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

A developer says they were using Space Bunny in OpenCode but switched to DeepSeek as soon as it became available, without giving specific reasons or test data.

Testing M3.1 Flash in the redesigned MiniMax Code, the author saw it find the real bug instead of patching around it, refuse to pad weak results, write its own tests to 12/12 green, and mark things UNVERIFIED.

A user claims MiniMax was good before Space Bunny but now seems average, and calls MissingNo trash after trying it.

The author tests M3.1 Flash Preview with particle effects, SVG cameras and black hole simulations, finding its grasp of spatial relations and visual composition strong for a Flash model.

A user runs custom advanced tasks on M3.1 Flash Preview, saying particle effects, SVG cameras and black hole visuals all look decent and the generated motion video holds up.

The author ran custom evaluation tasks on M3.1 Flash Preview and found it underrated, with impressive particle animations and strong results on SVG camera, black hole and motion-video tasks, shown in a video.

Hands-on test: MiniMax M3.1 Flash produced a complete bullet-hell mini-game with three bullet types, collisions, HP and sound from a single prompt, deployed and playable online, needing fewer prompt rounds than Gemini 3.8 Flash.

A developer building a SaaS in 50 days used MiniMax M3.1 Flash for UI generation, wrote skills for different effects, and found a 100-component library with an escape hatch didn't work well before tuning it to a better state.

A user says Space Bunny comes from MiniMax and is really good, while suggesting other models may have been distilled from American ones.

Hands-on with M3.1 Flash through mcode on Ubuntu: reading drone battery and a thin power line to pick a landing pad, building a 3D game from scratch with Blender and Godot, and pinpointing the exact line of a hidden bug in a legacy DB2 materialized query table.

After testing Space Bunny on OpenCode for two days, the author calls it very fast and smart, reminiscent of Opus, and wonders which shadow model it is.

Using MiniMax Code on the M3.1 Flash model, the author made a walkable 3D city with buildings on both sides from a single prompt with no follow-up edits, in about 15 minutes.