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Unsloth AI compared 1-bit Kimi K3 against Claude Opus 5 and GPT‑5.6 using the…

2026-07-29 · 18:08 UTC ·@UnslothAI ·0 min read

Brief

Unsloth AI (post dated 2026-07-29) compared the 1-bit Kimi K3 to Claude Opus 5 and GPT‑5.6 on an identical creative prompt about a glass aquarium cracking and bursting. They demonstrate the 1-bit Kimi K3 GGUF running locally on 4x B200s at 36 tok/s, report a size reduction from 1.56 TB to 594 GB with ~78.9% accuracy retained, and label Kimi K3 the strongest open model to date, supplying GitHub, guide, and Hugging Face links.

Why it matters

Unsloth AI compared 1-bit Kimi K3 against Claude Opus 5 and GPT‑5.6 using the same prompt: “Create a glass aquarium whose side panel develops a visible crack and then bursts” (post dated 2026-07-29).

Key details

  • The 1-bit Kimi K3 GGUF ran locally on 4x B200s at 36 tok/s; the 1-bit variant was shrunk from 1.56 TB to 594 GB (−62%) and reportedly retains ~78.9% accuracy and can run on a Mac Studio with 128 GB RAM.
  • Unsloth AI claims Kimi K3 is “the strongest open model to date” and published resources: GitHub (github.com/unslothai/unsloth), a model guide (unsloth.ai/docs/models/kimi-…), and a GGUF download on Hugging Face (huggingface.co/unsloth/Kimi-…).
Source evidence

We compared 1-bit Kimi K3 to Claude Opus 5 and GPT 5.6.

We gave 4 models the same prompt:
Create a glass aquarium whose side panel develops a visible crack and then bursts.

1-bit Kimi K3 GGUF ran locally on 4x B200s at 36 tok/s.

GitHub repo: github.com/unslothai/unsloth

Video

Unsloth AI (@UnslothAI)

Kimi K3 can now be run locally! ✨

The 1-bit model retains ~78.9% accuracy after we shrunk it from 1.56TB to 594GB (-62% size).

Run on a Mac Studio + 128GB RAM device.

Kimi K3 is the strongest open model to date.

Guide: unsloth.ai/docs/models/kimi-…
GGUF: huggingface.co/unsloth/Kimi-…

— https://nitter.net/UnslothAI/status/2082463988953367031#m