MiniMax M3.1 Flash teaser roundup: 1M context, 5 thinking levels, mixed early tests
A roundup of MiniMax's teaser and known specs: multimodal coding model, 1M-token context, five thinking effort levels, OpenAI/Anthropic-compatible APIs; early testers call it fast and cheap, while one found DeepSeek V4.1 Flash made fewer errors.

MiniMax just teased MiniMax-M3.1-Flash with a Space Bunny video today. Here's what you need to know. MiniMax's official X account posted "Welcome back. Space Bunny. 🚀 MiniMax-M3.1-Flash is coming." It came with a 25-second video. RyanLee of MiniMax had posted "Dear friends, we are back." an hour earlier. The post passed 500K views in about 12 minutes and now sits at 545K. Space Bunny was a stealth model that appeared free on OpenCode and OpenRouter. Testers guessed it was MiniMax from its tokenizer and benchmark runs. On Sep 26, LuminaBench noted MiniMax's "M3-a" deployment returned the model name "space-bunny". MiniMax has now confirmed it is M3.1-Flash. Users say it became the most used model on OpenCode and OpenRouter while free. What we know about the model. MiniMax's API docs list M3.1-Flash as a multimodal coding model with a 1M-token context window and tunable thinking depth. It takes text and image input, and reports mention video input too. It has OpenAI and Anthropic-compatible APIs. AIHubmix says it is live there for coding, office automation and visual reasoning. Early testers call it fast and very cheap, though MiniMax hasn't published per-token pricing in the material we have. Reactions are mixed. Some early users praise its speed in agent coding loops. One tester found the preview version disappointing, and another found DeepSeek V4.1 Flash made fewer errors than Space Bunny. MiniMax's Zekun also noted the model is in the API docs. On Oct 17 Zekun posted that more open releases are coming. Key numbers: - 1M-token context window - 5 thinking effort levels in the preview - Teaser video: about 25 seconds - Teaser views: 545K, with 3.8K likes - Token Plan subscriptions start at $22 a month MiniMax says M3.1-Flash is coming, with no exact release date given yet.
This post quotes another post: “MiniMax teases M3.1 Flash launch and nods to Space Bunny”