Verified 256K long-context result (ExLlamaV3 runtime, 2026-09-27)
On a single GB10, our standalone ExLlamaV3 + TabbyAPI runtime
(r0b0tlab/glm53-flash-exl3-exllamav3-gb10)
with our EXL3 DFlash2 draft
(r0b0tlab/GLM-5.3-Flash-DFlash2-EXL3-3.00bpw)
served this pack at 262,144 tokens (FP16 KV, batch size 1, DFlash2 K=5)
and passed a token-exact needle-in-a-haystack retrieval at
259,993 actual prompt tokens — clean answer, exact client/server token
parity, guarded by an independent 6,144-MiB host-memory floor with no NVRM
allocation failure.
Not qualified on that profile: multi-key output formatting, concurrency > 1,
throughput at 256K, long-run stability. Details and sanitized evidence live in
the runtime repository.
Serving
Two runtimes are available for this pack:
-
ExLlamaV3 / TabbyAPI (256K verified):
r0b0tlab/glm53-flash-exl3-exllamav3-gb10 —
native ARM64 CUDA 13 container, guarded 256K serve.
Published image (ARM64/SM121):
docker pull ghcr.io/r0b0tlab/glm53-flash-exl3-exllamav3-gb10:b25c467.
-
vLLM (32,768-token published profile):
r0b0tlab/glm53-flash-exl3-dflash2-sm121 —
host-native vLLM v0.30.0rc1 + EXL3 plugin; DFlash2 K=5 measured
structured 50.2 / code 43.4 / prose 19.5 tok/s single-stream on one GB10.
The two engines' results are independent; do not transfer between them.
Q200v2 quality kit on the ExLlamaV3 runtime (2026-09-27)
Text-180: 168/180 (93.33%) — GSM8K 98.75%, HumanEval 97.5%, IFEval 77.5%,
hard_reasoning 95.0%. BFCL-hard20: 6/20. Full 200: 174/200 (87.0%).
Serial execution, effort=low, zero transport errors. (The vLLM runtime's
2026-09-21 kit on its own 32K profile: 170/180 text, 10/20 BFCL — engines are
independent; scores do not transfer.) Evidence:
evidence/glm53-exl3-q200v2-20260927/ in the ExLlamaV3 runtime repo.
Known limits
- Single GB10, TP=1. Vision verified by image Q&A smoke (image requests are
drafted text-only under DFlash2).
- C≥2 tool-call loads not exercised on the 256K profile.
Provenance
Quantized by r0b0tlab from zai-org/GLM-5.3-Flash (MIT). Weights unchanged
beyond quantization. EXL3 format follows exllamav3 (MIT).