# Sam Witteveen — 'ThinkingCap: The Local Coding Model'

> Sam Witteveen benchmarks ThinkingCap-Qwen3.6-27B for local coding — same accuracy, roughly half the thinking tokens.

- Org: Sam Witteveen
- Date: 2026-07-30
- Category: video
- Source: https://www.youtube.com/watch?v=m1gQu9ApmRQ
- Canonical page: https://ai-tldr.dev/releases/sam-witteveen-thinkingcap-jul30/

## In short

Sam Witteveen walks through ThinkingCap-Qwen3.6-27B, BottleCap AI's Apache-2.0 fine-tune of Qwen3.6-27B that keeps benchmark scores while cutting reasoning tokens by about 46%, aimed at local coding on a single 24 GB GPU.

## What it is

Sam Witteveen's new video reviews ThinkingCap-Qwen3.6-27B, an Apache-2.0 fine-tune of Alibaba's Qwen3.6-27B released by BottleCap AI on July 13. The model targets developers running a local coding assistant on a single 24 GB GPU and is published on Hugging Face for direct download.

## How it works

ThinkingCap trains the base Qwen3.6-27B checkpoint with a reward that credits shorter, sufficient reasoning traces instead of only correctness. The result is roughly 46% fewer reasoning tokens on average across evaluation domains, with LiveCodeBench going up 3.6 points to 84.3% and GPQA-Diamond staying within 1.6 points of the base at 83.8%.

## Why it matters

Local coding assistants are gated on tokens-per-second and VRAM budget; cutting thinking tokens in half at the same accuracy makes ThinkingCap a drop-in replacement for a Qwen3.6-27B loop running on a single RTX 4090 or 3090. Sam Witteveen's channel is where a lot of local-LLM builders decide what to try next.

## Who it's for

local-LLM builders, indie coding-agent developers

## Try it

Watch the video, then pull `bottlecapai/ThinkingCap-Qwen3.6-27B` from Hugging Face

## Links

- [Watch on YouTube](https://www.youtube.com/watch?v=m1gQu9ApmRQ)
- [Sam Witteveen Channel](https://www.youtube.com/channel/UC55ODQSvARtgSyc8ThfiepQ)
- [ThinkingCap on Hugging Face](https://huggingface.co/bottlecapai/ThinkingCap-Qwen3.6-27B)
- [BottleCap AI Announcement](https://bottlecapai.com/post/thinkingcap-qwen3-6-27b/)