How to Use MiniMax M3 in Claude Code (Full Setup + Tests) | Open Source AI

How to Use MiniMax M3 in Claude Code (Full Setup + Tests) | Open Source AI

J
Jon Law
12 Video Views·Jul 24, 2026

Check out M3! Here: https://platform.minimax.io/subscribe/coding-plan?code=JeAVDDg5MT&source=link

MiniMax M3 just landed, and it's one of the most impressive open-source AI models I've seen. It scores 59% on SWE-bench Pro (ahead of GPT 5.5), packs a 1 million token context window, reads images and videos natively, and costs about 15x less than Claude Opus. In this video, I plug MiniMax M3 into Claude Code and run it through three real tests: building a full-stack expense tracker from scratch, analyzing the entire FastAPI codebase with no RAG or chunking, and rebuilding a live landing page from a single screenshot. Then we break down the pricing, the token plans, and whether open-source models can actually replace the closed-source frontier models for your daily coding workflows. Try MiniMax M3 yourself at platform.minimax.io (12% off any token plan with the link above). This video is sponsored by MiniMax.

CHAPTERS:
0:00 An Open-Source Model Beat GPT 5.5 at Coding
0:37 In This Video: MiniMax M3 + Claude Code (3 Tests)
1:14 Why Open-Source AI Models Matter Now
2:19 The Rise of Open-Source Coding Models (DeepSeek, Kimi, MiniMax)
2:46 What is MiniMax M3?
2:54 MiniMax M3 Benchmarks (SWE-bench Pro, Terminal-Bench, BrowseComp)
3:21 1 Million Token Context Window & MiniMax Sparse Attention (MSA)
3:38 Native Multimodality: Images & Video
3:48 Open Weights on Hugging Face (428B Parameters)
4:17 How to Try MiniMax M3 (platform.minimax.io)
5:03 How to Install MiniMax M3 in Claude Code
5:58 Verifying the M3 Model Inside Claude Code
6:27 Demo 1: Building a Full-Stack Expense Tracker App
7:42 Demo 2: Analyzing the Entire FastAPI Codebase (1M Context Test)
9:15 Demo 3: Screenshot to Code (Rebuilding a Landing Page)
10:20 The Results: One-Prompt Website Rebuild
10:59 MiniMax M3 Pricing vs Claude Opus (15x Cheaper)
11:47 MiniMax Subscription Token Plans Explained
12:15 The Full MiniMax Model Ecosystem
12:33 My Verdict: Open-Source vs Closed-Source Models
13:19 Self-Hosting the Open Weights (Hardware & License Notes)
13:37 Who Should Actually Use MiniMax M3
14:12 Final Thoughts & Outro

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