Arena.ai (@arena) · 10/19/2026, 20:17:52
MiniMax Releases M3.1 Flash with Improved Performance and Lower Costs
MiniMax has released the M3.1 Flash model, ranking #12 among open models in the Code Arena WebDev leaderboard. It achieves a 106-point increase over its predecessor M3 while reducing API costs by 50%. The model shows significant ranking improvements across various categories, with weights scheduled for release on October 23.
SOURCE COVERAGEFull Original Report
Arena.ai (@arena) · 2026-10-19 12
MiniMax-M3.1-Flash by @MiniMax_AI is live in the Code Arena: WebDev. It debuts at #12 among open models with 1588 pts (#32 overall). It also lifts MiniMax to #12 among all labs!
MiniMax-M3.1-Flash is a +106 pt increase from the previous variant, MiniMax-M3 with 1482 pts at #19 among open (#66 overall). Priced at 0.60 output per 1M tokens, MiniMax-M3.1-Flash also costs 50% less.
It also improved in ranking and pts across all categories compared to MiniMax-M3:
- Reference-Based Design: #20 → #7 (+155 pts)
- Content Creation Tools: #20 → #7 (+113 pts)
- Data & Analytics: #18 → #8 (+68 pts)
- Gaming: #21 → #9 (+179 pts)
- Simulations: #22 → #13 (+122 pts)
- Brand & Marketing: #18 → #14 (+78 pts)
- Consumer Product: #18 → #14 (+64 pts)
Congrats to the team @MiniMax_AI on this release!
↳ 引用 @MiniMax_AI (MiniMax (official)): MiniMax M3.1 Flash: Space Performance + Bunny Speed
🚀🐰 Yes, Space Bunny - which has topped global leaderboards with 200T+ tokens - was an earlier version of M3.1 Flash.
💰Redefining the performance economics of agentic AI. M3.1 Flash achieves frontier-level intelligence across key tasks such as Cowork (Automation-Bench: 62%; ALE: 30%), Coding (DeepSWE: 74%) and Visual Reasoning (BabyVision: 91%), at 1/3 the cost of M3 and 3x the speed.
API pricing (flat rate): 0.60 per 1M input/output tokens, with cache reads at $0.015 / 1M tokens.
Model weights will arrive on Oct 23.
API:
