Kimi K3.1 Pro vs MiniMax M3.1 Flash

aka Moonshot AI Kimi K3.1 Pro vs M3.1-Flash

5 posts130 likes13.4K views

  • Author picksMiniMax M3.1 Flash1–0
  • CheaperMiniMax M3.1 Flash5/5 postsmedian gap ~29×
  • FasterMiniMax M3.1 Flash2/3 postsmedian gap ~1.3×

As stated in each post, not a controlled benchmark.

Posts

5

Same prompt, separate runs

7

Not a controlled comparison: prompts, tools and time differ.

About this matchup

Kimi K3.1 Pro vs MiniMax M3.1 Flash in real side-by-side tests: 5 posts from X where both got the same prompt, with cost or time from every post. Judge coding ability from the actual outputs.

Kimi K3.1 Pro vs MiniMax M3.1 Flash: which is better for coding?

Which is better for coding, Kimi K3.1 Pro or MiniMax M3.1 Flash?

Author picks: where the author preferred one of the two, they picked MiniMax M3.1 Flash once and Kimi K3.1 Pro never. That covers 1 of the 5 posts here; each post is a different task, so watch the outputs above for the work you care about.

Which is cheaper, Kimi K3.1 Pro or MiniMax M3.1 Flash?

5 posts state a cost for both: MiniMax M3.1 Flash was cheaper in all 5 (median gap ~29×). These are the costs the posts state for each run, not list prices.

Which is faster, Kimi K3.1 Pro or MiniMax M3.1 Flash?

3 posts state a time for both: MiniMax M3.1 Flash was faster in 2; Kimi K3.1 Pro in 1 (median gap ~1.3×). Times are as stated in each post; tools and settings differ between posts.

Summary

Kimi K3.1 Pro and MiniMax M3.1 Flash appear together in 5 posts on X: satellite Mesh Blackout benchmark, four models in OpenCode (@AlicanKiraz0), meteor strike on a voxel island, MiniMax vs Kimi (@semichenkko), code-only 3D campfire, three models (@EvoLinkAi), floatplane over a fjord, three models (@EnvolDev) and ant colony foraging benchmark, four models (@AlicanKiraz0). 4 of them are part of larger lineups with other models. In @AlicanKiraz0's ant colony foraging benchmark, four models, MiniMax M3.1 Flash was cheaper ($0.10 vs $3.001), as reported in the post. In @EnvolDev's floatplane over a fjord, three models, MiniMax M3.1 Flash was cheaper ($0.23 vs $24.12) and faster (56 min vs 1 h 12 min), as reported in the post. In @AlicanKiraz0's satellite Mesh Blackout benchmark, four models in OpenCode, MiniMax M3.1 Flash was cheaper ($0.22 vs $0.85) and faster (12.6 min vs 20.9 min), as reported in the post. In @semichenkko's meteor strike on a voxel island, MiniMax vs Kimi, MiniMax M3.1 Flash was cheaper ($0.21 vs $6.10), as reported in the post. In @EvoLinkAi's code-only 3D campfire, three models, MiniMax M3.1 Flash was cheaper ($0.51 vs $0.82) and Kimi K3.1 Pro was faster (50.6 min vs 3 h 52 min), as reported in the post.

What each post reports

Kimi K3.1 Pro vs MiniMax M3.1 Flash: cost, time and tokens as stated in each post
PostModelTimeCostTokensAuthor’s verdictPost
Satellite Mesh Blackout benchmark, four models in OpenCode@AlicanKiraz0MiniMax M3.1 Flash12.6 min$0.22——X post
Satellite Mesh Blackout benchmark, four models in OpenCode@AlicanKiraz0Kimi K3.1 Pro20.9 min$0.85——X post
Meteor strike on a voxel island, MiniMax vs Kimi@semichenkkoMiniMax M3.1 Flash—$0.21—Author’s pickX post
Meteor strike on a voxel island, MiniMax vs Kimi@semichenkkoKimi K3.1 Pro—$6.10—The poster says they paid 29x more for the worse one: MiniMax M3.1 Flash has bouncing debris and a treeline that burns tree by tree, Kimi K3.1 Pro has chunky cubes and a shapeless smoke column.X post
Code-only 3D campfire, three models@EvoLinkAiMiniMax M3.1 Flash3 h 52 min$0.51——X post
Code-only 3D campfire, three models@EvoLinkAiKimi K3.1 Pro50.6 min$0.82——X post
Floatplane over a fjord, three models@EnvolDevKimi K3.1 Pro1 h 12 min$24.12—The poster says Kimi K3.1 Pro on Max could not beat DeepSeek V4.1 Flash on xhigh, at 49 times the price.X post
Floatplane over a fjord, three models@EnvolDevMiniMax M3.1 Flash56 min$0.23——X post
Ant colony foraging benchmark, four models@AlicanKiraz0MiniMax M3.1 Flash—$0.10——X post
Ant colony foraging benchmark, four models@AlicanKiraz0Kimi K3.1 Pro—$3.001——X post

Only numbers stated in each post. “—” means the post doesn’t say.

Quick facts

ModelVendorReleasedInput $/1M tokensOutput $/1M tokensContext (tokens)Official links
Kimi K3.1 ProMoonshot AI2026-10-231,000,000Tech blog · Announcement
MiniMax M3.1 FlashMiniMax2026-09-271,000,000Model docs

From the vendors’ official pages, checked 2026-10-24. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.

Who won where

2

Models

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