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spark-x2.5-4b
# Spark-X2.5
[](https://join.slack.com/t/tokenspark/shared_invite/zt-432qf8l2f-5~dLyXv8uETr0P0UuC07nw)
[](https://discord.gg/kTDE2Hg8aw)
[](https://www.youtube.com/@SparkLLM)
[](https://dev.to/sparkllm)
[](https://bsky.app/profile/sparkllm.bsky.social)
[](https://x.com/sparkllm)
[](https://www.zhihu.com/people/zhiikz7qh7m)
[](images/xhtoken-wechat.jpg)
> [!Note]
> This repository contains model weights and configuration files for the post-trained model in the Hugging Face Transformers format.
## Introduction
We are introducing Spark-X2.5-4B and Spark-X2.5-1.7B, two compact, general-purpose language models designed to make capable AI more practical, efficient, and accessible. The models deliver strong performance across a broad range of everyday tasks—including conversation, writing, translation, reasoning, coding, tool use, and agentic workflows—achieving leading results among open-source models of comparable size. Spark-X2.5 combines an efficiency-oriented architecture with native context windows of up to 1M tokens, and support for more than 200 languages.
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Repository: localaiLicense: apache-2.0
qwen3.8-flash-next-atomic-iq4
Qwen3.8 Flash Next in AtomicChat's AD-3.84bpw IQ4_XS M64 GGUF
build, with the F16 vision projector. The n-gram table occupies a
separate shard. This entry enables memory mapping and disables llama.cpp
automatic parameter fitting as required by the publisher.
Repository: localaiLicense: other
Attention: Trust Remote Code is required for this model
wemm-embedding-4b
WeMM-Embedding-4B is Tencent's mid-sized Apache-2.0 multilingual embedding
model built on Qwen3.5. This entry serves the original bfloat16 safetensors
with LocalAI's Transformers backend and produces 2,560-dimensional
normalized embeddings for text retrieval, semantic search, and RAG.
The upstream model can also embed images and videos. LocalAI currently
exposes text input through its embeddings API for this backend.
Repository: localaiLicense: apache-2.0
byteshape-qwen3.8-27b
ByteShape's ShapeLearn quantization of Qwen3.8 27B for chat, reasoning,
coding, and image input. This IQ4_XS-3.84bpw build uses mixed tensor
precisions and includes a BF16 vision projector. MTP decoding is enabled.
Repository: localaiLicense: apache-2.0
sharp-spark-x2.5-4b
Sharp-Spark is an imatrix quantization of XHToken's Spark-X2.5-4B text model
with an adjusted chat template for coding. This Q4_K_XL build uses the
embedded Sharp-Spark template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
sharp-spark-x2.5-4b-q5
Sharp-Spark is an imatrix quantization of XHToken's Spark-X2.5-4B text model
with an adjusted chat template for coding. This Q5_K_XL build uses the
embedded Sharp-Spark template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
sharp-spark-x2.5-4b-q6
Sharp-Spark is an imatrix quantization of XHToken's Spark-X2.5-4B text model
with an adjusted chat template for coding. This Q6_K_XL build uses the
embedded Sharp-Spark template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
spark-x2.5-4b-q4
Spark-X2.5-4B is XHToken's 4B text model for conversation, reasoning,
coding, and multilingual tasks. This entry uses Q4_K_M GGUF weights;
Q6_K and Q8_0 builds are available as variants. All builds use the
embedded Jinja chat template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
spark-x2.5-4b-q6
Spark-X2.5-4B in Q6_K GGUF format, with the embedded Jinja chat
template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
spark-x2.5-4b-q8
Spark-X2.5-4B in Q8_0 GGUF format, with the embedded Jinja chat
template and a 32K-token default context.
Repository: localaiLicense: apache-2.0
qwen3.8-4b-q4
Qwen3.8-4B is Empero AI's full-parameter distillation of Qwen3.8 2.4T
A95B into the Qwen3.5-4B architecture. It targets mathematics, reasoning,
instruction following, and tool use with a native 262K-token context
window. This default entry uses Q4_K_M weights; a higher-quality Q8_0
build is available as a variant.
Repository: localaiLicense: apache-2.0
qwen3.8-4b-q8
Qwen3.8-4B in the higher-quality Q8_0 GGUF format. This variant preserves
more model fidelity for hosts with enough memory.
Repository: localaiLicense: apache-2.0
qwen3.8-4b-distill-q4
Qwen3.8 4B Distill is an Apache-2.0, text-only Qwen3.5 4B fine-tune
distilled from Qwen3.8 2.4T A95B reasoning traces. It targets reasoning,
coding, instruction following, and function calling with a 262K native
context window. This entry uses the balanced Q4_K_M GGUF quantization; the
Q8_0 variant offers higher fidelity.
Repository: localaiLicense: apache-2.0
qwen3.8-4b-distill-q8
Qwen3.8 4B Distill in the higher-fidelity Q8_0 GGUF format. This text-only
Qwen3.5 4B fine-tune targets reasoning, coding, instruction following, and
function calling with a 262K native context window.
Repository: localaiLicense: apache-2.0
parable-qwen3-4b-claude-fable-5
# Parable-Qwen3-4B-Claude-Fable-5
Qwen3 4B fine-tuned on genuine Claude Fable 5 agent traces. Thinking-mode
reasoning, agent/terminal task flavor, tool-call formatting.
Repository: localaiLicense: apache-2.0
qwen3.6-14b-a3b-fablevibes
Qwen3.6-14B-A3B-FableVibes is an Apache-2.0 mixture-of-experts reasoning
model distilled from Fable 5 and Claude Opus traces, with additional tool
calling and coding data. It retains Qwen 3.6 vision support while pruning
the 35B-A3B base to a 14B consumer-oriented footprint. This default entry
uses the recommended Q4_K_M GGUF quantization and its Q8_0 multimodal
projector.
Repository: localaiLicense: apache-2.0
qwen3.6-14b-a3b-fablevibes-q8
Qwen3.6-14B-A3B-FableVibes is an Apache-2.0 mixture-of-experts reasoning
model distilled from Fable 5 and Claude Opus traces, with additional tool
calling and coding data. This entry uses the near-lossless Q8_0 GGUF
quantization and its matching Q8_0 multimodal projector.
Repository: localaiLicense: apache-2.0
agents-a1-4b
Agents-A1-4B is InternScience's Apache-2.0 dense 4B agentic model, based on
Qwen3.5. It is trained for long-horizon search, engineering and scientific
research, instruction following, tool use, and multimodal tasks. This entry
uses the official Q4_K_M GGUF quantization and vision projector.
Repository: localaiLicense: apache-2.0
agents-a1-4b-q8
Agents-A1-4B is InternScience's Apache-2.0 dense 4B agentic model, based on
Qwen3.5. It is trained for long-horizon search, engineering and scientific
research, instruction following, tool use, and multimodal tasks. This entry
uses the official Q8_0 GGUF quantization and vision projector.
Repository: localaiLicense: apache-2.0
qwen3-4b-dflash
Qwen3-4B paired with its DFlash block-diffusion drafter for speculative decoding on the llama.cpp backend. This is the canonical DFlash pairing documented upstream (`z-lab/Qwen3-4B-DFlash` + `Qwen/Qwen3-4B`).
DFlash produces a whole block of draft tokens in a single forward pass and injects the target model's hidden states into the drafter's attention, which keeps the drafter tiny while making drafting GPU-friendly. The Q4_K_M file carries the full Qwen3-4B target; the ~0.5 GB Q8_0 drafter (`draft-dflash`) accelerates generation without changing the target's outputs. The drafter is not a standalone chat model: it only runs paired with the target, which is why both are bundled here.
Flash attention is required for DFlash and is enabled in this config. A GPU is recommended.
License: Apache 2.0 (Qwen3-4B target) / MIT (z-lab DFlash drafter).
Repository: localaiLicense: apache-2.0
qwen3.5-4b-dflash
Qwen3.5-4B paired with its DFlash block-diffusion drafter for speculative decoding on the llama.cpp backend.
DFlash produces a whole block of draft tokens in a single forward pass and injects the target model's hidden states into the drafter's attention, which keeps the drafter tiny while making drafting GPU-friendly. The Q4_K_M file carries the full Qwen3.5-4B target; the ~0.6 GB Q8_0 drafter (`draft-dflash`) accelerates generation without changing the target's outputs. The drafter is not a standalone chat model: it only runs paired with the target, which is why both are bundled here.
Flash attention is required for DFlash and is enabled in this config. A GPU is recommended.
License: Apache 2.0 (Qwen3.5-4B target) / MIT (z-lab DFlash drafter).
Repository: localaiLicense: apache-2.0
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