---

base_model: upstage/Solar-Open2-250B

license: other

license_name: upstage-solar-license

license_link: LICENSE

language:

- en

- ko

- ja

pipeline_tag: text-generation

tags:

- gguf

- solar

- moe

- text-generation

---

Solar Open2 250B GGUF

Built with Solar.

Full-topology GGUF conversions of

upstage/Solar-Open2-250B,

preserving all 48 layers, 320 routed experts, and one shared expert. This is an

independent conversion and is not an official Upstage release.

Variants

| Variant | Split | Purpose |

|---|---:|---|

| BF16 | 11 shards, 500,718,700,672 bytes (466.331 GiB) | High-precision converted reference |

| Q8_0 | 11 shards, 266,136,847,072 bytes (247.859 GiB) | Full-model imatrix and quality reference |

The exact per-shard hashes are in BF16-SHA256SUMS and Q8_0-SHA256SUMS.

Each shard is uploaded as an independent resumable Hub commit; the two

variants use disjoint filenames and can be downloaded independently.

Provenance

• Source revision:

upstage/Solar-Open2-250B@9190fbe63a2ad8e17fc766ccceb36de7c66f004b

• Source tensor count: 47,019
• Source bytes: 500,617,750,484
• GGUF architecture: solar-open2
• Context metadata: 1,048,576 tokens, NoPE
• Converter base: ggml-org/llama.cpp@6ea215d171fd31df943bf1ac8227129f2b963160
• Solar conversion/runtime patch SHA256:

7c267850de7a08af66a9bd64e9d4a3b33e085a4d2888d94a4c3d919f87283e44

The BF16 conversion uses --outtype bf16 --split-max-size 48G. The Q8_0

conversion uses llama-quantize, --pure, --keep-split, Q8_0 token

embeddings, and a Q8_0 output tensor.

Validation status

Both complete split sets passed GGUF metadata, split ordering, tensor count,

topology, bounds, and exact tensor-type checks with zero errors. Each contains

1,083 GGUF tensors: BF16 has 674 BF16 + 409 F32 tensors, and Q8_0 has 674

Q8_0 + 409 F32 tensors.

The Q8_0 model was loaded resident across four H100 NVL GPUs and completed a

32-prompt greedy reference run plus no-think quality sanity prompts covering

Korean, English, Japanese, code, structured JSON, reasoning, and long-text

summarization. The structured-output sample parsed as valid JSON and no NaN,

malformed-output, or broken-generation regression was observed. The four-H100

run is development evidence only, not a DGX Spark sm_121 serving or

performance claim.

License and attribution

The source model and these conversions are distributed under the included

Upstage Solar License. The model name begins with Solar, and this model card

prominently states “Built with Solar” as required by that license.