Kimi K3.1 Pro vs MiniMax M3.1 Flash
aka Moonshot AI Kimi K3.1 Pro vs M3.1-Flash
- 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
5Meteor strike on a voxel island, MiniMax vs Kimi: MiniMax M3.1 Flash, Kimi K3.1 Pro. Posted by @semichenkko.
Code-only 3D campfire, three models: MiniMax M3.1 Flash, DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @EvoLinkAi.
Floatplane over a fjord, three models: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017, MiniMax M3.1 Flash. Posted by @EnvolDev.
Ant colony foraging benchmark, four models: DeepSeek V4.1 Flash 1017, MiniMax M3.1 Flash, Kimi K3.1 Pro, Muse Spark Open. Posted by @AlicanKiraz0.
Same prompt, separate runs
7Not 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
| Post | Model | Time | Cost | Tokens | Author’s verdict | Post |
|---|---|---|---|---|---|---|
| Satellite Mesh Blackout benchmark, four models in OpenCode@AlicanKiraz0 | MiniMax M3.1 Flash | 12.6 min | $0.22 | — | — | X post |
| Satellite Mesh Blackout benchmark, four models in OpenCode@AlicanKiraz0 | Kimi K3.1 Pro | 20.9 min | $0.85 | — | — | X post |
| Meteor strike on a voxel island, MiniMax vs Kimi@semichenkko | MiniMax M3.1 Flash | — | $0.21 | — | Author’s pick | X post |
| Meteor strike on a voxel island, MiniMax vs Kimi@semichenkko | Kimi 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@EvoLinkAi | MiniMax M3.1 Flash | 3 h 52 min | $0.51 | — | — | X post |
| Code-only 3D campfire, three models@EvoLinkAi | Kimi K3.1 Pro | 50.6 min | $0.82 | — | — | X post |
| Floatplane over a fjord, three models@EnvolDev | Kimi K3.1 Pro | 1 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@EnvolDev | MiniMax M3.1 Flash | 56 min | $0.23 | — | — | X post |
| Ant colony foraging benchmark, four models@AlicanKiraz0 | MiniMax M3.1 Flash | — | $0.10 | — | — | X post |
| Ant colony foraging benchmark, four models@AlicanKiraz0 | Kimi K3.1 Pro | — | $3.001 | — | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| Kimi K3.1 Pro | Moonshot AI | 2026-10-23 | 1,000,000 | Tech blog · Announcement | ||
| MiniMax M3.1 Flash | MiniMax | 2026-09-27 | 1,000,000 | Model 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- Meteor strike on a voxel island, MiniMax vs KimiThe 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.— the author’s view, @semichenkko (paraphrased)
- Floatplane over a fjord, three modelsThe poster says Kimi K3.1 Pro on Max could not beat DeepSeek V4.1 Flash on xhigh, at 49 times the price.— the author’s view, @EnvolDev (paraphrased)


















