MiniMax M3.1 Flash in practice: tests and comparisons with DeepSeek V4.1 Flash

MiniMax confirms Space Bunny was an early M3.1 Flash, priced at $0.15 input and $0.60 output per million tokens, and that it processed about 56.7 trillion tokens anonymously on OpenRouter.

Unsloth's dynamic 2-bit GGUF shrinks M3.1 Flash to 143.9GB (45% smaller than official) while holding 91.5% Top-1 accuracy, runnable in 150GB RAM with setup steps included.

Local deployment: Maya-XS (93 GB) keeps every expert and Maya-S (122 GB) stays closest to the original, running on V100+ NVIDIA, Strix Halo and llama.cpp, plus a new loop guard against repeating answers.

The independent RSI-Inference Bench places Space Bunny second among open-weight models behind DeepSeek V4.1 Flash, and first among open models on its inference optimization track at 1.26x.

A developer demos FlashDesk, a customer-support agent built with MiniMax M3.1 Flash that triages tickets and drafts replies, but cites only MiniMax's own speed and cost claims without independent results.

Local deployment tool Project Maya v1.1.29 officially supports MiniMax-M3.1-Flash, and GGUF quantized builds are already available.

The post notes MiniMax M3.1 Flash is a 428B MoE that Unsloth's 2-bit dynamic GGUF shrinks to 143.9GB with 91.5% top-1 token agreement across seven domains, lowering the RAM barrier though not to laptop level.

A developer says a GGUF quant of M3.1 Flash is coming to Project-Maya and expects it to run faster than DeepSeek V4.1 Flash on an RTX 3090 given its smaller size.

The author breaks down Unsloth's quantization table (1-bit 129GB, 2-bit ~150GB, 4-bit 249GB), estimates a ~87 tok/s theoretical ceiling for 2-bit at 91.5% top-1, and warns the 1M context can't be extrapolated from the 16K table.

Unsloth published quantized GGUF builds for MiniMax-M3.1-Flash; the 2-bit version shrinks size by 45% while keeping 91.5% top-1 and runs in 150GB of RAM, with a deployment guide.

A developer says they had been sleeping on open coding models, using MiniMax M3.1 Flash via OpenCode and Nebius to build and deploy a speculative decoding demo page.

A price table of the 25 most-used OpenRouter models by tokens Oct 19-25 puts MiniMax M3.1 Flash at $0.60 per 1M output tokens, level with DeepSeek V4.1 Flash 1017, across a 150x spread from $0.13 to $20.