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Publication summary: ThinkingCap Qwen3.8 27B AWQ 32K BF16 qualification

Canonical facts

  • Model identity: bottlecapai/ThinkingCap-Qwen3.8-27B-NVFP4A4-AWQ@f8fe157f207a13f977bc3d620ce10a3e9ba5ab11.
  • Runtime identity: vLLM 0.29.0; Triton attention, MTP3, BF16 KV.
  • Recipe: 32K BF16 snapshot.
  • Measurement path: direct managed C1 endpoint.
  • Capacity: median 455.4421 ms TTFT and 158.355179 tok/s decode; 61.14585 tok/s aggregate, n=100 strict. Warm process, unique prompts, prefix cache off, nominal 4K input, 45 output tokens, thinking off. Whole-recipe result; no isolated MTP speedup claim.
  • Qualification: 27 functional, 8 thinking, 18/18 vision, 30/30 limited MMLU, context 60/60, agentic 2/2.
  • Boundary: two images about 1 MP; zero video; no C2, SWE, soak, maximum-context, route, or promotion claim.
  • Evidence: finding, context, agentic.

X / short post

Local RTX 5090: ThinkingCap Qwen3.8 27B AWQ qualified a bounded 32K/C1 Triton MTP3 BF16 direct lane: 158.355 tok/s median decode, 60/60 context, 2/2 agentic. No promotion: docs/findings/2026-09-23-thinkingcap-5090.md

Reddit

ThinkingCap Qwen3.8 27B: bounded 32K RTX 5090 direct qualification
One RTX 5090, direct 32K/C1 Triton + MTP3 BF16 KV: 100 strict short-output requests measured 455.4421 ms median TTFT, 158.355179 tok/s median decode, and 61.14585 tok/s aggregate throughput. Standard functional, vision, limited quality, 60/60 context, and 2/2 agentic gates passed. No route or promotion changed.

Screenshot alt text

A 32K/C1 Triton + MTP3 BF16 KV local result on one RTX 5090: 158.355179 tok/s median decode, 60/60 context, and 2/2 agentic. The scope excludes C2, video, SWE, soak, and promotion.

Claim ledger

Public claim Conditions Evidence
32K capacity n=100 strict, nominal 4K/C1 native
Context 60/60, retained actual-token ranges context
Agentic 2/2, six turns, four tools agentic
Final health pinned 32K managed state, direct retention authorized ending state, HTTP, managed status
No promotion no route/client alias/deployed-topology change finding