Space Bunny Alpha. Revealed: an early MiniMax M3.1 Flash. The stealth model MiniMax just unmasked.

Our token counts matched MiniMax on all 24 test phrases, 20 days before MiniMax named Space Bunny Alpha an early M3.1 Flash.

By Stealth Models.

StealthMark 1.8.10 results for Space Bunny Alpha: benchmark score 45.5, General Intelligence 35.7, Visual Intelligence 64.4. Strongest at turning a brief into an original character: 78.9 on Selfie. Every StealthMark result of Space Bunny Alpha: Selfie 78.9, Raccoon 74.3, Beach 67.8, Mona Lisa 49.9, Ground Truth 42.7, Foresight 35.8, Latch 34.4, Newton's Mirror 24.9.

See how the early version compares with the final release

The case file. First seen 23 Sep 2026, revealed 19 Oct 2026, developer MiniMax, 1M-token context, text, image and video input, tool calls, about 300 tokens per second in our tests. 23 Sep 2026: appears with no developer's name. 29 Sep 2026, our finding: our token-count test matches MiniMax M3 on all 24 test phrases. 19 Oct 2026: MiniMax names it an early version of MiniMax M3.1 Flash.

See the token-count test

Facts as text
Fact Value
First seen 23 Sep 2026
Revealed 19 Oct 2026
Developer MiniMax
Context 1M tokens
Input Text, image, video
Tool calls Yes
Speed in our tests about 300 tok/s
Access Stealth access ended; MiniMax M3.1 Flash is available

Run it

The final release, MiniMax-M3.1-Flash, is open for non-commercial use under the MiniMax Community License (LICENSE). Its GGUF files are here.

File Size Best for
IQ2_XXS/ 135 GB in 4 parts The smallest size we recommend: 192 GB machines, or a 32 GB GPU with 128 GB of RAM
dspark-MiniMax-M3.1-Flash-Q8_0.gguf 2.1 GB DSpark draft: about 1.5x faster on code and math
mmproj-F16.gguf 1.7 GB Image and video input, full precision
mmproj-Q8_0.gguf 0.93 GB Image and video input, near lossless
mmproj-Q6_K.gguf 0.72 GB Image and video input, smaller
mmproj-Q4_K.gguf 0.49 GB Image and video input, smallest
hf download stealth-model/space-bunny-alpha --local-dir minimax-m3.1-flash \
  --include "IQ2_XXS/*" "mmproj-Q8_0.gguf" "dspark-MiniMax-M3.1-Flash-Q8_0.gguf"

llama-server \
  -m minimax-m3.1-flash/IQ2_XXS/MiniMax-M3.1-Flash-IQ2_XXS-00001-of-00004.gguf \
  --mmproj minimax-m3.1-flash/mmproj-Q8_0.gguf \
  -md minimax-m3.1-flash/dspark-MiniMax-M3.1-Flash-Q8_0.gguf \
  --spec-type draft-dspark --spec-draft-n-max 1 --spec-draft-p-min 0 -np 1 \
  -ngl all -ngld all --n-cpu-moe 60 -fa on --jinja --temp 1.0 --top-p 0.95

--n-cpu-moe 60 keeps all 60 expert layers in system RAM. Lower it until your GPU is full. On a 192 GB Mac, leave it out.


Model guide Β· StealthMark leaderboard
Text and images: CC BY 4.0, stealthmodels.com.

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