card (external source) · Qwen3.8-27B checkpoint configuration (external source) · Qwen3.8-27B Apache 2.0 license (external source)

Theoretical weight-memory footprint

A weight estimate is unavailable without a verified parameter count.

This estimate excludes KV cache, activations, quantization metadata, non-weight buffers and serving overhead. It is not a tested GPU fit. MoE routing activates only part of the network per token while the complete expert weights still need storage.

Quantization

The main checkpoint text configuration uses BF16. The publisher lists a separate FP8 artifact; quantized variants and kernels must be evaluated separately rather than inferred from the family name.

Serving considerations

• The card lists 27 billion language-model parameters and a separate vision encoder. The full combined artifact count is left unknown rather than treating the text-model number as a complete multimodal memory budget.
• The card and text configuration agree on 262,144 native positions. One-million-token operation uses an extension and is distinct from native context; the proposed hosted API's limits must not replace the open-checkpoint limit.
• Image/video preprocessing, visual-token expansion and the hybrid attention implementation are part of the deployment boundary. Include visual workload size alongside textual prompt/output lengths when sizing cache and measuring latency.
• The publisher explicitly documents vLLM and SGLang paths. Thinking is enabled by default and reasoning controls are request-sensitive; freeze request settings and chat templates in any evaluation manifest.
• Aguasto has not tested or hosted this checkpoint. Documentation does not establish a particular GPU configuration, concurrency, quality level or available service.

Framework documentation

These are third-party documentation starting points. Support depends on the exact checkpoint, runtime version and hardware.